Star profile
Nu Cassiopeiae
Hot blue starWhat is Nu Cassiopeiae
Nu Cassiopeiae is a blue-white B-type star about 412 light-years away, within the unmistakable W-shape —or M, depending on the season— of the Ethiopian Queen. Its raw light comes from a photosphere many times hotter than the Sun's, an intensity our eyes perceive only as a modest point compared to its brighter neighbours Schedar and Caph.
Where it is and when to see it
Nu Cassiopeiae lies in the northern celestial hemisphere. It is visible to the naked eye under a dark sky. Its best month of the year is October, when it culminates around midnight.
- From London it never sets and culminates about 89° up.
- From New York it never sets and culminates about 80° up.
- From Sydney it culminates about 5° above the horizon.
It can be seen from anywhere north of 39° S.
It ranks no. 27 in brightness among the 93 stars of Cassiopeia in our catalogue. To find it, start from Cih, the brightest: it lies about 10° away (a fist at arm's length covers about 10°).
The light you see today left it about 410 years ago.
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Astronomical data for Nu Cassiopeiae
- Constellation
- Cassiopeia
- Apparent magnitude
- 4.90
- Distance
- 411.9 light years
- Coordinates (J2000)
- RA 12.208° · Dec 50.968°
- Catalogue
- HIP 3801 · HD 4636
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Other stars in Cassiopeia
Cassiopeia has 93 stars in Stelvia's catalogue. Here are a few of them.
- CihGamma Cassiopeiae2.15
- SchedarAlpha Cassiopeiae2.24
- CaphBeta Cassiopeiae2.28
- Tau Cassiopeiae4.88
- Sigma Cassiopeiae4.88
- HIP 1159904.89
- Pi Cassiopeiae4.95
- Phi Cassiopeiae4.95