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 1133→
SolPhoDeiTerVenJovSat
1234567
891011121314
15161718192021
22232425262728
1 Hydra 1133 2 Hydra 1133 3 Hydra 1133 4 Hydra 1133 5 Hydra 1133 6 Hydra 1133 7 Hydra 1133 8 Hydra 1133 9 Hydra 1133 10 Hydra 1133 11 Hydra 1133 12 Hydra 1133 13 Hydra 1133 14 Hydra 1133 15 Hydra 1133 16 Hydra 1133 17 Hydra 1133 18 Hydra 1133 19 Hydra 1133 20 Hydra 1133 21 Hydra 1133 22 Hydra 1133 23 Hydra 1133 24 Hydra 1133 25 Hydra 1133 26 Hydra 1133 27 Hydra 1133 28 Hydra 1133 1 Corvus 1133 24 August 3742 25 August 3742 26 August 3742 27 August 3742 28 August 3742 29 August 3742 30 August 3742 31 August 3742 1 September 3742 2 September 3742 3 September 3742 4 September 3742 5 September 3742 6 September 3742 7 September 3742 8 September 3742 9 September 3742 10 September 3742 11 September 3742 12 September 3742 13 September 3742 14 September 3742 15 September 3742 16 September 3742 17 September 3742 18 September 3742 19 September 3742 20 September 3742 21 September 3742 22 September 3742
MS 610127 MS 610128 MS 610129 MS 610130 MS 610131 MS 610132 MS 610133 MS 610134 MS 610135 MS 610136 MS 610137 MS 610138 MS 610139 MS 610140 MS 610141 MS 610142 MS 610143 MS 610144 MS 610145 MS 610146 MS 610147 MS 610148 MS 610149 MS 610150 MS 610151 MS 610152 MS 610153 MS 610154 MS 610155 MD 627065 MD 627066 MD 627067 MD 627068 MD 627069 MD 627070 MD 627071 MD 627072 MD 627073 MD 627074 MD 627075 MD 627076 MD 627077 MD 627078 MD 627079 MD 627080 MD 627081 MD 627082 MD 627083 MD 627084 MD 627085 MD 627086 MD 627087 MD 627088 MD 627089 MD 627090 MD 627091 MD 627092 MD 627093 MD 627094