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 1208→
SolPhoDeiTerVenJovSat
1234
567891011
12131415161718
19202122232425
262728
1 Hydra 1208 2 Hydra 1208 3 Hydra 1208 4 Hydra 1208 5 Hydra 1208 6 Hydra 1208 7 Hydra 1208 8 Hydra 1208 9 Hydra 1208 10 Hydra 1208 11 Hydra 1208 12 Hydra 1208 13 Hydra 1208 14 Hydra 1208 15 Hydra 1208 16 Hydra 1208 17 Hydra 1208 18 Hydra 1208 19 Hydra 1208 20 Hydra 1208 21 Hydra 1208 22 Hydra 1208 23 Hydra 1208 24 Hydra 1208 25 Hydra 1208 26 Hydra 1208 27 Hydra 1208 28 Hydra 1208 1 Corvus 1208 1 October 3883 2 October 3883 3 October 3883 4 October 3883 5 October 3883 6 October 3883 7 October 3883 8 October 3883 9 October 3883 10 October 3883 11 October 3883 12 October 3883 13 October 3883 14 October 3883 15 October 3883 16 October 3883 17 October 3883 18 October 3883 19 October 3883 20 October 3883 21 October 3883 22 October 3883 23 October 3883 24 October 3883 25 October 3883 26 October 3883 27 October 3883 28 October 3883 29 October 3883 30 October 3883
MS 660271 MS 660272 MS 660273 MS 660274 MS 660275 MS 660276 MS 660277 MS 660278 MS 660279 MS 660280 MS 660281 MS 660282 MS 660283 MS 660284 MS 660285 MS 660286 MS 660287 MS 660288 MS 660289 MS 660290 MS 660291 MS 660292 MS 660293 MS 660294 MS 660295 MS 660296 MS 660297 MS 660298 MS 660299 MD 678602 MD 678603 MD 678604 MD 678605 MD 678606 MD 678607 MD 678608 MD 678609 MD 678610 MD 678611 MD 678612 MD 678613 MD 678614 MD 678615 MD 678616 MD 678617 MD 678618 MD 678619 MD 678620 MD 678621 MD 678622 MD 678623 MD 678624 MD 678625 MD 678626 MD 678627 MD 678628 MD 678629 MD 678630 MD 678631