Hydra

features of interest zeta (z) cancri 5 A double star for small telescopes. Its 5th- and 6th-magnitude stars form a binary with an orbital period of over 1,000 years.

iota (1) cancri 1 5 A 4th-magnitude yellow giant with a nicely contrasting 7th-magnitude blue-white companion that is just detectable in 10 x 50 binoculars and easy to see in small telescopes.

M44 (praesepe, the beehive, the manger) 1 5 A large open cluster at the heart of Cancer.

M67 1 5 An open cluster in southern Cancer, smaller and denser than M44.

the beehive cluster

This cluster was known to the ancient Greeks, who could see it as a misty spot with the unaided eye, although it is unlikely to be visible under urban skies without binoculars.

the beehive cluster

This cluster was known to the ancient Greeks, who could see it as a misty spot with the unaided eye, although it is unlikely to be visible under urban skies without binoculars.

cancer

Y M44 s

Y M44 s

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