Back Gliese 445 AST Gliese 445 German Gliese 445 English Gliese 445 Spanish گلیزه ۴۴۵ Persian Gliese 445 French גליזה 445 HE ग्लीज़ ४४५ Hindi グリーゼ445 Japanese 글리제 445 Korean
.jpg) Gambar dari of AC +79 3888 (dibulatkan), juga dikenal dengan Gliese 445, terletak 17.1 tahun cahaya dari Bumi | |
| Data pengamatan Epos J2000.0 Ekuinoks J2000.0 (ICRS) | |
|---|---|
| Rasi bintang | Camelopardalis |
| Asensio rekta | 11j 47m 41.3885d[1] |
| Deklinasi | +78° 41′ 28.179″[1] |
| Magnitudo tampak (V) | 10.80[2] |
| Ciri-ciri | |
| Kelas spektrum | M4.0Ve[3] |
| Indeks warna B−V | 1.572[2] |
| Astrometri | |
| Kecepatan radial (Rv) | −111.707[1] km/s |
| Gerak diri (μ) | RA: 748.111[1] mdb/thn Dek.: 480.804[1] mdb/thn |
| Paralaks (π) | 190,3251±0,0194[4] mdb |
| Jarak | 17,137 ± 0,002 tc (5,2542 ± 0,0005 pc) |
| Magnitudo mutlak (MV) | 12.227[5] |
| Detail | |
| Massa | 0.14[6] M☉ |
| Radius | 0.285[5] R☉ |
| Luminositas | 0.008[7] L☉ |
| Gravitasi permukaan (log g) | 4.72[7] |
| Suhu | 3,507[1] K |
| Metalisitas [Fe/H] | −0,30[5] |
| Kecepatan rotasi (v sin i) | <2.5[8] km/s |
| Penamaan lain | |
| Referensi basis data | |
| SIMBAD | data |
| ARICNS | data |
  Gliese 445 Location of Gliese 445 in the constellation Camelopardalis | |
Gliese 445 (Gl 445 atau AC +79 3888) adalah sebuah bintang deret utama Tipe M yang terletak pada bagian utara dari konstelasi Camelopardalis.
- ^ a b c d e f Brown, A. G. A.; et al. (kolaborasi Gaia) (Agustus 2018). "Gaia Data Release 2: Summary of the contents and survey properties". Astronomy & Astrophysics. 616. A1. arXiv:1804.09365
. Bibcode:2018A&A...616A...1G . doi:10.1051/0004-6361/201833051 . Catatan Gaia DR2 untuk sumber tersebut di VizieR.
- ^ a b Urban, S. E.; Zacharias, N.; Wycoff, Observatory G. L. U. S. Naval; Washington, 2004-2006 D. C. (2004). "VizieR Online Data Catalog: The UCAC2 Bright Star Supplement (Urban+, 2006)". VizieR On-line Data Catalog. Bibcode:2004yCat.1294....0U.
- ^ Lépine, Sébastien; Hilton, Eric J.; Mann, Andrew W.; Wilde, Matthew; Rojas-Ayala, Bárbara; Cruz, Kelle L.; Gaidos, Eric (2013). "A Spectroscopic Catalog of the Brightest (J < 9) M Dwarfs in the Northern Sky". The Astronomical Journal. 145 (4): 102. arXiv:1206.5991 . Bibcode:2013AJ....145..102L. doi:10.1088/0004-6256/145/4/102.
- ^ Templat:Cite Gaia EDR3
- ^ a b c Houdebine, Éric R.; Mullan, D. J.; Doyle, J. G.; de la Vieuville, Geoffroy; Butler, C. J.; Paletou, F. (2019). "The Mass-Activity Relationships in M and K Dwarfs. I. Stellar Parameters of Our Sample of M and K Dwarfs". The Astronomical Journal. 158 (2): 56. arXiv:1905.07921 . Bibcode:2019AJ....158...56H. doi:10.3847/1538-3881/ab23fe .
- ^ Gaidos, E.; Mann, A. W.; Lépine, S.; Buccino, A.; James, D.; Ansdell, M.; Petrucci, R.; Mauas, P.; Hilton, E. J. (2014). "Trumpeting M dwarfs with CONCH-SHELL: A catalogue of nearby cool host-stars for habitable exoplanets and life". Monthly Notices of the Royal Astronomical Society. 443 (3): 2561. arXiv:1406.7353 . Bibcode:2014MNRAS.443.2561G. doi:10.1093/mnras/stu1313.
- ^ a b McDonald, I.; Zijlstra, A. A.; Watson, R. A. (2017). "Fundamental parameters and infrared excesses of Tycho-Gaia stars". Monthly Notices of the Royal Astronomical Society. 471 (1): 770. arXiv:1706.02208 . Bibcode:2017MNRAS.471..770M. doi:10.1093/mnras/stx1433.
- ^ Stelzer, B.; Marino, A.; Micela, G.; López-Santiago, J.; Liefke, C. (2013). "The UV and X-ray activity of the M dwarfs within 10 pc of the Sun". Monthly Notices of the Royal Astronomical Society. 431 (3): 2063. arXiv:1302.1061 . Bibcode:2013MNRAS.431.2063S. doi:10.1093/mnras/stt225.
- ^ "GJ 445". SIMBAD. Centre de données astronomiques de Strasbourg.
