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 1118→
SolPhoDeiTerVenJovSat
12345
6789101112
13141516171819
20212223242526
2728
1 Hydra 1118 2 Hydra 1118 3 Hydra 1118 4 Hydra 1118 5 Hydra 1118 6 Hydra 1118 7 Hydra 1118 8 Hydra 1118 9 Hydra 1118 10 Hydra 1118 11 Hydra 1118 12 Hydra 1118 13 Hydra 1118 14 Hydra 1118 15 Hydra 1118 16 Hydra 1118 17 Hydra 1118 18 Hydra 1118 19 Hydra 1118 20 Hydra 1118 21 Hydra 1118 22 Hydra 1118 23 Hydra 1118 24 Hydra 1118 25 Hydra 1118 26 Hydra 1118 27 Hydra 1118 28 Hydra 1118 1 Corvus 1118 4 June 3714 5 June 3714 6 June 3714 7 June 3714 8 June 3714 9 June 3714 10 June 3714 11 June 3714 12 June 3714 13 June 3714 14 June 3714 15 June 3714 16 June 3714 17 June 3714 18 June 3714 19 June 3714 20 June 3714 21 June 3714 22 June 3714 23 June 3714 24 June 3714 25 June 3714 26 June 3714 27 June 3714 28 June 3714 29 June 3714 30 June 3714 1 July 3714 2 July 3714 3 July 3714
MS 600098 MS 600099 MS 600100 MS 600101 MS 600102 MS 600103 MS 600104 MS 600105 MS 600106 MS 600107 MS 600108 MS 600109 MS 600110 MS 600111 MS 600112 MS 600113 MS 600114 MS 600115 MS 600116 MS 600117 MS 600118 MS 600119 MS 600120 MS 600121 MS 600122 MS 600123 MS 600124 MS 600125 MS 600126 MD 616757 MD 616758 MD 616759 MD 616760 MD 616761 MD 616762 MD 616763 MD 616764 MD 616765 MD 616766 MD 616767 MD 616768 MD 616769 MD 616770 MD 616771 MD 616772 MD 616773 MD 616774 MD 616775 MD 616776 MD 616777 MD 616778 MD 616779 MD 616780 MD 616781 MD 616782 MD 616783 MD 616784 MD 616785 MD 616786