Last updated 22 Apr 2017

  Check out the new
Great Shefford Observatory blog:

Home
What's New
Location
Equipment
Software
Methods
Results
Gallery
Links
Ephemerides
Moon etc
Meetings
Contact Us
Site Map

What's New

02 Jun 2017 Last updated Results 2017 MPECs
04 Oct 2016 Last updated Results on IAU circulars  
02 Jun 2017 Last updated observing statistics
(see page) Last updated Minor Planet Ephemerides details 
22 Apr 2017 Added reference to paper "Physical and dynamical properties of the anomalous comet 249P/LINEAR" to the Results page.
09 Oct 2016 Added occultation by minor planet (268) Adorea to the Minor Planet Occultations page.
1 Jan 2016 Added occultation by minor planet (589) Croatia to the Minor Planet Occultations page.
15 June 2014 Changed cover picture to Summer lightning turns night into day at Great Shefford Observatory.
18 May 2014 Updated Meetings page with details of The Astronomer 50th anniversary AGM combined with Basingstoke Astronomical Society 10th anniversary meeting.
21 Apr 2014 Updated Meetings page with details of BAA Winchester Weekend 2014.
29 Nov 2012 Changed cover picture to Great Shefford Observatory operating in moonlight.
6 Jun 2012 Following MPC minor planet discovery credit rule changes, reworked Great Shefford Minor Planet Discovery Circumstances page.
13 Aug 2011 Added link to the new Great Shefford Observatory blog
4 Mar 2011 Changed cover picture to Visit to the Catalina Sky Survey team in Tucson, AZ and added Visit to the Catalina Sky Survey team in Tucson, AZ to the Meetings page.
26 Feb 2011 Added list of published papers citing work from Great Shefford to the Results page.
12 Dec 2010 Added image of main belt minor planet (596) Scheila to the Comet Gallery, having been found to be in an apparently cometary outburst by the Catalina Sky Survey Dec 11th.
4 Dec 2010 Added links on the Results on IAU circulars page to old circulars containing references to work done during 1976 - 1985. Added pages to the Man made Satellite Orbit and Ephemerides Page for RW28E3B (=2010 WK1) and 2010-050B (= RV223A9 = Chang'e 2 hardware) and extended the ephemeris for 9O0DC57.
9 Sep 2010 Added new Main Belt discovery 2010 PV78 to the Minor Planet Discovery Circumstances and Ephemerides pages.
29 Aug 2010 Added Minor Planet Occultations page to the Gallery, including pages for occultations by (130) Elektra, (80) Sappho and (105) Artemis. Updated the Minor Planet Discovery Circumstances page with recent object numberings (31 in total).
16 Aug 2010 Extended ephemeris for the distant artificial satellite IMP-8 on the Man made Satellite Orbit and Ephemerides Page. Added new Main Belt discovery 2010 PJ66 to the Minor Planet Discovery Circumstances and Ephemerides pages.
1 June 2010 Minor updates to Software, Links, Meetings. Updated the Minor Planet Discovery Circumstances page with recent object numberings.
17 May 2010 Added new Main Belt discovery 2010 DJ12 to the Minor Planet Discovery Circumstances and Ephemerides pages.
8 Jan 2010 Added new Main Belt discovery 2009 VJ42 to the Minor Planet Discovery Circumstances and Ephemerides pages. Updated the Closest Observed Approaches to the Earth by Minor Planets page.
15 Nov 2009 Added ephemeris for the (probable) distant artificial satellite 9U01FF6 on the Man made Satellite Orbit and Ephemerides Page. Added new Main Belt discovery 2009 VC to the Minor Planet Discovery Circumstances and Ephemerides pages.
14 Oct 2009 Added new Main Belt discoveries 2009 SG171 and 2009 TQ2 to the Minor Planet Discovery Circumstances and Ephemerides pages.
18 Sep 2009 Added ephemeris for the distant artificial satellite 9O0DC57 on the Man made Satellite Orbit and Ephemerides Page. Added new Main Belt discovery 2009 SO to the Minor Planet Discovery Circumstances and Ephemerides pages. Moved 2009 FK1 (= 2007 RA71) to the non-principal designations list on the Minor Planet Discovery Circumstances page.
31 May 2009 Added new Main Belt discoveries 2009 HR12 and 2009 HW58 to the Minor Planet Discovery Circumstances and Ephemerides pages.
7 Apr 2009 Added new Main Belt discoveries 2009 EE3 and 2009 FK1 to the Minor Planet Discovery Circumstances and Ephemerides pages.
8 Mar 2009 Added new Main Belt discoveries 2009 EJ, 2009 EK, 2009 EL2, 2009 EM2 to the Minor Planet Discovery Circumstances and Ephemerides pages.
18 Feb 2009 Added new Main Belt discoveries 2009 CU3, 2009 CB4, 2009 CC4, 2009 CL6 and 2009 CQ6 to the Minor Planet Discovery Circumstances and Ephemerides pages. Revised ephemerides for the distant artificial satellites WMAP and THEMIS-B (=2007-004B) on the Man made Satellite Orbit and Ephemerides Pages.
1 Feb 2009 Changed home page picture to 'Aircraft interloper "frozen" by strobe tail light'. Added new Main Belt discoveries 2009 BC10 and 2009 BG10 to the Minor Planet Discovery Circumstances and Ephemerides pages.
