Observation data Epoch J2000.0 Equinox J2000.0 (ICRS)
Constellation
Columba
Right ascension
06h 22m 06.82831s[1]
Declination
−33° 26′ 11.0323″[1]
Apparent magnitude (V)
3.85[2]
Characteristics
Spectral type
G7 II[3]
U−B color index
+0.52[2]
B−V color index
+0.88[2]
Astrometry
Proper motion (μ)
RA: −24.23[1] mas/yr Dec.: −51.40[1] mas/yr
Parallax (π)
13.94 ± 0.51 mas[1]
Distance
234 ± 9 ly (72 ± 3 pc)
Absolute magnitude (MV)
−0.32[4]
Orbit[5][6]
Period (P)
868.78 d
Semi-major axis (a)
9.02±0.52 mas
Eccentricity (e)
0.7
Inclination (i)
116.3±4.2°
Periastron epoch (T)
2419915.02 JD
Argument of periastron (ω) (secondary)
117.1°
Semi-amplitude (K1) (primary)
10.6 km/s
Details
δ Col A
Luminosity
149.5[7]L☉
Surface gravity (log g)
2.49[8] cgs
Temperature
5,136[4] K
Metallicity [Fe/H]
−0.04[8] dex
Rotational velocity (v sin i)
4.8±0.2[4] km/s
Other designations
δ Col, CD−33° 2927, HD 44762, HIP 30277, HR 2296, SAO 196735.[9]
Database references
SIMBAD
data
Delta Columbae is a binary star system in the constellation Columba. It can be seen with the naked eye having an apparent visual magnitude of 3.85.[2] The distance to this system, based upon an annual parallax shift of 13.94 mas,[1] is around 234 lightyears.
Delta Columbae was a latter designation of 3 Canis Majoris, as the early astronomers Johann Bayer and John Flamsteed did not include the constellation Columba in their star charts.[10] It has the uncommon traditional name Ghusn al Zaitun, from the Arabic الغصن الزيتونal-ghuşn al-zaitūn "the olive branch" (carried by the dove of Noah's Ark).[citation needed]
This is a single-lined spectroscopic binary system with an orbital period of 868.78 days and an eccentricity of 0.7.[5] It has a peculiar velocity of 30.2±3.9 km/s, making it a candidate runaway star system. The primary component is a G-type bright giant star with a stellar classification of G7 II.[3] It radiates around 149[7] time the solar luminosity from its outer atmosphere at an effective temperature of 5,136 K.[4]
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DeltaColumbae is a binary star system in the constellation Columba. It can be seen with the naked eye having an apparent visual magnitude of 3.85. The...
stars, with 3 Canis Majoris being placed by Lacaille into Columba as DeltaColumbae (Flamsteed had not recognised Columba as a distinct constellation)....
Centauri or Alpha and Beta Columbae. In any case, the name was somehow applied to both Delta Canis Majoris and Beta Columbae. Richard Hinckley Allen muses...
considered "theme" houses; predating the current classification system are Columbae (Social Change Through Nonviolence, since 1970), and Synergy (Exploring...
a multiple system. This event is credited with ejecting AE Aurigae, Mu Columbae and 53 Arietis at above 200 km·s−1 and has been traced to the Trapezium...
Binary star system 2.65 Alpha Columbae Star 2.65 Beta Arietis Binary star system 2.65 Upsilon Scorpii Star 2.668 Delta Sagittarii Star 2.68 Beta Lupi...
be caused by supernovae, and there is strong evidence that OB stars μ Columbae, AE Aurigae, and 53 Arietis all originated from such explosions in Ori OB1...
us-Samā' "Middle" of the sky وسط السماء Delta Geminorum Wezen al-Wazn the Weight الوزن Delta Canis Majoris Wezn al-Wazn the Weight الوزن Beta Columbae...
Batten, A. H.; Fletcher, J. M. (1992-04-01). "A new spectroscopic orbit for delta Capricorni". Journal of the Royal Astronomical Society of Canada. 86: 99–109...
Kōng Master of Constructions Beta Ceti Diphda Cetus 屎 Shǐ Excrement Mu Columbae Columba A single-star asterism in the Three Stars mansion. 郎將 Láng Jiāng...
co-ops in which the students do their own cooking and cleaning (Synergy, Columbae, 576 Alvarado, Hammarskjold, Enchanted Broccoli Forest, Terra, and Kairos)...
expanded to include 26 potential members. Possible members include Beta Columbae, Pi Mensae, 14 Tauri and 68 Virginis. The space velocities of this group...
Astrometric data from the Hipparcos mission reveal that the red giant star Beta Columbae passed within 2 light years of Beta Pictoris about 110,000 years ago, but...