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 1026→
SolPhoDeiTerVenJovSat
123456
78910111213
14151617181920
21222324252627
28
1 Hydra 1026 2 Hydra 1026 3 Hydra 1026 4 Hydra 1026 5 Hydra 1026 6 Hydra 1026 7 Hydra 1026 8 Hydra 1026 9 Hydra 1026 10 Hydra 1026 11 Hydra 1026 12 Hydra 1026 13 Hydra 1026 14 Hydra 1026 15 Hydra 1026 16 Hydra 1026 17 Hydra 1026 18 Hydra 1026 19 Hydra 1026 20 Hydra 1026 21 Hydra 1026 22 Hydra 1026 23 Hydra 1026 24 Hydra 1026 25 Hydra 1026 26 Hydra 1026 27 Hydra 1026 28 Hydra 1026 1 Corvus 1026 4 May 3541 5 May 3541 6 May 3541 7 May 3541 8 May 3541 9 May 3541 10 May 3541 11 May 3541 12 May 3541 13 May 3541 14 May 3541 15 May 3541 16 May 3541 17 May 3541 18 May 3541 19 May 3541 20 May 3541 21 May 3541 22 May 3541 23 May 3541 24 May 3541 25 May 3541 26 May 3541 27 May 3541 28 May 3541 29 May 3541 30 May 3541 31 May 3541 1 June 3541 2 June 3541
MS 538588 MS 538589 MS 538590 MS 538591 MS 538592 MS 538593 MS 538594 MS 538595 MS 538596 MS 538597 MS 538598 MS 538599 MS 538600 MS 538601 MS 538602 MS 538603 MS 538604 MS 538605 MS 538606 MS 538607 MS 538608 MS 538609 MS 538610 MS 538611 MS 538612 MS 538613 MS 538614 MS 538615 MS 538616 MD 553539 MD 553540 MD 553541 MD 553542 MD 553543 MD 553544 MD 553545 MD 553546 MD 553547 MD 553548 MD 553549 MD 553550 MD 553551 MD 553552 MD 553553 MD 553554 MD 553555 MD 553556 MD 553557 MD 553558 MD 553559 MD 553560 MD 553561 MD 553562 MD 553563 MD 553564 MD 553565 MD 553566 MD 553567 MD 553568