
Star profile
Omicron 2 Cancri
What is Omicron 2 Cancri
Omicron-2 Cancri is a yellow-white F-type star some 150 light-years away, in the modest constellation of the Crab. Cancer is famous for hosting the open cluster Praesepe, the Beehive, one of the closest to the Sun; the omicron stars sit in another region of the crustacean, far from that swarm. Its modest naked-eye light contributes to the faint but ancient outline of one of the zodiac signs.
Where it is and when to see it
Omicron 2 Cancri lies in the northern celestial hemisphere. It is visible to the naked eye under a dark sky. Its best month of the year is February, when it culminates around midnight.
- From London it culminates about 54° above the horizon.
- From New York it culminates about 65° above the horizon.
- From Sydney it culminates about 41° above the horizon.
It can be seen from anywhere north of 74° S.
It ranks no. 31 in brightness among the 49 stars of Cancer in our catalogue. To find it, start from Tarf, the brightest: it lies about 12° away (a fist at arm's length covers about 10°).
The light you see today left it about 150 years ago.
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Astronomical data for Omicron 2 Cancri
- Constellation
- Cancer
- Apparent magnitude
- 5.68
- Distance
- 150.5 light years
- Coordinates (J2000)
- RA 134.397° · Dec 15.581°
- Catalogue
- HIP 44001 · HD 76582
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Other stars in Cancer
Cancer has 49 stars in Stelvia's catalogue. Here are a few of them.
- TarfBeta Cancri3.53
- Asellus AustralisDelta Cancri3.94
- Iota Cancri4.03
- 45 Cancri5.62
- 49 Cancri5.63
- Sigma 1 Cancri5.67
- Upsilon 1 Cancri5.71
- Psi Cancri5.73