Star profile
Upsilon Coronae Borealis
What is Upsilon Coronae Borealis
Upsilon Coronae Borealis is a white type-A star some 667 light-years away, in the Northern Crown —that small semicircle of stars Greek myth identified with the diadem of Ariadne, cast into the sky by Dionysus. Its light set out towards us in the fourteenth century, when Europe was traversing the Black Death and astronomy was still inseparable from horoscope and liturgical calendar.
Where it is and when to see it
Upsilon Coronae Borealis lies in the northern celestial hemisphere. It is visible to the naked eye under a dark sky. Its best month of the year is May, when it culminates around midnight.
- From London it culminates about 68° above the horizon.
- From New York it culminates about 78° above the horizon.
- From Sydney it culminates about 27° above the horizon.
It can be seen from anywhere north of 61° S.
It ranks no. 24 in brightness among the 26 stars of Corona Borealis in our catalogue. To find it, start from Alphecca, the brightest: it lies about 10° away (a fist at arm's length covers about 10°).
The light you see today left it about 670 years ago.
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Astronomical data for Upsilon Coronae Borealis
- Constellation
- Corona Borealis
- Apparent magnitude
- 5.80
- Distance
- 667.1 light years
- Coordinates (J2000)
- RA 244.187° · Dec 29.150°
- Catalogue
- HIP 79757 · HD 146738
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Other stars in Corona Borealis
Corona Borealis has 26 stars in Stelvia's catalogue. Here are a few of them.
- AlpheccaAlpha Coronae Borealis2.22
- NusakanBeta Coronae Borealis3.66
- Gamma Coronae Borealis3.81
- HIP 782765.61
- HIP 793585.62
- HIP 786495.79
- HIP 774425.89
- Eta Coronae Borealis5.96