22 Jan 2009 Updated and added links on the Useful Links page. Revised ephemerides for the distant artificial satellites Geotail, WMAP and THEMIS-B (=2007-004B) on the Man made Satellite Orbit and Ephemerides Pages. Added new Main Belt discoveries 2009 AJ2, 2009 AK2 and 2009 AL2 to the Minor Planet Discovery Circumstances and Ephemerides pages.
11 Jan 2009 Added new Main Belt discoveries 2009 AN1 and 2009 AO1 to the Minor Planet Discovery Circumstances and Ephemerides pages.
4 Jan 2009 Added a link for the Fog and Low Cloud animation provided by EUMETSAT to the Moon etc. page. Added new Main Belt discovery 2008 YT24 to the Minor Planet Discovery Circumstances and Ephemerides pages.
29 Dec 2008 Revised ephemeris for artificial satellite THEMIS-B (=2007-004B) on the Man made Satellite Orbit and Ephemerides Pages.
24 Dec 2008 Added new Main Belt discoveries 2008 XZ6 and 2008 XE7 to the Minor Planet Discovery Circumstances and Ephemerides pages.
11 Dec 2008 Updated pseudo-MPEC ephemerides for the distant artificial satellites IMP8, 1983-020A, 1983-020D, Geotail and WMAP on the Man made Satellite Orbit and Ephemerides Pages following recent observations.
30 Nov 2008 Added new Main Belt asteroid discovery 2008 WH2 to the Minor Planet Discovery Circumstances and Ephemerides pages.
9 Nov 2008 Added account of co-pilot Coen van Uden to the 2008 TC3 - Eyewitness accounts of the final moments
4 Nov 2008 Added new inner Main Belt asteroid discovery 2008 UX202 to the Minor Planet Discovery Circumstances and Ephemerides pages.
1 Nov 2008 Added new Main Belt discoveries 2008 UH95 and 2008 UE99 to the Minor Planet Discovery Circumstances and Ephemerides pages.
30 Oct 2008 Added new Main Belt discoveries 2008 UH1, 2008 UF3 and 2008 UO5 to the Minor Planet Discovery Circumstances and Ephemerides pages. Corrected September 2008 figures on the Observing Statistics page.
20 Oct 2008 Added 2008 TC3 - The first asteroid to be discovered before impacting Earth and 2008 TC3 - Eyewitness account of the final moments to the Asteroid Gallery. Updated Closest Observed Approaches of NEOs to Earth with details of 2008 TC3 and 2008 TS26.
18 Oct 2008 Added new Main Belt discoveries 2008 TV9, 2008 TC26 and 2008 TR156 to the Minor Planet Discovery Circumstances and Ephemerides pages.
10 Oct 2008 Added new Main Belt discovery 2008 TG9 to the Minor Planet Discovery Circumstances and Ephemerides pages.
5 Oct 2008 Added new Main Belt discoveries 2008 SB83, 2008 TV and 2008 TR1 to the Minor Planet Discovery Circumstances and Ephemerides pages and added 2008 SE85 to the non-principal designations list on the Discovery Circumstances page.
19 Sep 2008 Added new Main Belt discovery 2008 QM20 to the Minor Planet Discovery Circumstances and Ephemerides pages and added 2008 QE20 to the non-principal designations list on the Discovery Circumstances page.
1 Aug 2008 Added NGC 7380 (Open cluster and nebula in Cepheus) to the Deep Sky Gallery. Added SAGAS Summer meeting of 19 July 2008 to the Meetings page.
7 July 2008 Updated Closest Observed Approaches of NEOs to Earth with details of 2008 JL24. Updated IMP8 ephemeris on the Artificial Satellite Pseudo MPECs page following recently acquired astrometry. Updated Observatory Location lat/long/alt with measurements from GoogleEarth .
10 Apr 2008 Added new Main Belt discoveries 2008 GB2, 2008 GD3 and 2008 GE3 to the Minor Planet Discovery Circumstances and Ephemerides pages.
31 Mar 2008 Updated Closest Observed Approaches of NEOs to Earth with details of 2008 FP. Added new Main Belt discovery 2008 FM5 to the Minor Planet Discovery Circumstances and Ephemerides pages.
23 Mar 2008 Changed home page picture to 'Telescope mounting being tested March 2008' following equipment failure on 12 March 2008.
9 Mar 2008 Updated Closest Observed Approaches of NEOs to Earth with details of 2008 EZ7. Added ephemeris for 2007-004B to the Man made Satellite Orbit and Ephemerides Page.
4 Mar 2008 Added ephemerides for Geotail and WMAP to the Man made Satellite Orbit and Ephemerides Page and updated the ephemerides for 1983-020A, 1983-020D and IMP-8.
23 Feb 2008 Updated Closest Observed Approaches of NEOs to Earth with details of 2008 AF3.
20 Feb 2008 Added a link on the Ephemerides page to Juan Lacruz's Observation Log Query page (which includes J95 in its list of observatories). Changed name of 6R10DB9 to 2006 RH120 in Closest Observed Approaches, A second Moon for the Earth? and related pages following its recent designation as a minor planet.
