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

Deep Sky Gallery

Aten asteroid 2007 HA passing irregular galaxy NGC 4449 in Canes Venatici

2007 HA was discovered by the LINEAR project at 8am on 16 April 2007, just 26 hours before passing the Earth at 6.5 Lunar Distances.

Already magnitude +13 at discovery and moving at 65"/min north, it brightened to 12th magnitude the same day and reached a speed of 100"/min at closest approach. It was observed for less than 6 days and was last reported on 21 April 2007 when it had faded to magnitude +18 and had slowed down to a more sedate speed of 8"/min.

2007 HA takes just 10 months to orbit the Sun and is estimated to be between 150 - 470 metres in diameter.


 

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