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An undiscovered moon orbiting the planet was hypothesized to exist in the early 1970s, but it turned out to be misinterpreted data from the star 31 Crateris. [1] Observation of a moon of Mercury from Earth would be difficult because Mercury is relatively close to the Sun. [2] For example, Mercury was not observed in the infrared spectrum until ...
The Moon ☾ Near-Earth objects ... Location of the Solar System. From largest to smallest structure: Universe; ... Physical characteristics of Mercury Structure of ...
Kuiper is a moderate-size crater with a central peak cluster located at on Mercury It is 62 kilometers in diameter and was named after Dutch-American astronomer Gerard Kuiper in 1976. [ 1 ] It is one of only 2 Mercurian craters which are named not after artists, [ 2 ] and one of very few cases when the same name is used for 3 craters (there are ...
The peak falls on the night of Saturday, May 4, into the early hours of Sunday, May 5. The best time to view the event is between 2 a.m. and 5 a.m., local time, on Sunday.
A spacecraft has beamed back some of the best close-up photos ever of Mercury’s north pole. The European and Japanese robotic explorer swooped as close as 183 miles (295 kilometers) above ...
The English proper name for Earth's natural satellite is typically written as Moon, with a capital M. [19] [20] The noun moon is derived from Old English mōna, which stems from Proto-Germanic *mēnōn, [21] which in turn comes from Proto-Indo-European *mēnsis 'month' [22] (from earlier *mēnōt, genitive *mēneses) which may be related to the verb 'measure' (of time).
It is slightly more massive than the second most massive moon, Saturn's satellite Titan, and is more than twice as massive as the Earth's Moon. It is larger than the planet Mercury, which has a diameter of 4,880 kilometres (3,030 mi) but is only 45 percent of Mercury's mass. Ganymede is the ninth-largest object in the solar system, but the ...
Mercury retrograde refers to the period of time when Mercury moves slower than the Earth around the sun – causing it to appear to spin backward in the night sky.