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 1239→
SolPhoDeiTerVenJovSat
12345
6789101112
13141516171819
20212223242526
2728
1 Hydra 1239 2 Hydra 1239 3 Hydra 1239 4 Hydra 1239 5 Hydra 1239 6 Hydra 1239 7 Hydra 1239 8 Hydra 1239 9 Hydra 1239 10 Hydra 1239 11 Hydra 1239 12 Hydra 1239 13 Hydra 1239 14 Hydra 1239 15 Hydra 1239 16 Hydra 1239 17 Hydra 1239 18 Hydra 1239 19 Hydra 1239 20 Hydra 1239 21 Hydra 1239 22 Hydra 1239 23 Hydra 1239 24 Hydra 1239 25 Hydra 1239 26 Hydra 1239 27 Hydra 1239 28 Hydra 1239 1 Corvus 1239 27 January 3942 28 January 3942 29 January 3942 30 January 3942 31 January 3942 1 February 3942 2 February 3942 3 February 3942 4 February 3942 5 February 3942 6 February 3942 7 February 3942 8 February 3942 9 February 3942 10 February 3942 11 February 3942 12 February 3942 13 February 3942 14 February 3942 15 February 3942 16 February 3942 17 February 3942 18 February 3942 19 February 3942 20 February 3942 21 February 3942 22 February 3942 23 February 3942 24 February 3942
MS 680997 MS 680998 MS 680999 MS 681000 MS 681001 MS 681002 MS 681003 MS 681004 MS 681005 MS 681006 MS 681007 MS 681008 MS 681009 MS 681010 MS 681011 MS 681012 MS 681013 MS 681014 MS 681015 MS 681016 MS 681017 MS 681018 MS 681019 MS 681020 MS 681021 MS 681022 MS 681023 MS 681024 MS 681025 MD 699904 MD 699905 MD 699906 MD 699907 MD 699908 MD 699909 MD 699910 MD 699911 MD 699912 MD 699913 MD 699914 MD 699915 MD 699916 MD 699917 MD 699918 MD 699919 MD 699920 MD 699921 MD 699922 MD 699923 MD 699924 MD 699925 MD 699926 MD 699927 MD 699928 MD 699929 MD 699930 MD 699931 MD 699932