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 1082→
SolPhoDeiTerVenJovSat
1234567
891011121314
15161718192021
22232425262728
1 Hydra 1082 2 Hydra 1082 3 Hydra 1082 4 Hydra 1082 5 Hydra 1082 6 Hydra 1082 7 Hydra 1082 8 Hydra 1082 9 Hydra 1082 10 Hydra 1082 11 Hydra 1082 12 Hydra 1082 13 Hydra 1082 14 Hydra 1082 15 Hydra 1082 16 Hydra 1082 17 Hydra 1082 18 Hydra 1082 19 Hydra 1082 20 Hydra 1082 21 Hydra 1082 22 Hydra 1082 23 Hydra 1082 24 Hydra 1082 25 Hydra 1082 26 Hydra 1082 27 Hydra 1082 28 Hydra 1082 1 Corvus 1082 12 September 3646 13 September 3646 14 September 3646 15 September 3646 16 September 3646 17 September 3646 18 September 3646 19 September 3646 20 September 3646 21 September 3646 22 September 3646 23 September 3646 24 September 3646 25 September 3646 26 September 3646 27 September 3646 28 September 3646 29 September 3646 30 September 3646 1 October 3646 2 October 3646 3 October 3646 4 October 3646 5 October 3646 6 October 3646 7 October 3646 8 October 3646 9 October 3646 10 October 3646 11 October 3646
MS 576030 MS 576031 MS 576032 MS 576033 MS 576034 MS 576035 MS 576036 MS 576037 MS 576038 MS 576039 MS 576040 MS 576041 MS 576042 MS 576043 MS 576044 MS 576045 MS 576046 MS 576047 MS 576048 MS 576049 MS 576050 MS 576051 MS 576052 MS 576053 MS 576054 MS 576055 MS 576056 MS 576057 MS 576058 MD 592021 MD 592022 MD 592023 MD 592024 MD 592025 MD 592026 MD 592027 MD 592028 MD 592029 MD 592030 MD 592031 MD 592032 MD 592033 MD 592034 MD 592035 MD 592036 MD 592037 MD 592038 MD 592039 MD 592040 MD 592041 MD 592042 MD 592043 MD 592044 MD 592045 MD 592046 MD 592047 MD 592048 MD 592049 MD 592050