
Star profile
Omicron Tauri
What is Omicron Tauri
Omicron Tauri burns with yellow light at 291 light-years, set within the field of Taurus but beyond the Hyades cluster that crowds the same patch of sky. It is a heavily evolved G-type giant: roughly three solar masses swollen to twenty times the Sun's radius. Its hue recalls the younger Sun it once was, before millions of years turned it into this warm beacon of the zodiac.
Where it is and when to see it
Omicron Tauri 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 culminates about 48° above the horizon.
- From New York it culminates about 58° above the horizon.
- From Sydney it culminates about 47° above the horizon.
It can be seen from anywhere north of 81° S.
It ranks no. 8 in brightness among the 144 stars of Taurus in our catalogue. To find it, start from Aldebaran, the brightest: it lies about 19° away (a fist at arm's length covers about 10°).
The light you see today left it about 290 years ago.
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Astronomical data for Omicron Tauri
- Constellation
- Taurus
- Apparent magnitude
- 3.61
- Distance
- 291.0 light years
- Coordinates (J2000)
- RA 51.203° · Dec 9.029°
- Catalogue
- HIP 15900 · HD 21120
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Other stars in Taurus
Taurus has 144 stars in Stelvia's catalogue. Here are a few of them.
- AldebaranAlpha Tauri0.87
- ElnathBeta Tauri1.65
- AlcyoneEta Tauri2.85
- ChamukuyTheta 2 Tauri3.40
- Lambda Tauri3.41
- AinEpsilon Tauri3.53
- Atlas3.62
- Prima HyadumGamma Tauri3.65