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 1382→
SolPhoDeiTerVenJovSat
1
2345678
9101112131415
16171819202122
232425262728
1 Hydra 1382 2 Hydra 1382 3 Hydra 1382 4 Hydra 1382 5 Hydra 1382 6 Hydra 1382 7 Hydra 1382 8 Hydra 1382 9 Hydra 1382 10 Hydra 1382 11 Hydra 1382 12 Hydra 1382 13 Hydra 1382 14 Hydra 1382 15 Hydra 1382 16 Hydra 1382 17 Hydra 1382 18 Hydra 1382 19 Hydra 1382 20 Hydra 1382 21 Hydra 1382 22 Hydra 1382 23 Hydra 1382 24 Hydra 1382 25 Hydra 1382 26 Hydra 1382 27 Hydra 1382 28 Hydra 1382 1 Corvus 1382 11 February 4211 12 February 4211 13 February 4211 14 February 4211 15 February 4211 16 February 4211 17 February 4211 18 February 4211 19 February 4211 20 February 4211 21 February 4211 22 February 4211 23 February 4211 24 February 4211 25 February 4211 26 February 4211 27 February 4211 28 February 4211 1 March 4211 2 March 4211 3 March 4211 4 March 4211 5 March 4211 6 March 4211 7 March 4211 8 March 4211 9 March 4211 10 March 4211 11 March 4211 12 March 4211
MS 776607 MS 776608 MS 776609 MS 776610 MS 776611 MS 776612 MS 776613 MS 776614 MS 776615 MS 776616 MS 776617 MS 776618 MS 776619 MS 776620 MS 776621 MS 776622 MS 776623 MS 776624 MS 776625 MS 776626 MS 776627 MS 776628 MS 776629 MS 776630 MS 776631 MS 776632 MS 776633 MS 776634 MS 776635 MD 798169 MD 798170 MD 798171 MD 798172 MD 798173 MD 798174 MD 798175 MD 798176 MD 798177 MD 798178 MD 798179 MD 798180 MD 798181 MD 798182 MD 798183 MD 798184 MD 798185 MD 798186 MD 798187 MD 798188 MD 798189 MD 798190 MD 798191 MD 798192 MD 798193 MD 798194 MD 798195 MD 798196 MD 798197 MD 798198