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 1317→
SolPhoDeiTerVenJovSat
12345
6789101112
13141516171819
20212223242526
2728
1 Hydra 1317 2 Hydra 1317 3 Hydra 1317 4 Hydra 1317 5 Hydra 1317 6 Hydra 1317 7 Hydra 1317 8 Hydra 1317 9 Hydra 1317 10 Hydra 1317 11 Hydra 1317 12 Hydra 1317 13 Hydra 1317 14 Hydra 1317 15 Hydra 1317 16 Hydra 1317 17 Hydra 1317 18 Hydra 1317 19 Hydra 1317 20 Hydra 1317 21 Hydra 1317 22 Hydra 1317 23 Hydra 1317 24 Hydra 1317 25 Hydra 1317 26 Hydra 1317 27 Hydra 1317 28 Hydra 1317 1 Corvus 1317 25 October 4088 26 October 4088 27 October 4088 28 October 4088 29 October 4088 30 October 4088 31 October 4088 1 November 4088 2 November 4088 3 November 4088 4 November 4088 5 November 4088 6 November 4088 7 November 4088 8 November 4088 9 November 4088 10 November 4088 11 November 4088 12 November 4088 13 November 4088 14 November 4088 15 November 4088 16 November 4088 17 November 4088 18 November 4088 19 November 4088 20 November 4088 21 November 4088 22 November 4088 23 November 4088
MS 733147 MS 733148 MS 733149 MS 733150 MS 733151 MS 733152 MS 733153 MS 733154 MS 733155 MS 733156 MS 733157 MS 733158 MS 733159 MS 733160 MS 733161 MS 733162 MS 733163 MS 733164 MS 733165 MS 733166 MS 733167 MS 733168 MS 733169 MS 733170 MS 733171 MS 733172 MS 733173 MS 733174 MS 733175 MD 753502 MD 753503 MD 753504 MD 753505 MD 753506 MD 753507 MD 753508 MD 753509 MD 753510 MD 753511 MD 753512 MD 753513 MD 753514 MD 753515 MD 753516 MD 753517 MD 753518 MD 753519 MD 753520 MD 753521 MD 753522 MD 753523 MD 753524 MD 753525 MD 753526 MD 753527 MD 753528 MD 753529 MD 753530 MD 753531