BP Bootis
BP Bootis
Courbe de lumière de BP Bootis[1].
| Ascension droite | 15h 42m 50,760 818s[2] |
|---|---|
| Déclinaison | +52° 21′ 39,244 41″[2] |
| Constellation | Bouvier |
| Magnitude apparente | 5,48[3] |
Localisation dans la constellation : Bouvier | |
| Type spectral | A0 Vp Si Cr[4] |
|---|---|
| Indice B-V | −0,042 ± 0,004[3] |
| Variabilité | Alpha2 Canum Venaticorum[5] |
| Vitesse radiale | −16,1 ± 2,8 km/s[3] |
|---|---|
| Mouvement propre |
μα = −66,214 mas/a[2] μδ = +29,308 mas/a[2] |
| Parallaxe | 10,92 ± 0,18 mas[2] |
| Distance |
299 ± 5 al (92 ± 2 pc) |
| Magnitude absolue | +0,48[6] |
| Masse | 2,58 ± 0,07 M☉[6] |
|---|---|
| Rayon | 2,7 ± 0,2 R☉[6] |
| Gravité de surface (log g) | 3,99 ± 0,07[6] |
| Luminosité | 65 L☉[6] |
| Température | 9 954 K[6] |
| Rotation | 69 km/s[7] |
| Âge | 170 Ma[7] |
Désignations
BP Bootis est une étoile variable de type Alpha2 Canum Venaticorum de la constellation du Bouvier, située à 299 ± 5 a.l. (∼ 91,7 pc) de la Terre.
Références
- (en) Cet article est partiellement ou en totalité issu de l’article de Wikipédia en anglais intitulé « BP Boötis » (voir la liste des auteurs).
- ↑ (en-US) « Mikulski Archive for Space Telescopes (MAST) Portal », sur mast.stsci.edu (consulté le )
- (en) A. G. A. Brown et al. (Gaia collaboration), « Gaia Data Release 2 : Summary of the contents and survey properties », Astronomy & Astrophysics, vol. 616, , article no A1 (DOI 10.1051/0004-6361/201833051, Bibcode 2018A&A...616A...1G, arXiv 1804.09365). Notice Gaia DR2 pour cette source sur VizieR.
- (en) E. Anderson et Ch. Francis, « XHIP: An extended hipparcos compilation », Astronomy Letters, vol. 38, , p. 331–346 (ISSN 1063-7737, DOI 10.1134/S1063773712050015, Bibcode 2012AstL...38..331A)
- ↑ (en) Helmut A. Abt et Nidia I. Morrell, « The Relation between Rotational Velocities and Spectral Peculiarities among A-Type Stars », The Astrophysical Journal Supplement Series, vol. 99, , p. 135 (ISSN 0067-0049, DOI 10.1086/192182, Bibcode 1995ApJS...99..135A)
- ↑ (en) N. N. Samus', E. V. Kazarovets, O. V. Durlevich et N. N. Kireeva, « General catalogue of variable stars: Version GCVS 5.1 », Astronomy Reports, vol. 61, , p. 80–88 (ISSN 1063-7729, DOI 10.1134/S1063772917010085, Bibcode 2017ARep...61...80S)
- (en) P. North, « Do SI stars undergo any rotational braking? », Astronomy and Astrophysics, vol. 334, , p. 181–187 (ISSN 0004-6361, DOI 10.48550/arXiv.astro-ph/9802286, Bibcode 1998A&A...334..181N)
- (en) Trevor J. David et Lynne A. Hillenbrand, « The Ages of Early-type Stars: Strömgren Photometric Methods Calibrated, Validated, Tested, and Applied to Hosts and Prospective Hosts of Directly Imaged Exoplanets », The Astrophysical Journal, vol. 804, , p. 146 (ISSN 0004-637X, DOI 10.1088/0004-637X/804/2/146, Bibcode 2015ApJ...804..146D)
- ↑ (en) V* BP Boo -- alpha2 CVn Variable sur la base de données Simbad du Centre de données astronomiques de Strasbourg.
Liens externes
- Ressource relative à l'astronomie :
Content Disclaimer
Informasi ini disarikan dari Wikipedia dan disajikan kembali untuk tujuan edukasi. Konten tersedia di bawah lisensi CC BY-SA 3.0. Kami tidak bertanggung jawab atas ketidakakuratan data yang bersumber dari kontribusi publik tersebut.
- The information displayed on this website is sourced in part or in whole from Wikipedia and has been adapted for the purpose of restating it. We strive to provide accurate and relevant information, however:
- There is no guarantee of absolute accuracy. Wikipedia is an open, collaborative project that can be edited by anyone, so information is subject to change.
- It is not intended to constitute professional advice. The content displayed is for informational and educational purposes only. For important decisions (e.g., medical, legal, or financial), please consult a professional.
- Content copyright. Wikipedia is licensed under the Creative Commons Attribution-ShareAlike License (CC BY-SA). This means that content may be reused with appropriate attribution and shared under a similar license.
- Responsible use. Any risk arising from the use of information from this website is entirely the responsibility of the user.