20 Jan 2008 Added new Main Belt discovery 2008 AV72 to the Minor Planet Discovery Circumstances and Ephemerides pages.
7 Jan 2008 Moved 2007 XW16 from the list of Minor Planet Discoveries to the list of Non-principal designations on the Minor Planet Discovery Circumstances page following its identification with 2003 AG20, which had been observed 5-8 Jan 2003.
4 Jan 2008 Added new Main Belt discovery 2007 YP47 to the Minor Planet Discovery Circumstances and Ephemerides pages. The Ephemerides page has been combined with the previously available Minor Planet Opposition Date page to provide more information in one location.
30 Dec 2007 Updated Closest Observed Approaches of NEOs to Earth with details of 2007 VF189.
24 Dec 2007 Added new Main Belt discoveries 2007 YL2 and 2007 YM2 to the Minor Planet Discovery Circumstances pages. Only two nights of positions were possible before the Moon interfered, so the status of both objects is insecure until the next dark of the Moon.
18 Dec 2007 Added new Main Belt discoveries 2007 XS16, 2007 XT16, 2007 XV16, 2007 XW16, 2007 XY17, 2007 XB18, 2007 XC18, 2007 XD18 & 2007 XU23 to the Minor Planet Discovery Circumstances pages.
27 Nov 2007 Added a 43'x43' wide, 9 tile mosaic image of Comet 17P/Holmes in the Comet Gallery, taken at full Moon with the Moon just 27 distant. Changed format of Minor Planet opposition date details page to include more columns and to identify currently observable objects.
15 Nov 2007 Added Comet P/2007 T2 (Kowalski) to the Comet Gallery.
9 Nov 2007 Updated Comet 17P/Holmes page in the Comet Gallery with an 8-date animation of the expanding inner coma.
28 Oct 2007 Added Comet 17P/Holmes to the Comet Gallery.
27 Oct 2007 Updated details following the recent numbering of 2005 EC1 as (164359) and, just two months after discovery, 2007 PY1 as (168270)  on the Ephemerides and the Minor Planet Discovery Circumstances pages.
2 Oct 2007 Updated Closest Observed Approaches of NEOs to Earth with details of 6R10DB9 and 2007 RS1.
20 Sep 2007 Added new Main Belt discoveries 2007 RE133 & 2007 RF133 to the Ephemerides and the Minor Planet Discovery Circumstances pages.
13 Sep 2007 Added new Main Belt discoveries 2007 RV10 & 2007 RA12 to the Ephemerides and the Minor Planet Discovery Circumstances pages. 
21 Aug 2007 Added Comet 73P/Schwassmann-Wachmann The Spitzer Space Telescope image page showing comet  fragment identifications and also The full-size Spitzer Space telescope image and Summary of Fragments pages. Added a Spitzer close-up of fragments near H & N to Comet 73P/Schwassmann-Wachmann page 2.
18 Aug 2007 Added new Main Belt discoveries 2007 PO29, 2007 PP29 and 2007 QK to the Ephemerides and the Minor Planet Discovery Circumstances pages. 
13 Aug 2007 Added new Main Belt discoveries 2007 PL, 2007 PG1, 2007 PY1, 2007 PN9 and 2007 PO9 to the Ephemerides and the Minor Planet Discovery Circumstances pages. 
1 Aug 2007 Updated details following the recent numbering of 2003 NL8 as (159786).on the Ephemerides and the Minor Planet Discovery Circumstances pages. 
28 July 2007 Added lists of archived 'Previous NEO Confirmation Page Objects' to the LINKS page.
27 July 2007 Changed home page picture to Summer floods in Great Shefford, taken 20 Jul 2007.
19 July 2007 Added comet C/2007 O1 (LINEAR) to the Comet Gallery.
25 June 2007 Updated 6R10DB9 page and its pseudo-MPEC orbit solution using observations from 14 Sep 2006 to 22 June 2007.
19 June 2007 Added a four frame animation to the 6R10DB9 page from 15 June 2007.
16 June 2007 Updated 6R10DB9 page with details of new astrometry obtained 15 June 2007.
9 June 2007 Moved details from the 2005 UW5 page and added them to a new Closest Observed Approaches to the Earth by Minor Planets page.
5 June 2007 Added 2 June 2007 BAA ARPS meeting to the Meetings page. Added a pseudo MPEC for artificial satellite IMP8 to the Man made Satellite Orbit and Ephemerides Page with ephemeris covering 2007-June - 2008-July.
21 May 2007 Added Aten 2007 HA passing irregular galaxy NGC 4449 to the Deep Sky Gallery. Amended details for two-nighter 2004 VM64 from minor planet discovery to non-principal designation on the Minor Planet Discovery Circumstances page following its re-discovery and re-designation as 2007 HG7. Added 11 May 2007 meeting to the Meetings page.
11 May 2007 Amended details for 2007 GA from minor planet discovery to non-principal designation on the Minor Planet Discovery Circumstances page following its identification with 2004 TN200.
23 Apr 2007 Added new Main Belt discoveries 2007 HQ4, 2007 HR4 and 2007 HB5 to the Ephemerides and the Minor Planet Discovery Circumstances pages. 
7 Apr 2007 Added new Main Belt discovery 2007 GA and updated details following the recent numbering of 2005 VV2 as (155216).on the Ephemerides and the Minor Planet Discovery Circumstances pages. 
