IAU and Sky & Telescope magazine (Roger Sinnott & Rick Fienberg)
Hydra
The Hydra
OriginAncient
AbbreviationHya
GenitiveHydrae
Pronunciation/ˈhaɪdrə/ genitive /ˈhaɪdriː/
HIGH-druh
LocationCelestial Equator
Primary StarAlphard (α Hya)
Right Ascention 9h 28m Declination -8° 40'
Martian Solar Lag δ(🜨→♂) +0.272 h (16.3 min)
Hydra represents the Lernaean Hydra, a reptilian monster so vile that even its breath and blood were highly poisonous. It had nine serpent heads, eight mortal and one immortal. Every time one was cut off two would grow in its place. Defeating the Lernaean Hydra was the second labor assigned to Hercules by King Eurystheus. In the marshes of Lerna, Hercules drew out the Hydra from its lair, and with his mighty club, bashed one of its heads in. In its place, two heads sprouted, just as mean and deadly as the original. He realized he would need to take a different approach. He had his nephew Iolaus quickly cauterize each stump after it was bashed in. This prevented the heads from growing back. Hercules did this with each of the mortal heads. He struck off the immortal head and buried it deep in the ground and placed a huge rock on top of it. With his second labor complete, he dipped the tips of his arrows into the blood of the Hydra, covering them with deadly poison. In a second myth involving Hydra, this constellation represents the snake that Corvus used in a lie to Apollo.
www.underthesky.com
Hydra as depicted by Johann Bayer in his Uranometria (1603). Source image provided by www.RareMaps.com — Barry Lawrence Ruderman Antique Maps Inc. Via www.underthenightsky.com.
←Hydra 1284→
SolPhoDeiTerVenJovSat
123
45678910
11121314151617
18192021222324
25262728
1 Hydra 1284 2 Hydra 1284 3 Hydra 1284 4 Hydra 1284 5 Hydra 1284 6 Hydra 1284 7 Hydra 1284 8 Hydra 1284 9 Hydra 1284 10 Hydra 1284 11 Hydra 1284 12 Hydra 1284 13 Hydra 1284 14 Hydra 1284 15 Hydra 1284 16 Hydra 1284 17 Hydra 1284 18 Hydra 1284 19 Hydra 1284 20 Hydra 1284 21 Hydra 1284 22 Hydra 1284 23 Hydra 1284 24 Hydra 1284 25 Hydra 1284 26 Hydra 1284 27 Hydra 1284 28 Hydra 1284 1 Corvus 1284 26 September 4026 27 September 4026 28 September 4026 29 September 4026 30 September 4026 1 October 4026 2 October 4026 3 October 4026 4 October 4026 5 October 4026 6 October 4026 7 October 4026 8 October 4026 9 October 4026 10 October 4026 11 October 4026 12 October 4026 13 October 4026 14 October 4026 15 October 4026 16 October 4026 17 October 4026 18 October 4026 19 October 4026 20 October 4026 21 October 4026 22 October 4026 23 October 4026 24 October 4026 25 October 4026
MS 711085 MS 711086 MS 711087 MS 711088 MS 711089 MS 711090 MS 711091 MS 711092 MS 711093 MS 711094 MS 711095 MS 711096 MS 711097 MS 711098 MS 711099 MS 711100 MS 711101 MS 711102 MS 711103 MS 711104 MS 711105 MS 711106 MS 711107 MS 711108 MS 711109 MS 711110 MS 711111 MS 711112 MS 711113 MD 730827 MD 730828 MD 730829 MD 730830 MD 730831 MD 730832 MD 730833 MD 730834 MD 730835 MD 730836 MD 730837 MD 730838 MD 730839 MD 730840 MD 730841 MD 730842 MD 730843 MD 730844 MD 730845 MD 730846 MD 730847 MD 730848 MD 730849 MD 730850 MD 730851 MD 730852 MD 730853 MD 730854 MD 730855 MD 730856