KIC 8462852
KIC 8462852[1] (juga Bintang Tabby atau Bintang WTF) adalah bintang urutan utama tipe F yang terletak dalam konstelasi Cygnus sekitar 1,276.6+398.2
−245.3 tahun cahaya (391,4+122,1
−75,2 pc) dari Bumi.[2]
 KIC 8462852 in infrared and ultraviolet | |
| Data pengamatan Epos J2000.0 Ekuinoks J2000.0 (ICRS) | |
|---|---|
| Rasi bintang | Cygnus |
| Asensio rekta | 20j 06m 15.457d |
| Deklinasi | +44° 27′ 24.61″ |
| Magnitudo tampak (V) | +11,705±0,017 |
| Ciri-ciri | |
| Tahap evolusi | Main sequence[1] |
| Kelas spektrum | F3V |
| Indeks warna B−V | 0.557 |
| Indeks warna V−R | 0.349 |
| Indeks warna R−I | 0.305 |
| Indeks warna J−H | 0.212 |
| Indeks warna J−K | 0.264 |
| Astrometri | |
| Gerak diri (μ) | RA: −9,9±2,6 mdb/thn Dek.: −10,5±2,4 mdb/thn |
| Paralaks (π) | 2,555±0,311[2] mdb |
| Jarak | 1.276,6+398,2 −245,3 tc (391,4+122,1 −75,2 pc) |
| Magnitudo mutlak (MV) | 3.08[1][3] |
| Detail | |
| Massa | 1.43[1] M☉ |
| Radius | 1.58[1] R☉ |
| Luminositas (bolometrik) | 4.68[1] L☉ |
| Gravitasi permukaan (log g) | 4,0±0,2[4] |
| Suhu | 6750±120[1] K |
| Metalisitas | 0,0±0,1[1] |
| Rotasi | 0,8797±0,0001 days[1] |
| Kecepatan rotasi (v sin i) | 84±4[1] km/s |
| Penamaan lain | |
| Referensi basis data | |
| SIMBAD | data |
| KIC | data |
Referensi
- ^ a b c d e f g h i j k l Boyajian, T. S.; LaCourse, D. M.; Rappaport, S. A.; Fabrycky, D.; Fischer, D. A.; et al. (April 2016). "Planet Hunters IX. KIC 8462852 – where's the flux?". Monthly Notices of the Royal Astronomical Society. 457 (4): 3988–4004. arXiv:1509.03622
. Bibcode:2016MNRAS.457.3988B. doi:10.1093/mnras/stw218.
- ^ a b Hippke, Michael; Angerhausen, Daniel (18 September 2016). "A first view with GAIA on KIC 8462852 - Distance estimates and a comparison to other F stars". arΧiv:1609.05492 [astro-ph].
- ^ Pecaut, Mark J.; Mamajek, Eric E. (September 2013). "Intrinsic Colors, Temperatures, and Bolometric Corrections of Pre-main-sequence Stars". The Astrophysical Journal Supplement. 208 (1). 9. arXiv:1307.2657 . Bibcode:2013ApJS..208....9P. doi:10.1088/0067-0049/208/1/9.
- ^ Marengo, Massimo; Hulsebus, Alan; Willis, Sarah (November 2015). "KIC 8462852: The Infrared Flux". The Astrophysical Journal Letters. 814 (1). L15. arXiv:1511.07908 . Bibcode:2015ApJ...814L..15M. doi:10.1088/2041-8205/814/1/L15.
- ^ Freeman, David (25 August 2016). "Are Space Aliens Behind The 'Most Mysterious Star In The Universe?'". The Huffington Post. Diakses tanggal 11 December 2016.
Pranala luar
- Kepler light curve data at STScI.edu
- "The Most Mysterious Star in the Universe" di YouTube, a TED Talk by Tabetha Boyajian