2 Apr 2007 Added 6R10DB9 - A second Moon for the Earth? to the Asteroid Gallery. Updated Closest Observed Approaches of NEOs to Earth with details of 2007 EH and 2007 EK. 
29 Mar 2007 Added 2007 EH - A Very Fast Moving Object to the Asteroid Gallery
22 Mar 2007 Added new Main Belt discovery 2007 EA183 to the Ephemerides and the Minor Planet Discovery Circumstances pages. 
15 Mar 2007 Added new Main Belt discovery 2007 CB64 and updated details following the recent numbering of 2005 TV49 as (152298).on the Ephemerides and the Minor Planet Discovery Circumstances pages. 
4 Mar 2007 Added GS733A and updated details on the Man made Satellite Orbit and Ephemerides Pages in the Man made Satellite Gallery.
11 Feb 2007 Added 2006 CJ (recovery at 2nd opposition) to the Asteroid Gallery
8 Feb 2007 Changed home page picture to a Wintry Scene in Great Shefford, taken 8 Feb 2007. 
1 Feb 2007 Updated Closest Observed Approaches of NEOs to Earth with details of 2007 BD.
28 Jan 2007 Added Apollo asteroid 2007 BD7 and Planetary Nebula PK 164.8+31.1 to the Deep Sky Gallery.
23, 24 Jan 2007 Added new Main Belt discovery 2007 BC3 to the Ephemerides and the Minor Planet Discovery Circumstances pages. Added/updated page listing upcoming opposition dates for Great Shefford Minor Planet discoveries.
21 Jan 2007 Added new Main Belt discovery 2007 AN9 to the Ephemerides and the Minor Planet Discovery Circumstances pages.
8 Jan 2007 Corrected details & external URL for MPC observatories 480 and 502 on Location Map page.  Updated details on Ephemerides and the Minor Planet Discovery Circumstances pages following the recent numbering of 2005 TW49 as (147833). Added home page 'cover' image archive with link from bottom of home page.
1 Jan 2007 Added observing statistics totals for the year of 2006.
17 Dec 2006 Added new Main Belt discoveries 2006 XY4 and 2006 XZ4 to the Ephemerides and the Minor Planet Discovery Circumstances pages.
14 Dec 2006 Updated Closest Observed Approaches of NEOs to Earth with details of 2006 WV. Updated details on Ephemerides and the Minor Planet Discovery Circumstances pages following the recent numbering of 2006 GP3 as (145535).
2 Dec 2006 Added new Main Belt discoveries 2006 WJ4, 2006 WE29 and 2006 WU129 to the Ephemerides and the Minor Planet Discovery Circumstances pages.
7 Nov 2006 Added new Main Belt discovery 2006 VP1 to the Ephemerides page.
30 Oct 2006 Added 2006 UT215 to the non-principal designations table on the Minor Planet Discovery Circumstances page.
28 Oct 2006 Added Comet P/2006 U1 (LINEAR) to the Comet Gallery.
27 Oct 2006 Added two images of Comet P/2006 T1 (Levy) passing galaxy NGC 3521, guided and unguided, to the P/2006 T1 (Levy) page in the Comet Gallery and linked to the Deep Sky Gallery.
18, 23 Oct 2006 Added links to 1 and 5+ year observability charts for minor planets on the Ephemerides page, generated using the Lowell Observatory Asteroid Observation Chart Builder tool. Updated recent details on the Minor Planet Discovery Circumstances page.
15 Oct 2006 Updated Comet C/2006 A1 (Pojmanski) with image from 2006 Sep 7 in the Comet Gallery.
10 Oct 2006 Added Comet C/2006 M4 (SWAN) to the Comet Gallery, changed designation of comet C/2006 T1 (Levy) to periodic comet designation P/2006 T1.
5 Oct 2006 Added images of Comet C/2006 T1 (Levy) from 04 Oct 2006 to the C/2006 T1 page. Added new Main Belt discoveries 2006 TX, 2006 TY, 2006 TZ and 2006 TY6 to the Ephemerides and the Minor Planet Discovery Circumstances pages.
3 Oct 2006 Added Comet C/2006 T1 (Levy) to the Comet Gallery.
28 Sep 2006 Updated Closest Observed Approaches of NEOs to Earth with details of 2006 QM111.Updated Observatory lat./long.on Location page.
24 Sep 2006 Added Meetings page to the main navigation, including four supernova discoverers page, IHW Astrometry net 1984 group photo page and a link to the presentation Direct determination of NEO distance by parallax as delivered by Monty Robson and Peter Birtwhistle at MACE 2006 in Vienna on 12 May 2006 (make sure "Notes" are selected so that dialogue can be followed). The same link also added to the Direct Distance Measurement of NEOs by Parallax page. Updated GS697A and added GS61LA to the Artificial Satellite MPEC list in the Artificial Satellite Gallery
11 Sep 2006 Added Artificial Satellite MPEC list (elements and ephemerides) to the Artificial Satellite Gallery
30 Aug 2006 Added Comet 112P (Urata-Niijima) to the Comet Gallery.
28 Aug 2006 Added image of Comet 177P (Barnard) from 2006 Aug 21 to the Comet Gallery.
5 Aug 2006 Added Comet P/2006 HR30 (Siding Spring) to the Comet Gallery.
4 Aug 2006 Added Comet 102P (Shoemaker) to the Comet Gallery.
24 July 2006 Updated Closest Observed Approaches of NEOs to Earth with details of 2006 OK3.
23 July 2006 Added Comet 177P (Barnard) to the Comet Gallery.
24 June 2006 Added Comet C/2006 M1 (LINEAR) to the Comet Gallery.
11 June 2006 Replaced images of 73P-C/Schwassmann-Wachmann from 20 Mar 2006 and 73P-B from 02 Apr 2006 and 04 Apr 2006 with DDP processed versions, revealing more inner coma detail.
