Gamma Canis Majoris
| Data pengamatan Epos J2000.0 Ekuinoks J2000.0 | |
|---|---|
| Rasi bintang | Canis Major |
| Asensio rekta | 07j 03m 45,49305d[1] |
| Deklinasi | -15° 37′ 59,8300″[1] |
| Magnitudo tampak (V) | +4,10[2] |
| Ciri-ciri | |
| Kelas spektrum | B8II[3] |
| Indeks warna U−B | −0,45[2] |
| Indeks warna B−V | −0,13[2] |
| Astrometri | |
| Kecepatan radial (Rv) | +32,0[4] km/s |
| Gerak diri (μ) | RA: −0,14[1] mdb/thn Dek.: –11,36[1] mdb/thn |
| Paralaks (π) | 7,38±0,21[1] mdb |
| Jarak | 440 ± 10 tc (136 ± 4 pc) |
| Magnitudo mutlak (MV) | −1,4[5] |
| Detail | |
| Radius | 5,6[6] R☉ |
| Gravitasi permukaan (log g) | 3,5[6] |
| Suhu | 13.596[6] K |
| Metalisitas [Fe/H] | −0,24[7] |
| Rotasi | 6,16 h[8] |
| Kecepatan rotasi (v sin i) | 30[9] km/s |
| Penamaan lain | |
| Referensi basis data | |
| SIMBAD | data |
Gamma Canis Majoris (γ CMa / γ Canis Majoris) adalah salah satu bintang pada rasi bintang Canis Major. γ Canis Majoris adalah bintang raksasa biru keputihan tipe B (blue-white B-type bright giant) dengan magnitudo tampak +4,10.[2] Bintang ini berada pada jarak 440 tahun cahaya dari Bumi.
Etimologi
Bintang ini memiliki nama tradisional Muliphein, berasal kata sama dengan Muhlifain(Gamma Centauri), dari bahasa Arab, محلفين muħlifayn. Nama lain dari para astronom terdahulu adalah:
| nama lain | asal bahasa | arti |
|---|---|---|
| 天狼增四 / Tiānlángzēngsì | China | bintang lanjutan keempat pada (rasi) Serigala di Langit.[10][11] |
| Borealis duarum quae sunt in collo (Almagest) | Latin | Yang di utara di antara dua bintang di leher (sang anjing besar).[12] |
Referensi
- ^ a b c d e 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 d Fernie, J. D. (May 1983), "New UBVRI photometry for 900 supergiants", Astrophysical Journal Supplement Series, 52: 7–22, Bibcode:1983ApJS...52....7F, doi:10.1086/190856.
- ^ Buscombe, W. (1962), "Spectral classification of Southern fundamental stars", Mount Stromlo Observatory Mimeogram, 4, Bibcode:1962MtSOM...4....1B.
- ^ Kharchenko, N. V.; et al. (2007), "Astrophysical supplements to the ASCC-2.5: Ia. Radial velocities of ∼55000 stars and mean radial velocities of 516 Galactic open clusters and associations", Astronomische Nachrichten, 328 (9): 889–896, arXiv:0705.0878, Bibcode:2007AN....328..889K, doi:10.1002/asna.200710776.
- ^ Jaschek, C.; Gomez, A. E. (1998). "The absolute magnitude of the early type MK standards from HIPPARCOS parallaxes". Astronomy and Astrophysics. 330: 619. Bibcode:1998A&A...330..619J.
- ^ a b c Underhill, A. B.; et al. (November 1979), "Effective temperatures, angular diameters, distances and linear radii for 160 O and B stars", Monthly Notices of the Royal Astronomical Society, 189 (3): 601–605, Bibcode:1979MNRAS.189..601U, doi:10.1093/mnras/189.3.601. Pemeliharaan CS1: DOI bebas tanpa ditandai (link)
- ^ Kesalahan pengutipan: Tanda
<ref>tidak sah; tidak ditemukan teks untuk ref bernamaapj145_141 - ^ Hubrig, S.; et al. (November 2012), "Magnetic fields of HgMn stars*", Astronomy & Astrophysics, 547: 24, arXiv:1208.2910, Bibcode:2012A&A...547A..90H, doi:10.1051/0004-6361/201219778, A90.
- ^ Abt, Helmut A.; et al. (July 2002), "Rotational Velocities of B Stars", The Astrophysical Journal, 573 (1): 359–365, Bibcode:2002ApJ...573..359A, doi:10.1086/340590.
- ^ salah satu rasi bintang menurut bangsa Cina
- ^ berkemungkinan bintang ini merupakan salah satu lanjutan dari posisi satu bintang di rasi Serigala di Langit, yaitu Arcturus
- ^ "Salinan arsip". Diarsipkan dari asli tanggal 2023-01-06. Diakses tanggal 2010-09-29.
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