August 14 – 111 Ate and three new Neptunian Moons

Asteroid 111 Ate was discovered by C H F Peters on August 14th 1870.  It is a main-belt asteroid, named after the Greek goddess of mischief and destruction.  Being a Port Vale supporter I am familiar with her work.  Ate is a C-type asteroid, and at an estimated 143 km in diameter, it is one of the larger.

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Neptune’s moons Neso, Halimede and Sau were also discovered on this day, in 2002.  As with Laomedeia (see yesterday’s post), they were all named after the Nereids of Greek mythology.

Neso is abount 60 km in diameter, and is the outermost of Neptune’s irregular satellites. Neso is thought to be the remnant of a larger body.

Halimede is a grey moon, 62 km across, and possibly a remnant from a collision involving the moon Nereid.

Sau is smaller, at about 42 km in diameter, and has a very inclined orbit.

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