6 June 2006 Minor updates to the Location and History pages.
29 May 2006 Added images taken on 06 May 2006 of fragments 73P-AP and 73P-BC to the continuation page of Comet 73P/Schwassmann-Wachmann in the Comet Gallery and component 73P-C from 11 May 2006 to the main 73P/Schwassmann-Wachmann page.
27 May 2006 Replaced some out of date weather links on the Moon etc. page and added various other weather links, including a clear sky clock for the Great Shefford area. Added Sun and Moon rising/setting times from WeatherUnderground to the foot of each page.
25 May 2006 Added Interlaced Stacking to the Stacking Techniques pages in the Methods section. Updated next apparition details for some objects on the Ephemerides page.
21 May 2006 Updated 73P images with recently named fragments 73P-BO, BP & BQ on the continuation page for Comet 73P/Schwassmann-Wachmann in the Comet Gallery.  Replaced the Equipment page with details of the 16" Meade LX200GPS telescope and Apogee Alta U47+ CCD. The previous page with details of 12" LX200GPS and Apogee AP47p CCD in use from 2002-2005 is now available here.
20 May 2006 Added images taken on 11 May 2006 of the debris trail from component B to the Comet 73P/Schwassmann-Wachmann page in the Comet Gallery
18 May 2006 Changed home page picture to an image from MACE 2006 in Vienna. Fixed a problem with the Contact Us page that had prevented messages being sent to Great Shefford Observatory webmaster since the change of domain to www.birtwhistle.org on 7 Mar 2006.
7 May 2006 Added images of the inner coma and debris trail from component B to the Comet 73P/Schwassmann-Wachmann page in the Comet Gallery
1 May 2006 Added images of 8 fragments near H & N from Apr 28 and 30 to a continuation page for Comet 73P/Schwassmann-Wachmann in the Comet Gallery
19 Apr 2006 Added animation of fragments M & N from Apr 18 (showing split of fragment N) to the Comet 73P/Schwassmann-Wachmann page in the Comet Gallery
14 Apr 2006 Added new Main Belt discovery 2006 GQ3 and probable Hilda type Minor Planet discovery 2006 GS3 to the Ephemerides and the Minor Planet Discovery Circumstances pages.
11 Apr 2006 Added 17 day animation of fragments H, M & N to the Comet 73P/Schwassmann-Wachmann page in the Comet Gallery. Added new Main Belt discovery 2006 GP3 to the Ephemerides and the Minor Planet Discovery Circumstances pages.
9 Apr 2006 Added new Main Belt discoveries 2006 GD1, 2006 GZ1, 2006 GA2 and 2006 GG2 to the Ephemerides and the Minor Planet Discovery Circumstances pages. Added 2002 GH85 = 2005 FE35 to the list of discoveries with non-principal designations.
4 Apr 2006 Added component B & P to the Comet 73P/Schwassmann-Wachmann page in the Comet Gallery.
30 Mar 2006 Updated orbit details of Comet P/2006 F1 (Kowalski) including close approach to Jupiter in Jan 2003.
27 Mar 2006 Added Comet C/2006 F1 (Kowalski) to the Comet Gallery
24 Mar 2006 Added Comet 73P/Schwassmann-Wachmann to the Comet Gallery. Updated details for recent discoveries on Ephemerides page and also the recent numbering of 2004 OJ9 as (128465), also updated on 2004 OH9, 204 OJ9, 2004 PN2, 2004 PO95 page.
11 Mar 2006 Updated Closest Observed Approaches of NEOs to Earth with details of 2006 EC. Added new Main Belt discovery 2006 EN45 to the Ephemerides and the Minor Planet Discovery Circumstances pages. Removed last updated dates of Results on MPECs, IAUCs and observing statistics and summarised into new table at top of What's New page.
7 Mar 2006 Added Comet C/2006 A1 (Pojmanski) to the Comet Gallery. Added new Main Belt discoveries 2006 EN, 2006 EQ and 2006 EJ1 to the Ephemerides and the Minor Planet Discovery Circumstances pages. Great Shefford Observatory web site moved from birtwhi.demon.co.uk domain to birtwhistle.org.
25 Feb 2006 Updated Closest Observed Approaches of NEOs to Earth with details of 2006 DD1.
23 Feb 2006 Added new Main Belt discovery 2006 DH to the Ephemerides and the Minor Planet Discovery Circumstances pages.
7 Feb 2006 Added close approach NEO 2006 BV39 to the Asteroid Gallery and updated the diagram of Closest Observed Approaches to include it and other recent NEOs. Updated several next apparition details on the Ephemerides page.
