Star profile
Upsilon 1 Cassiopeiae
What is Upsilon 1 Cassiopeiae
Upsilon¹ Cassiopeiae is an orange K-type giant whose light crosses nearly 329 years before reaching us. It belongs to the rich yet discreet surroundings of the W of Cassiopeia, where mid-magnitude stars sketch the details of the royal throne. Upsilon² Cassiopeiae accompanies it as an optical pair: apparent closeness in the sky, considerable real physical separation. A reminder that constellations are human lines drawn over immense depths.
Where it is and when to see it
Upsilon 1 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 November, when it culminates around midnight.
- From London it never sets and culminates about 83° up.
- From New York it never sets and culminates about 72° up.
- From Sydney it never rises above the horizon.
It can be seen from anywhere north of 31° S.
It ranks no. 21 in brightness among the 93 stars of Cassiopeia in our catalogue. To find it, start from Cih, the brightest: it lies about 2° away (a fist at arm's length covers about 10°).
The light you see today left it about 330 years ago.
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Astronomical data for Upsilon 1 Cassiopeiae
- Constellation
- Cassiopeia
- Apparent magnitude
- 4.83
- Distance
- 328.5 light years
- Coordinates (J2000)
- RA 13.751° · Dec 58.973°
- Catalogue
- HIP 4292 · HD 5234
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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
- Lambda Cassiopeiae4.74
- Xi Cassiopeiae4.80
- HIP 41514.80
- 1 Cassiopeiae4.84
- HIP 148624.85