Rho Draconis
| Data pengamatan Epos J2000.0 Ekuinoks J2000.0 (ICRS) | |
|---|---|
| Rasi bintang | Draco |
| Asensio rekta | 20j 02m 49.07268d[1] |
| Deklinasi | +67° 52′ 24.8294″[1] |
| Magnitudo tampak (V) | 4.52[2] |
| Ciri-ciri | |
| Kelas spektrum | K3 III[3] |
| Indeks warna U−B | +1.54[2] |
| Indeks warna B−V | +1.34[2] |
| Astrometri | |
| Kecepatan radial (Rv) | −9.80 ± 0.43[4] km/s |
| Gerak diri (μ) | RA: +16.44[1] mdb/thn Dek.: +47.31[1] mdb/thn |
| Paralaks (π) | 7,61±0,17[1] mdb |
| Jarak | 429 ± 10 tc (131 ± 3 pc) |
| Magnitudo mutlak (MV) | −0.97[5] |
| Detail | |
| Radius | 28[3] R☉ |
| Luminositas | 402[6] L☉ |
| Gravitasi permukaan (log g) | 1.90[7] |
| Suhu | 4370[7] K |
| Metalisitas [Fe/H] | 0.03[7] |
| Kecepatan rotasi (v sin i) | 10[8] km/s |
| Penamaan lain | |
ρ Dra, 67 Dra, BD+67° 1222, HD 190940, HIP 98702, HR 7685, SAO 18676[9] | |
| Referensi basis data | |
| SIMBAD | data |
Rho Draconis (ρ Dra / ρ Draconis) adalah salah satu bintang pada rasi Draco . Bintang ini memiliki magnitudo 4.51 dan merupakan bintang dengan kelas F8IV-V. Bintang ini berada pada jarak 406 tahun cahaya dari Bumi.
Etimologi
Nama tradisional bintang ini adalah Tais II atau Tais ath Thani[10] yang berarti "kambing kedua" dalam bahasa Arab.
Nama lainnya untuk bintang ini adalah:
| nama lain | asal bahasa | arti |
|---|---|---|
| 天廚四 / Tiānchúsì | China | bintang keempat pada rasi Dapur di Langit[11] |
Selain rasi Draco, bintang ini juga merupakan anggota dari berbagai rasi atau asterisma berikut:
| nama rasi / asterisma | asal | arti | anggota lainnya |
|---|---|---|---|
| 天廚 / Tiānchú | China | Dapur di Langit | δ Dra, σ Dra, ε Dra, 64 Dra, π Dra |
| Al Tāis[12] | Arab | kambing | δ Dra, ε Dra, π Dra |
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 Argue, A. N. (1966), "UBV photometry of 550 F, G and K type stars", Monthly Notices of the Royal Astronomical Society, 133: 475–493, Bibcode:1966MNRAS.133..475A, doi:10.1093/mnras/133.4.475. Pemeliharaan CS1: DOI bebas tanpa ditandai (link)
- ^ a b Pasinetti Fracassini, L. E.; et al. (February 2001), "Catalogue of Apparent Diameters and Absolute Radii of Stars (CADARS)", Astronomy and Astrophysics, 367 (Edisi 3rd): 521–524, arXiv:astro-ph/0012289, Bibcode:2001A&A...367..521P, doi:10.1051/0004-6361:20000451.
- ^ Famaey, B.; et al. (2005), "Local kinematics of K and M giants from CORAVEL/Hipparcos/Tycho-2 data. Revisiting the concept of superclusters", Astronomy and Astrophysics, 430: 165–186, arXiv:astro-ph/0409579, Bibcode:2005A&A...430..165F, doi:10.1051/0004-6361:20041272.
- ^ Ryon, Jenna; et al. (August 2009), "Comparing the Ca ii H and K Emission Lines in Red Giant Stars", Publications of the Astronomical Society of the Pacific, 121 (882): 842, arXiv:0907.3346, Bibcode:2009PASP..121..842R, doi:10.1086/605456.
- ^ McDonald, I.; et al. (2012), "Fundamental parameters and infrared excesses of Hipparcos stars", Monthly Notices of the Royal Astronomical Society, 427: 343, arXiv:1208.2037, Bibcode:2012MNRAS.427..343M, doi:10.1111/j.1365-2966.2012.21873.x.
- ^ a b c Mishenina, T. V.; et al. (October 1995), "Chemical composition of five giants with positive CN-indices.", Astronomy and Astrophysics Supplement, 113: 333, Bibcode:1995A&AS..113..333M.
- ^ Bernacca, P. L.; Perinotto, M. (1970), "A catalogue of stellar rotational velocities", Contributi Osservatorio Astronomico di Padova in Asiago, 239 (1), Bibcode:1970CoAsi.239....1B.
- ^ "rho Dra". SIMBAD. Centre de données astronomiques de Strasbourg. Diakses tanggal 2017-05-30.
- ^ http://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19720005197_1972005197.pdf
- ^ salah satu rasi bintang menurut bangsa Cina
- ^ http://penelope.uchicago.edu/Thayer/E/Gazetteer/Topics/astronomy/_Texts/secondary/ALLSTA/Draco*.html
 | Artikel bertopik bintang ini adalah sebuah rintisan. Anda dapat membantu Wikipedia dengan mengembangkannya. |
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