Neith is a hypothetical natural satellite of Venus reportedly sighted by Giovanni Cassini in 1672 and by several other astronomers in following years. It was 'observed' up to 30 times by astronomers until 1770, when there were no new sightings and it was not found during the transit of Venus in 1761 and 1769. [1][2]

2025年3月17日 · Which planets have moons, and which don’t? Let’s go in order from the Sun. Up first are Mercury and Venus. Neither of them has a moon. Because Mercury is so close to the Sun and its gravity, it wouldn’t be able to hold on to its own moon.

As it orbits the Sun, Venus displays phases like those of the Moon in a telescopic view. The planet appears as a small and "full" disc when it is on the opposite side of the Sun (at superior conjunction).

2025年1月22日 · Venus is the third brightest object in the sky after the Sun and Moon. Venus spins slowly in the opposite direction from most planets. Venus is similar in structure and size to Earth, and is sometimes called Earth's evil twin.

2024年3月4日 · Today, after countless studies and the accumulation of extensive telescopic data, the scientific consensus is clear: Venus is a moonless planet. This conclusion is backed by …

2014年4月23日 · The answer is no moons at all. That's right, Venus (and the planet Mercury) are the only two planets that don't have a single natural moon orbiting them.

2023年10月19日 · With the exception of Mercury and Venus, every planet of our solar system has at least one moon. So, before we get into a discussion about the unusual absence of moons on Mercury and Venus, let’s first look at how other planets fare when it comes to having moons.

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2006年10月10日 · A Mars-size body plowed into us, completely disrupting both bodies and splashing massive amounts of debris into orbit which, most astronomers agree, coalesced to form our Moon. But if something that large hit us, how did our nearest-neighbor planet, Venus, dodge the same fate? According to a new study, it didn't.

2006年10月10日 · One of biggest mysteries in the solar system is why Venus has no moon. A new model suggests that our sister planet may have in fact had a moon, but that it was destroyed. Earth's moon is...