23 Jan 2006  Revised Links page, including adding Emil Neata's Night Sky Info and MPC's NEAObs. Updated several next apparition details on the Ephemerides page and UCAC2 status on the Software page.
2 Jan 2006 Added observing statistics totals for the year of 2005.
26 Dec 2005 Added new Main Belt discovery 2005 YA to the Ephemerides and the Minor Planet Discovery Circumstances pages.
17 Dec 2005 Added Searching using NEOCP Variant Orbits to the Stacking Techniques page. Added new Main Belt discovery 2005 WN60 to the Ephemerides and the Minor Planet Discovery Circumstances pages and updated several next apparition details.
4 Dec 2005 Added new Main Belt discoveries 2005 WQ57 , 2005 WR57 and 2005 WU57 to the Ephemerides and the Minor Planet Discovery Circumstances pages.
29 Nov 2005 Added close approach of 2005 WN3 to the Asteroid Gallery
17 Nov 2005 Added new Main Belt discoveries 2005 VJ7 and 2005 VW7 to the Ephemerides and the Minor Planet Discovery Circumstances pages.
9 Nov 2005 Added new Main Belt discovery 2005 VV2 to the Ephemerides and the Minor Planet Discovery Circumstances pages and also added a table of non-principal designations to the latter. Added new columns [G] and [H] to the observing statistics for October 2005.
1 Nov 2005 Added close approach of 2005 UW5 to the Asteroid Gallery. Added new Main Belt discoveries 2005 UZ6, 2005 UA7 and 2005 UB7 to the Ephemerides and the Minor Planet Discovery Circumstances pages.
29 Oct 2005 Removed 2005 US3 from the Ephemerides and the Minor Planet Discovery Circumstances pages after linking to (principle designation) 2001 QD252.
28 Oct 2005 Added new Main Belt discoveries 2005 UR3 and 2005 US3 to the Ephemerides and the Minor Planet Discovery Circumstances pages.
21 Oct 2005 Added Planetary Satellites and Mars & Deimos page to the Gallery. Updated uncertainty figures on the Ephemerides page.
11 Oct 2005 Added new Main Belt discoveries 2005 SO134, 2005 TV49 and 2005 TW49 to the Ephemerides and the Minor Planet Discovery Circumstances pages.
29 Sep 2005 Added new Main Belt discoveries 2005 SW21 and 2005 SX21 to the Ephemerides and the Minor Planet Discovery Circumstances pages. Minor changes made to home page and Equipment page.
28 Sep 2005 Added new Main Belt discoveries 2005 SR19 and 2005 SS19 to the Ephemerides and the Minor Planet Discovery Circumstances pages. 
15 Sep 2005 Added 2005 RV24 & NGC 7009 (Saturn Nebula) to the Deep Sky Gallery
6 Sep 2005 Added North Observatory, Clanfield (J69) to the local observatories Location Map. Updated next apparition details for recent discovery 2005 PZ4 on the Ephemerides page.
20 Aug 2005 Added a 7 day animation to the comet P/2002 EX12 (NEAT) page in the Comet Gallery.
19 Aug 2005 Added new Main Belt discovery 2005 PZ4 to the Ephemerides and the Minor Planet Discovery Circumstances pages.
16 Aug 2005 Added 2003 UB313 to the Asteroid Gallery.
2 Aug 2005 Added comet P/2002 EX12 (NEAT) to the Comet Gallery.
22 Jul 2005 Added comet C/2005 N1 (Juels-Holvorcem) to the Comet Gallery
14 Jul 2005 Added comet C/2005 N5 (CATALINA) to the Comet Gallery
7 Jul 2005 Added image of SN 2005cs from 6 July 2005 to Supernova 2005cs page in Supernova Gallery. Added PoleAlignMax to the Software page.
1 Jul 2005 Added Supernova 2005cs to Supernova Gallery. Updated First Light and Equipment Upgrade June 2005 pages.
26 Jun 2005 Following the installation of a new 16" telescope updated Equipment Upgrade June 2005 page.
11 Jun 2005 Updated next apparition details for 2005 GZ60 and 2004 DN25on the Ephemerides page.
9 Jun 2005 Updated Equipment Upgrade June 2005 page and added Shutter latency details on Equipment page.
5 Jun 2005 Added Equipment Upgrade June 2005 page.
30 May 2005 Updated 2004 DN25 page with second apparition recovery details.
19 May 2005 Added comet C/2005 K1 (Skiff) to the Comet Gallery. Updated the recovery page of 2003 NZ6.
6 May 2005 Added Met Office latest infrared satellite image and the Theyr cloudcast to the Moon etc. page.
21 Apr 2005 Changed image of Great Shefford Observatory on home page. Updated next apparition details for 2005 GZ60 on the Ephemerides page.
13 Apr 2005 Added new Main Belt Discovery 2005 GZ60 to the Ephemerides page and to the Minor Planet Discovery Circumstances page. Updated next apparition details for recent discoveries on the Ephemerides page.
4 Apr 2005 Updated next apparition details for recent discoveries on the Ephemerides page.
16 Mar 2005 Added new Main Belt Discovery 2005 EJ222 to the Ephemerides page and to the Minor Planet Discovery Circumstances page..
