Why does Mercury have no moon?

Mercury and Venu. 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. Any moon would most likely crash into Mercury or maybe go into orbit around the Sun and eventually get pulled into it.

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Also, what are the 6 dwarf planets?

Currently, there are six dwarf planets officially designated by the IAU: Pluto, Ceres, Eris, Makemake, Haumea, and 2015 RR245, discovered in July. What color is Pluto now? Pluto's visual apparent magnitude averages 15.1, brightening to 13.65 at perihelion. In other words, the planet has a range of colors, including pale sections of off-white and light blue, to streaks of yellow and subtle orange, to large patches of deep red.

Correspondingly, what is hydra in space?

Hydra is a natural satellite of Pluto, with a diameter of approximately 51 km (32 mi) across its longest dimension. Hydra was discovered along with Nix by astronomers using the Hubble Space Telescope on , and was named after the Hydra, the nine-headed underworld serpent in Greek mythology. Is there water on Pluto? 2. There's probably a vast, liquid, water ocean sloshing beneath Pluto's surface. Gathered ices may not be the only thing that helped reorient Sputnik Planitia.

Consequently, when was the last time saturn and pluto were conjunct in capricorn?

Moreover, how often do saturn and pluto conjunct? Every occurrence of Saturn ? Pluto conjunction is a relatively rare event that happens approximately every 33?38 years and lasts slightly over two years. Saturn ? Pluto conjunction can be seen as a "global Saturn return" or karmic nature that applies to the whole world.