IAU and Sky & Telescope magazine (Roger Sinnott & Rick Fienberg). Via Wikipedia.
Cancer
The Crab
OriginAncient
AbbreviationCnc
GenitiveCancri
Pronunciation/ˈkænsər/ genitive /ˈkæŋkraɪ/
CAN-ser
LocationNorthern Hemisphere
Primary StarTarf (β Cancri)
Right Ascention 8h 17m Declination +9° 11'
Martian Solar Lag δ(🜨→♂) +0.238h (14.3m)
When Hercules was fighting the Lernaean Hydra as the second of his Twelve Labors, Hera sent a huge crab to assist the Hydra by snapping at Hercules’ heels. Hercules crushed the crab and Hera placed it in the heavens as the constellation Cancer.
www.underthesky.com
Cancer 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.
←June 1556→
SunMonTueWedThurFriSat
12
3456789
10111213141516
17181920212223
24252627282930
1 June 1556 2 June 1556 3 June 1556 4 June 1556 5 June 1556 6 June 1556 7 June 1556 8 June 1556 9 June 1556 10 June 1556 11 June 1556 12 June 1556 13 June 1556 14 June 1556 15 June 1556 16 June 1556 17 June 1556 18 June 1556 19 June 1556 20 June 1556 21 June 1556 22 June 1556 23 June 1556 24 June 1556 25 June 1556 26 June 1556 27 June 1556 28 June 1556 29 June 1556 30 June 1556 1 July 1556
MD -171439 MD -171438 MD -171437 MD -171436 MD -171435 MD -171434 MD -171433 MD -171432 MD -171431 MD -171430 MD -171429 MD -171428 MD -171427 MD -171426 MD -171425 MD -171424 MD -171423 MD -171422 MD -171421 MD -171420 MD -171419 MD -171418 MD -171417 MD -171416 MD -171415 MD -171414 MD -171413 MD -171412 MD -171411 MD -171410 MD -171409