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 735→
SolPhoDeiTerVenJovSat
1
2345678
9101112131415
16171819202122
232425262728
1 Hydra 735 2 Hydra 735 3 Hydra 735 4 Hydra 735 5 Hydra 735 6 Hydra 735 7 Hydra 735 8 Hydra 735 9 Hydra 735 10 Hydra 735 11 Hydra 735 12 Hydra 735 13 Hydra 735 14 Hydra 735 15 Hydra 735 16 Hydra 735 17 Hydra 735 18 Hydra 735 19 Hydra 735 20 Hydra 735 21 Hydra 735 22 Hydra 735 23 Hydra 735 24 Hydra 735 25 Hydra 735 26 Hydra 735 27 Hydra 735 28 Hydra 735 1 Corvus 735 7 November 2993 8 November 2993 9 November 2993 10 November 2993 11 November 2993 12 November 2993 13 November 2993 14 November 2993 15 November 2993 16 November 2993 17 November 2993 18 November 2993 19 November 2993 20 November 2993 21 November 2993 22 November 2993 23 November 2993 24 November 2993 25 November 2993 26 November 2993 27 November 2993 28 November 2993 29 November 2993 30 November 2993 1 December 2993 2 December 2993 3 December 2993 4 December 2993 5 December 2993 6 December 2993
MS 344028 MS 344029 MS 344030 MS 344031 MS 344032 MS 344033 MS 344034 MS 344035 MS 344036 MS 344037 MS 344038 MS 344039 MS 344040 MS 344041 MS 344042 MS 344043 MS 344044 MS 344045 MS 344046 MS 344047 MS 344048 MS 344049 MS 344050 MS 344051 MS 344052 MS 344053 MS 344054 MS 344055 MS 344056 MD 353574 MD 353575 MD 353576 MD 353577 MD 353578 MD 353579 MD 353580 MD 353581 MD 353582 MD 353583 MD 353584 MD 353585 MD 353586 MD 353587 MD 353588 MD 353589 MD 353590 MD 353591 MD 353592 MD 353593 MD 353594 MD 353595 MD 353596 MD 353597 MD 353598 MD 353599 MD 353600 MD 353601 MD 353602 MD 353603