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Hydra the Water Snake – Myths and Stars *revised* #933389 11/18/20 11:30 AM
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Mona - Astronomy Online Content OP
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What links the biggest constellation in the sky with the flag of Brazil? Why is the star V Hydrae bright red? How did the hero Hercules vanquish a nine-headed monster?

Hydra the Water Snake – Myths and Stars


Mona Evans
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Re: Hydra the Water Snake – Myths and Stars *revised* [Re: Mona - Astronomy] #933398 11/19/20 04:11 PM
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The constellation isn't always depicted as a water snake. Hydra could also be the nine-headed serpent killed by the hero Hercules with the help of Iolaus. The vase is dated 450-500 B.C. and is in the collections of the Regional Archaeological Museum Antonio Salinas, Palermo.


Mona Evans
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Re: Hydra the Water Snake – Myths and Stars *revised* [Re: Mona - Astronomy] #933405 11/20/20 03:47 PM
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Stars are different colors. We can even see some colors with our unaided eyes. Orion's stars, for example, include a reddish Betelgeuse and a noticeably blue Rigel. But binoculars and telescopes help to reveal color. Many stars like red giant Betelgeuse tend to look orange. But there are carbon stars that are a deep red. V Hydrae is such a star.

I couldn't find a good picture of V Hydrae, but here is R Leporis in the constellation Lepus photographed by Joseph Brimacombe.

[Linked Image from skyandtelescope.org]


Mona Evans
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