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 1341→
SolPhoDeiTerVenJovSat
12
3456789
10111213141516
17181920212223
2425262728
1 Hydra 1341 2 Hydra 1341 3 Hydra 1341 4 Hydra 1341 5 Hydra 1341 6 Hydra 1341 7 Hydra 1341 8 Hydra 1341 9 Hydra 1341 10 Hydra 1341 11 Hydra 1341 12 Hydra 1341 13 Hydra 1341 14 Hydra 1341 15 Hydra 1341 16 Hydra 1341 17 Hydra 1341 18 Hydra 1341 19 Hydra 1341 20 Hydra 1341 21 Hydra 1341 22 Hydra 1341 23 Hydra 1341 24 Hydra 1341 25 Hydra 1341 26 Hydra 1341 27 Hydra 1341 28 Hydra 1341 1 Corvus 1341 22 December 4133 23 December 4133 24 December 4133 25 December 4133 26 December 4133 27 December 4133 28 December 4133 29 December 4133 30 December 4133 31 December 4133 1 January 4134 2 January 4134 3 January 4134 4 January 4134 5 January 4134 6 January 4134 7 January 4134 8 January 4134 9 January 4134 10 January 4134 11 January 4134 12 January 4134 13 January 4134 14 January 4134 15 January 4134 16 January 4134 17 January 4134 18 January 4134 19 January 4134 20 January 4134
MS 749194 MS 749195 MS 749196 MS 749197 MS 749198 MS 749199 MS 749200 MS 749201 MS 749202 MS 749203 MS 749204 MS 749205 MS 749206 MS 749207 MS 749208 MS 749209 MS 749210 MS 749211 MS 749212 MS 749213 MS 749214 MS 749215 MS 749216 MS 749217 MS 749218 MS 749219 MS 749220 MS 749221 MS 749222 MD 769995 MD 769996 MD 769997 MD 769998 MD 769999 MD 770000 MD 770001 MD 770002 MD 770003 MD 770004 MD 770005 MD 770006 MD 770007 MD 770008 MD 770009 MD 770010 MD 770011 MD 770012 MD 770013 MD 770014 MD 770015 MD 770016 MD 770017 MD 770018 MD 770019 MD 770020 MD 770021 MD 770022 MD 770023 MD 770024