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 1356→
SolPhoDeiTerVenJovSat
1234
567891011
12131415161718
19202122232425
262728
1 Hydra 1356 2 Hydra 1356 3 Hydra 1356 4 Hydra 1356 5 Hydra 1356 6 Hydra 1356 7 Hydra 1356 8 Hydra 1356 9 Hydra 1356 10 Hydra 1356 11 Hydra 1356 12 Hydra 1356 13 Hydra 1356 14 Hydra 1356 15 Hydra 1356 16 Hydra 1356 17 Hydra 1356 18 Hydra 1356 19 Hydra 1356 20 Hydra 1356 21 Hydra 1356 22 Hydra 1356 23 Hydra 1356 24 Hydra 1356 25 Hydra 1356 26 Hydra 1356 27 Hydra 1356 28 Hydra 1356 1 Corvus 1356 13 March 4162 14 March 4162 15 March 4162 16 March 4162 17 March 4162 18 March 4162 19 March 4162 20 March 4162 21 March 4162 22 March 4162 23 March 4162 24 March 4162 25 March 4162 26 March 4162 27 March 4162 28 March 4162 29 March 4162 30 March 4162 31 March 4162 1 April 4162 2 April 4162 3 April 4162 4 April 4162 5 April 4162 6 April 4162 7 April 4162 8 April 4162 9 April 4162 10 April 4162
MS 759223 MS 759224 MS 759225 MS 759226 MS 759227 MS 759228 MS 759229 MS 759230 MS 759231 MS 759232 MS 759233 MS 759234 MS 759235 MS 759236 MS 759237 MS 759238 MS 759239 MS 759240 MS 759241 MS 759242 MS 759243 MS 759244 MS 759245 MS 759246 MS 759247 MS 759248 MS 759249 MS 759250 MS 759251 MD 780303 MD 780304 MD 780305 MD 780306 MD 780307 MD 780308 MD 780309 MD 780310 MD 780311 MD 780312 MD 780313 MD 780314 MD 780315 MD 780316 MD 780317 MD 780318 MD 780319 MD 780320 MD 780321 MD 780322 MD 780323 MD 780324 MD 780325 MD 780326 MD 780327 MD 780328 MD 780329 MD 780330 MD 780331