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      | Minor Planet Occultations |  
      | (426) Hippo on 13 September 2025
        Hippo_PBirtwhistle.png) 
        The large main belt asteroid (426) Hippo – with a diameter estimated to 
		be about 138 km – was mag +13.5 and bright enough to be seen as a 
		fainter streak in the star trail as it passed in front of the mag +12.1 
		star in this 25 s drift-scan exposure. |  
    
      | Hippo_Scanalyzer_PBirtwhistle.png) 
		Screenshot of drift-scan measurement using Scanalyzer (see page by John 
		Broughton, Reedy Creek Observatory, Australia
		
		here). |  |