7 Mar 2005 Updated Direct Distance Measurement of NEOs by Parallax after visit by Dr Jeff Tarvin to Great Shefford. Added new Main Belt Discovery 2005 EF30 to the Ephemerides page and to the Minor Planet Discovery Circumstances page.
4 Mar 2005 Added four new Main Belt Discoveries (found in the same field while recovering 2003 TQ3 at its second apparition) to the Ephemerides page and the Minor Planet Discovery Circumstances page. Added next apparition data to Ephemerides page. 
13 Feb 2005 Added Uncertainty Maps & Variant Orbits to the Stacking Techniques  part of the Methods section. Added comet C/2004 U1 to the Comet Gallery (originally prepared 24 Oct 2004).
29 Jan 2005 Added discovery circumstances page for 2005 AH and 2005 AJ (note: page contains ~400k image) and added a Discovery Circumstances page to the Results page.
22 Jan 2005 Added new Shefford main belt discovery 2005 AD46 to Ephemerides page.
6 Jan 2005 Added new Shefford main belt discoveries 2005 AH and 2005 AJ to Ephemerides page. Updated the first Shefford discovery 2003 NL8 with recovery images
2 Jan 2005 Updated observing statistics with totals for 2004. Amended baseline distance and contact details on Direct Distance Measurement of NEOs by Parallax page.
30 Dec 2004 Added Direct Distance Measurement of NEOs by Parallax to the Methods page.
27 Dec 2004 Added 2004 MN4 to the Asteroid Gallery, updated Results 2004 Jul-Dec MPECs and added column to Statistics page (Time CCD exposing)
8 Dec 2004 Added comet P/2004 WR9 to the Comet Gallery.
5 Dec 2004 Added link to Metcheck 48 hour cloudcast  forecast on Moon etc. page
25 Nov 2004 Updated the MPC Listed Observatories Location map.
18 Nov 2004 Added new Shefford main belt discovery 2004 VD70 to Ephemerides page.
16 Nov 2004 Added new Shefford main belt discoveries 2004 VM64 and 2004 VK65 to Ephemerides page. Amended name of P/2003 YM159 to P/2004 V5.
11 Nov 2004 Added split comet P/2003 YM159 to the Comet Gallery.
7 Nov 2004 Added the first of several pages on Track & Stack techniques for Astrometrica. Updated some links on Results page.
13 Oct 2004 Updated external link on 2002 AA29 page
12 Sep 2004 Added a further image of C/2004 Q2 (Machholz) to the Comet Gallery and new Shefford main belt discovery 2004 RF to Ephemerides page. Added Site Map to Navigation bar.
2 Sep 2004 Removed Great Shefford weather forecasts from the Moon etc page (functionality removed by provider).
28 Aug 2004 Added C/2004 Q1 (Tucker) and C/2004 Q2 (Machholz) to the Comet Gallery.
24 Aug 2004 Added C/2004 P1 (NEAT) to the Comet Gallery.
21 Aug 2004 Added new Shefford main belt discoveries 2004 OH9, 204 OJ9, 2004 PN2, 2004 PO95 page and to Ephemerides page.
6 Aug 2004 Updated the Equipment page with details of ADSL coming to Great Shefford and the effect on precise timekeeping.
29 Jul 2004 Added new Shefford main belt discoveries 2004 OH9 and 2004 OJ9 to the Ephemerides page.
19 Jul 2004 Added 2004 OD4 to the Asteroid gallery.
10 Jul 2004 Made minor changes to Methods page. Added Great Shefford weather forecasts to Moon etc.
9 Jul 2004 Added 2004 MC to the Asteroid gallery including details of visit from Juan Lacruz, 
4 Jul 2004 Added C/2004 K3 (LINEAR) to the Comet Gallery
17 Jun 2004 Added 2004 LA10 to the Asteroid gallery, added image to C/2003 K4 (LINEAR) page on the Comet Gallery.
28 Apr 2004 Added 2004 GC19 to the Asteroid Gallery. Updated Dimension4 (version 4.5) details on software page..
16 Apr 2004 Added 2004 FY31 to the Asteroid Gallery. Added Comet P/2004 F3 (NEAT) to the Comet Gallery
28 Mar 2004 Added 2004 FK5 to the Asteroid Gallery.
27 Mar 2004 Added 2004 DW, 2004 EL20 and 2004 ER21 to the Asteroid Gallery.
5 Mar 2004 Added Great Shefford's fourth minor planet discovery 2004 DN25 to the Asteroid Gallery.
3 Mar 2004 Added 2004 CZ1 to the Asteroid Gallery.
2 Mar 2004 Added pages for 2004 DF2,  2004 DA53 and 2000 EV70 to the Asteroid Gallery. Changed 7 Feb 2004 image of C/2002 T7 from positive to negative. Added new Shefford discovery 2004 DN25 and recently named 65100 to the Ephemerides page
12 Feb 2004 Added page for 2004 CQ to the Asteroid Gallery. Added an image of C/2002 T7 from 7 Feb 2004, added page for man-made satellite GS428A
2 Feb 2004 Added page for 2004 AS1 to the Asteroid Gallery. Added observing statistics totals for 2004.
20 Jan 2004 Added First Light at Great Shefford to the home page, added (3184) Raab and NGC 3628 to the Deep Sky Gallery..
