Oleg Zabluda's blog
Tuesday, May 22, 2012
 
International Space Station (ISS) transits the Moon, taken from Avranches (Normandy, France) a few hours before the...
International Space Station (ISS) transits the Moon, taken from Avranches (Normandy, France) a few hours before the eclipse, on December 20th, 2010 at 21:34 UT.

Transit duration: 0.55s. ISS distance to observer: 424 km. Speed in orbit: 7.5 km/s. ISS is 100m across, the Moon is 385,000 km (900x farther), 3500 km across, and goes at 1 km/s. Projection of ISS on the Moon is 0.108*900=100 km across. This helps you gauge the size of lunar features.

Meade 10" ACF on Takahashi EM400, Canon 5D mark II. 1/2000s exposure at 1600 iso.

Transit forecast calculated by http://www.calsky.com/
http://legault.perso.sfr.fr/eclipse101221_lunar_transit.html
http://legault.perso.sfr.fr/eclipse101221_lunar_transit.html

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