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 651→
SolPhoDeiTerVenJovSat
1
2345678
9101112131415
16171819202122
232425262728
1 Hydra 651 2 Hydra 651 3 Hydra 651 4 Hydra 651 5 Hydra 651 6 Hydra 651 7 Hydra 651 8 Hydra 651 9 Hydra 651 10 Hydra 651 11 Hydra 651 12 Hydra 651 13 Hydra 651 14 Hydra 651 15 Hydra 651 16 Hydra 651 17 Hydra 651 18 Hydra 651 19 Hydra 651 20 Hydra 651 21 Hydra 651 22 Hydra 651 23 Hydra 651 24 Hydra 651 25 Hydra 651 26 Hydra 651 27 Hydra 651 28 Hydra 651 1 Corvus 651 26 October 2835 27 October 2835 28 October 2835 29 October 2835 30 October 2835 31 October 2835 1 November 2835 2 November 2835 3 November 2835 4 November 2835 5 November 2835 6 November 2835 7 November 2835 8 November 2835 9 November 2835 10 November 2835 11 November 2835 12 November 2835 13 November 2835 14 November 2835 15 November 2835 16 November 2835 17 November 2835 18 November 2835 19 November 2835 20 November 2835 21 November 2835 22 November 2835 23 November 2835 24 November 2835
MS 287867 MS 287868 MS 287869 MS 287870 MS 287871 MS 287872 MS 287873 MS 287874 MS 287875 MS 287876 MS 287877 MS 287878 MS 287879 MS 287880 MS 287881 MS 287882 MS 287883 MS 287884 MS 287885 MS 287886 MS 287887 MS 287888 MS 287889 MS 287890 MS 287891 MS 287892 MS 287893 MS 287894 MS 287895 MD 295853 MD 295854 MD 295855 MD 295856 MD 295857 MD 295858 MD 295859 MD 295860 MD 295861 MD 295862 MD 295863 MD 295864 MD 295865 MD 295866 MD 295867 MD 295868 MD 295869 MD 295870 MD 295871 MD 295872 MD 295873 MD 295874 MD 295875 MD 295876 MD 295877 MD 295878 MD 295879 MD 295880 MD 295881 MD 295882