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 1032→
SolPhoDeiTerVenJovSat
12345
6789101112
13141516171819
20212223242526
2728
1 Hydra 1032 2 Hydra 1032 3 Hydra 1032 4 Hydra 1032 5 Hydra 1032 6 Hydra 1032 7 Hydra 1032 8 Hydra 1032 9 Hydra 1032 10 Hydra 1032 11 Hydra 1032 12 Hydra 1032 13 Hydra 1032 14 Hydra 1032 15 Hydra 1032 16 Hydra 1032 17 Hydra 1032 18 Hydra 1032 19 Hydra 1032 20 Hydra 1032 21 Hydra 1032 22 Hydra 1032 23 Hydra 1032 24 Hydra 1032 25 Hydra 1032 26 Hydra 1032 27 Hydra 1032 28 Hydra 1032 1 Corvus 1032 17 August 3552 18 August 3552 19 August 3552 20 August 3552 21 August 3552 22 August 3552 23 August 3552 24 August 3552 25 August 3552 26 August 3552 27 August 3552 28 August 3552 29 August 3552 30 August 3552 31 August 3552 1 September 3552 2 September 3552 3 September 3552 4 September 3552 5 September 3552 6 September 3552 7 September 3552 8 September 3552 9 September 3552 10 September 3552 11 September 3552 12 September 3552 13 September 3552 14 September 3552 15 September 3552
MS 542600 MS 542601 MS 542602 MS 542603 MS 542604 MS 542605 MS 542606 MS 542607 MS 542608 MS 542609 MS 542610 MS 542611 MS 542612 MS 542613 MS 542614 MS 542615 MS 542616 MS 542617 MS 542618 MS 542619 MS 542620 MS 542621 MS 542622 MS 542623 MS 542624 MS 542625 MS 542626 MS 542627 MS 542628 MD 557662 MD 557663 MD 557664 MD 557665 MD 557666 MD 557667 MD 557668 MD 557669 MD 557670 MD 557671 MD 557672 MD 557673 MD 557674 MD 557675 MD 557676 MD 557677 MD 557678 MD 557679 MD 557680 MD 557681 MD 557682 MD 557683 MD 557684 MD 557685 MD 557686 MD 557687 MD 557688 MD 557689 MD 557690 MD 557691