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 1015→
SolPhoDeiTerVenJovSat
1234
567891011
12131415161718
19202122232425
262728
1 Hydra 1015 2 Hydra 1015 3 Hydra 1015 4 Hydra 1015 5 Hydra 1015 6 Hydra 1015 7 Hydra 1015 8 Hydra 1015 9 Hydra 1015 10 Hydra 1015 11 Hydra 1015 12 Hydra 1015 13 Hydra 1015 14 Hydra 1015 15 Hydra 1015 16 Hydra 1015 17 Hydra 1015 18 Hydra 1015 19 Hydra 1015 20 Hydra 1015 21 Hydra 1015 22 Hydra 1015 23 Hydra 1015 24 Hydra 1015 25 Hydra 1015 26 Hydra 1015 27 Hydra 1015 28 Hydra 1015 1 Corvus 1015 23 August 3520 24 August 3520 25 August 3520 26 August 3520 27 August 3520 28 August 3520 29 August 3520 30 August 3520 31 August 3520 1 September 3520 2 September 3520 3 September 3520 4 September 3520 5 September 3520 6 September 3520 7 September 3520 8 September 3520 9 September 3520 10 September 3520 11 September 3520 12 September 3520 13 September 3520 14 September 3520 15 September 3520 16 September 3520 17 September 3520 18 September 3520 19 September 3520 20 September 3520
MS 531233 MS 531234 MS 531235 MS 531236 MS 531237 MS 531238 MS 531239 MS 531240 MS 531241 MS 531242 MS 531243 MS 531244 MS 531245 MS 531246 MS 531247 MS 531248 MS 531249 MS 531250 MS 531251 MS 531252 MS 531253 MS 531254 MS 531255 MS 531256 MS 531257 MS 531258 MS 531259 MS 531260 MS 531261 MD 545980 MD 545981 MD 545982 MD 545983 MD 545984 MD 545985 MD 545986 MD 545987 MD 545988 MD 545989 MD 545990 MD 545991 MD 545992 MD 545993 MD 545994 MD 545995 MD 545996 MD 545997 MD 545998 MD 545999 MD 546000 MD 546001 MD 546002 MD 546003 MD 546004 MD 546005 MD 546006 MD 546007 MD 546008