Sigma and Hydrae
18 is the stars of the constellation hydra
i don't know ask some other search engine!
127
7
Charon, Nix and Hydra
The Hydra was not 'owned'; it was a monster spawned by Typhoeus and Ekhidna, as it was a adversary of Hercules, it was favored by Hera and put among the stars.
The Hydra constellation itself does not have a specific surface temperature, as it is a grouping of stars rather than a single celestial body. However, individual stars within Hydra can have varying surface temperatures depending on their types and stages of evolution. For example, the brightest star in Hydra, Alphard, has an approximate surface temperature of around 5,600 K. Temperatures of other stars in the constellation can range widely, from cooler red giants to hotter blue stars.
Stars use names based off of Greek mythology such as Ursa Major which means Big Bear. The common name for this constellation is the Big Dipper.
Ursa Major
Nunki. Alnasl.
yes 3 but many others are not major, I'm sorry i don't know the names.
blue white yellow red orange