This is the occultation of Mars by the Full Moon on December 7, 2022, in a composite showing the motion of Mars relative to the Moon. The motion here


This is the occultation of Mars by the Full Moon on December 7, 2022, in a composite showing the motion of Mars relative to the Moon. The motion here is from left to right. However, while this composite makes it look like Mars was doing the moving, it was really the Moon that was passing in front of Mars. But for this sequence I set the telescope mount to track the Moon at its rate of motion against the background stars and Mars, to keep the Moon more or less stationary on the frame while Mars and the background sky passed behind it. Mars was at opposition this night and so was the Moon, so the Moon was full and Mars was at its brightest for this appearance in 2022. The size of the Martian disk was 17 arc seconds across this night and its magnitude was Mars is twice the actual size of the Moon, but appears tiny here due to its greater distance — some 206 times farther away than the Moon. This night, the Moon was 397,000 kilometres away, near is apogee point, while Mars was 82 million kilometres away, a week after its closest approach.


Size: 5400px × 3656px
Photo credit: © Alan Dyer / VWPics / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: &, 130mm, 7, 2022, astro-physics, blend, canon, comparison, composite, conjunction, constellation, december, full, mars, moon, occultation, opposition, path, planet, r5, red, sequence, stars, telescope