[meteorite-list] Earth Trojan asteroids
From: MexicoDoug_at_aol.com <MexicoDoug_at_meteoritecentral.com>
Date: Thu Jun 23 20:32:52 2005 Message-ID: <195.41cd1361.2fecae8c_at_aol.com> Hola Rob, Wouldn't that be <= 2/3's (gibbous) phase = about 66% illumination, and a maximum average sky angle of a comfortable,high 60 degrees max observed angle (+/- the "oscillation") ... checking they're equilateral triangles, though intuition might be wrong? Saludos, Doug En un mensaje con fecha 06/23/2005 6:21:15 PM Mexico Daylight Time, ROBERT.D.MATSON_at_saic.com escribe: Certainly astronomers have tried, but small objects at L4 and L5 would be hard to see due to a combination of range (150 million km), poorer phase angle, and a maximum sky elevation of perhaps 45 degrees at astronomical twilight -- lower when the sky is darker. It would be an interesting exercise to compute the maximum size an Earth Trojan could be and still have managed to go undetected. --Rob Received on Thu 23 Jun 2005 08:32:12 PM PDT |
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