7 Bootis
7 Bootis
| Ascension droite | 13h 53m 12,930 33s[1] |
|---|---|
| Déclinaison | +17° 55′ 58,328 2″[1] |
| Constellation | Bouvier |
| Magnitude apparente | 5,71[2] |
Localisation dans la constellation : Bouvier   | |
| Stade évolutif | Trou de Hertzsprung[2] |
|---|---|
| Type spectral | G5 III[2] |
| Indice B-V | 0,845[3] |
| Vitesse radiale | −11,00 ± 0,18 km/s[1] |
|---|---|
| Mouvement propre |
μα = −34,842 mas/a[1] μδ = +5,092 mas/a[1] |
| Parallaxe | 5,523 6 ± 0,077 6 mas[1] |
| Distance |
590 ± 8 al (181 ± 3 pc) |
| Masse | 4,0 ± 0,7 M☉[2] |
|---|---|
| Rayon | 19,0 R☉[2] |
| Luminosité | 229 L☉[2] |
| Température | 4 600 K[2] |
| Métallicité | +0,08[2] |
| Rotation | 14,5 km/s[2] |
Désignations
7 Bootis est une étoile de la constellation du Bouvier, située à 590 ± 8 années-lumière (181 ± 3 parsecs) de la Terre.
Références
- (en) Cet article est partiellement ou en totalité issu de l’article de Wikipédia en anglais intitulé « 7 Boötis » (voir la liste des auteurs).
- Gaia Collaboration, A. G. A. Brown, A. Vallenari et T. Prusti, « Gaia Data Release 2. Summary of the contents and survey properties », Astronomy and Astrophysics, vol. 616, , A1 (ISSN 0004-6361, DOI 10.1051/0004-6361/201833051, lire en ligne, consulté le )
- M. Aurière, R. Konstantinova-Antova, C. Charbonnel et G. A. Wade, « The magnetic fields at the surface of active single G-K giants », Astronomy and Astrophysics, vol. 574, , A90 (ISSN 0004-6361, DOI 10.1051/0004-6361/201424579, lire en ligne, consulté le )
- ↑ E. Anderson et Ch. Francis, « XHIP: An extended hipparcos compilation », Astronomy Letters, vol. 38, , p. 331–346 (ISSN 1063-7737, DOI 10.1134/S1063773712050015, lire en ligne, consulté le )
- ↑ « 7 Boo », sur simbad.u-strasbg.fr (consulté le )
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.