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 176→
SolPhoDeiTerVenJovSat
12345
6789101112
13141516171819
20212223242526
2728
1 Hydra 176 2 Hydra 176 3 Hydra 176 4 Hydra 176 5 Hydra 176 6 Hydra 176 7 Hydra 176 8 Hydra 176 9 Hydra 176 10 Hydra 176 11 Hydra 176 12 Hydra 176 13 Hydra 176 14 Hydra 176 15 Hydra 176 16 Hydra 176 17 Hydra 176 18 Hydra 176 19 Hydra 176 20 Hydra 176 21 Hydra 176 22 Hydra 176 23 Hydra 176 24 Hydra 176 25 Hydra 176 26 Hydra 176 27 Hydra 176 28 Hydra 176 1 Corvus 176 1 March 1942 2 March 1942 3 March 1942 4 March 1942 5 March 1942 6 March 1942 7 March 1942 8 March 1942 9 March 1942 10 March 1942 11 March 1942 12 March 1942 13 March 1942 14 March 1942 15 March 1942 16 March 1942 17 March 1942 18 March 1942 19 March 1942 20 March 1942 21 March 1942 22 March 1942 23 March 1942 24 March 1942 25 March 1942 26 March 1942 27 March 1942 28 March 1942 29 March 1942
MS -29713 MS -29712 MS -29711 MS -29710 MS -29709 MS -29708 MS -29707 MS -29706 MS -29705 MS -29704 MS -29703 MS -29702 MS -29701 MS -29700 MS -29699 MS -29698 MS -29697 MS -29696 MS -29695 MS -29694 MS -29693 MS -29692 MS -29691 MS -29690 MS -29689 MS -29688 MS -29687 MS -29686 MS -29685 MD -30548 MD -30547 MD -30546 MD -30545 MD -30544 MD -30543 MD -30542 MD -30541 MD -30540 MD -30539 MD -30538 MD -30537 MD -30536 MD -30535 MD -30534 MD -30533 MD -30532 MD -30531 MD -30530 MD -30529 MD -30528 MD -30527 MD -30526 MD -30525 MD -30524 MD -30523 MD -30522 MD -30521 MD -30520