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Theta Canis Majoris
Lokasi θ Canis Majoris (dilingkari)
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Data pengamatan
Epos J2000.0 Ekuinoks J2000.0 (ICRS)
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| Rasi bintang
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Canis Major
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| Asensio rekta
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06j 54m 11,39877d[1]
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| Deklinasi
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−12° 02′ 19,0674″[1]
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| Magnitudo tampak (V)
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4,08[2]
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| Ciri-ciri
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| Kelas spektrum
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K4 III[2]
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| Indeks warna U−B
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+1,69[3]
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| Indeks warna B−V
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+1,43[3]
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| Astrometri |
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| Kecepatan radial (Rv) | +96,2±0,1[4] km/s | | Gerak diri (μ) | RA: −137,26[1] mdb/thn
Dek.: −15,37[1] mdb/thn | | Paralaks (π) | 12,51±0,62[1] mdb | | Jarak | 260 ± 10 tc
(80 ± 4 pc) | | Magnitudo mutlak (MV) | −0,36 ± 0,15[5] | |
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| Detail[4] |
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| Massa | 0,95±0,03 M☉ | | Radius | 31,91±1,92 R☉ | | Luminositas | 263 L☉ | | Gravitasi permukaan (log g) | 1,67±0,08 | | Suhu | 4,145±26 K | | Metalisitas [Fe/H] | −0,52±0,04 | | Kecepatan rotasi (v sin i) | 2,72±0,40 km/s | | Usia | 10,41±1,31 gigatahun | |
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| Penamaan lain |
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θ CMa, 14 CMa, BD−11° 1681, FK5 266, HD 50778, HIP 33160, HR 2574, SAO 152071, GC 9051 [6] |
| Referensi basis data |
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| SIMBAD | data |
Theta Canis Majoris (θ CMa / θ Canis Majoris) adalah salah satu bintang di rasi Canis Major.
θ Canis Majoris adalah bintang raksasa jingga dengan magnitudo tampak 4,08.[2] Bintang ini berada pada jarak 260 tahun cahaya (80 parsec) dari Matahari.[1]
Pada Almagest, bintang ini disebut sebagai quae in auribus, berarti "yang berada di telinga (sang anjing besar)".[7]
Referensi
- ^ a b c d e f van Leeuwen, F. (2007), "Validation of the new Hipparcos reduction", Astronomy and Astrophysics, 474 (2): 653–664, arXiv:0708.1752
 , Bibcode:2007A&A...474..653V, doi:10.1051/0004-6361:20078357.
- ^ a b c Setiawan, J.; et al. (July 2004), "Precise radial velocity measurements of G and K giants. Multiple systems and variability trend along the Red Giant Branch", Astronomy and Astrophysics, 421: 241–254, Bibcode:2004A&A...421..241S, doi:10.1051/0004-6361:20041042-1.
- ^ a b Johnson, H. L.; et al. (1966), "UBVRIJKL photometry of the bright stars", Communications of the Lunar and Planetary Laboratory, 4 (99), Bibcode:1966CoLPL...4...99J.
- ^ a b Jofré, E.; et al. (2015), "Stellar parameters and chemical abundances of 223 evolved stars with and without planets", Astronomy & Astrophysics, 574: A50, arXiv:1410.6422 , Bibcode:2015A&A...574A..50J, doi:10.1051/0004-6361/201424474.
- ^ da Silva, L.; et al. (November 2006), "Basic physical parameters of a selected sample of evolved stars", Astronomy and Astrophysics, 458 (2): 609–623, arXiv:astro-ph/0608160 , Bibcode:2006A&A...458..609D, doi:10.1051/0004-6361:20065105.
- ^ "tet CMa". SIMBAD. Centre de données astronomiques de Strasbourg. Diakses tanggal 2017-09-08.
- ^ http://www.atlascoelestis.com/alsufi%2038.htm
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