Star profile

Omicron Coronae Borealis

3D likeness based on its real data · class K · ~4,200 K

What is Omicron Coronae Borealis

Omicron-1 Coronae Borealis hosts a confirmed planet: one of the least massive worlds ever detected around a red clump giant. The star itself is an evolved K0 III, 270 light-years away, fusing helium at its core, with a radius ten times solar and fifty times the Sun's luminosity. The planet was revealed by the tiny radial wobbles it stirs in its host as it tugs gravitationally on the giant.

Where it is and when to see it

Omicron 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 April, when it culminates around midnight.

From London it culminates about 68° above the horizon.
From New York it culminates about 79° above the horizon.
From Sydney it culminates about 26° above the horizon.

It can be seen from anywhere north of 60° S.

It ranks no. 19 in brightness among the 26 stars of Corona Borealis in our catalogue. To find it, start from Alphecca, the brightest: it lies about 4° away (a fist at arm's length covers about 10°).

The light you see today left it about 270 years ago.

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Astronomical data for Omicron Coronae Borealis

Constellation: Corona Borealis
Apparent magnitude: 5.51
Distance: 270.0 light years
Coordinates (J2000): RA 230.036° · Dec 29.616°
Catalogue: HIP 75049 · HD 136512

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Other stars in Corona Borealis

Corona Borealis has 26 stars in Stelvia's catalogue. Here are a few of them.

See all 26 stars in Corona Borealis