| Observation data Epoch J2000.0 Equinox J2000.0 |
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|---|---|
| Constellation | Columba |
| Right ascension | 06h 07m 31.6328s |
| Declination | −37° 15' 10.513" |
| Apparent magnitude (V) | 4.993 |
| Absolute magnitude (V) | -1.850 |
| Distance | 762 ly (233.63 pc) |
| Spectral type | B9 IV |
| Other designations | |
Theta Columbae is a blue subgiant star in the constellation Columba.
This star, along with ζ CMa, λ CMa, γ Col, δ Col, κ Col, λ Col, μ Col and ξ Col, were Al Ḳurūd (ألقرد - al-qird), the Apes.[1][2].
In Chinese, 孫 (Sūn), meaning Grandson, refers to an asterism consisting of θ Columbae and κ Columbae.[3] Consequently, θ Columbae itself is known as 孫二 (Sūn èr, English: the Second Star of Grandson.)[4].
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