11 Jan 2004 Added further image of C/2002 T7 from January 11 to the Comet Gallery and added images of 2003 YG118 to the Asteroid gallery and the Deep Sky Gallery
3 Jan 2004 Added further image of C/2002 T7 from December 17 to the Comet Gallery.
25 Dec 2003 Added a further image of Comet P/2003 T1=157P/Tritton to the Comet Gallery.
17 Dec 2003 Added image of Comet P/2003 XD10 to the Comet Gallery.
13 Dec 2003 Added image of Apollo 2003 XH10 and updated 2003 XJ7 on the Asteroid Gallery.
11 Dec 2003 Added image of Apollo 2003 XJ7 to the Asteroid Gallery.
3 Dec 2003 Added image of Aten 2003 WT153 to the Asteroid Gallery. Added details of Minor Planet Checker and New Object Ephemeris Generator to the LINKS page.
29 Nov 2003 Added further image of C/2002 T7 to the Comet Gallery.
21 Nov 2003 Added images of C/2002 T7 to the Comet Gallery.
20 Nov 2003 Added images of C/2003 S3 and P/2003 O3 to the Comet Gallery. Added images of IMP-8 and article by Reiner Stoss to the Satellite Gallery.
6 Nov 2003 Added image of 2003 TQ3 to the Asteroid Gallery.
1 Nov 2003 Added images of Atens 2003 UT55 and 2003 RU11 to the Asteroid Gallery.
26 Oct 2003 Added further images of P/2003 T1 to the Comet Gallery
24 Oct 2003 Added images of comets C/2003 T4 and C/2003 U1 to the Comet Gallery
22 Oct 2003 Added image of comet 2P/Encke to the Comet Gallery, added Great Shefford's third asteroid discovery (2003 TQ3) to the Ephemerides page.
19 Oct 2003 Added image of fade of comet P/2003 T1 to the Comet Gallery
12 Oct 2003 Added image of comet P/2003 T1 to the Comet Gallery. Updated Software (FocusMax).
2 Oct 2003 Added images of Apollo 2003 SQ222 to the Asteroid Gallery.
1 Oct 2003 Added images from 29 and 30 September of Apollo 2003 SM215 to the Asteroid Gallery.
29 Sep 2003 Added image of Apollo 2003 SM215 to the Asteroid Gallery.
27 Sep 2003 Added image of Apollo 2003 SR84 to the Asteroid Gallery.
25 Sep 2003 Added image of comet P/2003 S2 (NEAT) to the Comet Gallery.
24 Sep 2003 Added image of comet P/2003 S1 (NEAT) to the Comet Gallery
20 Sep 2003 Added Great Shefford's second Discovery of 2003 RV10 to Asteroid Gallery. Added a page to generate ephemerides from the MPC. Software page (UCAC2).updated.
12 Sep 2003 Added Discovery of 2003 NL8 to Asteroid Gallery. Added page on Moon (and how to avoid it).
6 Sep 2003 Added M35 & 2003 QC10 to the Asteroid Gallery and  Deep Sky Gallery. Minor changes to text on NGC 6992 & 2003 MK4 page.
5 Sep 2003 Added images of P/2002 T6 to the Comet Gallery.
25 Aug 2003 Animation of 2003 QB30 added to the Asteroid Gallery.
20 Aug 2003 Added images of Supernovae 2003 gw in UGC 3252 and 2003 gx in MGC +06-3-7 to the Supernova Gallery. Added an image of P/2003 O3 to the Comet Gallery.
17 Aug 2003 Added images of Supernovae 2003 gu in UGC 12331 and 2003 hc in UGC1993 to the Supernova Gallery. Added an image of C/2003 O1 to the Comet Gallery.
10 Aug 2003 Added an image of P/2003 O2 and flat coma profile to Comet Gallery, added Supernova Gallery and image of 2003 gd in M74 to the Supernova Gallery.
7 Aug 2003 Added a personal account of the 2003 close approach of the Aten 2003 NZ6 to the Asteroid Gallery
5 Aug 2003 Added montage of P/2003 O3 to Comet Gallery, fixed broken link on Methods page.
4 Aug 2003 Added image of 2P/Encke to Comet Gallery.
1 Aug 2003 Added close ups of C/2003 O2 (LINEAR)'s diffuse coma to Comet Gallery.
31 July 2003 Added image of C/2003 O2 (LINEAR) to Comet Gallery.
28 July 2003 Results Jul-Dec 2003 MPECs updated
27 July 2003 Added Jul 14 2003 image of C/2001 K5 to Comet Gallery
25 July 2003 Added comet images of P/2003 A1, P/2003 CP7, C/2003 E1, C/2003 F1, P/2003 F2, C/2003 G1, C/2003 G2, C/2003 H1, C/2003 H2, C/2003 H3, P/2003 H4, C/2003 K1, P/2003 KV2, C/2003 K4 to Comet gallery.
21 July 2003 Added animation of C/2003 O1 to Comet Gallery.

18 July 2003

'Best Deep Sky image' added.

11 July 2003

2003 LP6 added to Asteroid gallery.

5 July 2003

Web site created

Home Whats New Location Equipment Software Methods Results  
Gallery Links Ephemerides Moon Meetings Contact Us Site map

Copyright 2003 - 2017 Great Shefford ObservatoryFind more about Weather in Lambourn, UK