Astronomy:10 Cassiopeiae
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Short description: Star in the constellation Cassiopeia
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| Observation data Equinox J2000.0]] (ICRS) | |
|---|---|
| Constellation | Cassiopeia |
| Right ascension | 00h 06m 26.5374s[1] |
| Declination | +64° 11′ 46.169″[1] |
| Apparent magnitude (V) | 5.54 - 5.59[2] |
| Characteristics | |
| Spectral type | B9IIIe[2] |
| U−B color index | −0.19[3] |
| B−V color index | −0.03[3] |
| Variable type | suspected Be[2] |
| Astrometry | |
| Radial velocity (Rv) | −0.61±0.54[1] km/s |
| Proper motion (μ) | RA: +9.248[1] mas/yr Dec.: +0.828[1] mas/yr |
| Parallax (π) | 3.4070 ± 0.0536[1] mas |
| Distance | 960 ± 20 ly (294 ± 5 pc) |
| Absolute magnitude (MV) | −1.863[4] |
| Details | |
| Mass | 3.2[5] M☉ |
| Radius | 8.3[6] R☉ |
| Luminosity | 920[7] L☉ |
| Surface gravity (log g) | 2.08[5] cgs |
| Temperature | 11,351[7] K |
| Metallicity [Fe/H] | −0.01[4] dex |
| Rotation | 1.07 d[8] |
| Rotational velocity (v sin i) | 125[7] km/s |
| Age | 218[9] Myr |
| Other designations | |
| Database references | |
| SIMBAD | data |
10 Cassiopeiae (10 Cas) is a blue-white giant star in the constellation Cassiopeia, about 960 light years away.
10 Cassiopeiae is a B9 giant star. It shows emission lines in its spectrum and is classified as a Be star. It shows slight variations in its brightness, between magnitudes 5.54 and 5.59.
At an age of 218 million years, 10 Cassiopeiae has expanded away from the main sequence after exhausting its core hydrogen and now has a radius about eight times that of the Sun. With an effective temperature of about 11,000 K, it emits nearly a thousand times the luminosity of the Sun.
References
- ↑ 1.0 1.1 1.2 1.3 1.4 1.5 Vallenari, A. et al. (2022). "Gaia Data Release 3. Summary of the content and survey properties". Astronomy & Astrophysics. doi:10.1051/0004-6361/202243940 Gaia DR3 record for this source at VizieR.
- ↑ 2.0 2.1 2.2 Samus, N. N. et al. (2017). "General Catalogue of Variable Stars". Astronomy Reports. 5.1 61 (1): 80–88. doi:10.1134/S1063772917010085. Bibcode: 2017ARep...61...80S.
- ↑ 3.0 3.1 The Bright Star Catalogue. New Haven: Yale University Observatory. 1991. Bibcode: 1991bsc..book.....H.
- ↑ 4.0 4.1 Katz, D.; Soubiran, C.; Cayrel, R.; Barbuy, B.; Friel, E.; Bienaymé, O.; Perrin, M. -N. (2011). "Probing the Galactic thick disc vertical properties and interfaces". Astronomy and Astrophysics 525: A90. doi:10.1051/0004-6361/201014840. Bibcode: 2011A&A...525A..90K.
- ↑ 5.0 5.1 Anders, F.; Khalatyan, A.; Chiappini, C.; Queiroz, A. B.; Santiago, B. X.; Jordi, C.; Girardi, L.; Brown, A. G. A. et al. (2019). "Photo-astrometric distances, extinctions, and astrophysical parameters for Gaia DR2 stars brighter than G = 18". Astronomy and Astrophysics 628: A94. doi:10.1051/0004-6361/201935765. Bibcode: 2019A&A...628A..94A.
- ↑ Stassun, Keivan G. et al. (2019-10-01). "The Revised TESS Input Catalog and Candidate Target List". The Astronomical Journal 158 (4): 138. doi:10.3847/1538-3881/ab3467. ISSN 0004-6256. Bibcode: 2019AJ....158..138S.
- ↑ 7.0 7.1 7.2 Zorec, J.; Frémat, Y.; Domiciano De Souza, A.; Royer, F.; Cidale, L.; Hubert, A.-M.; Semaan, T.; Martayan, C. et al. (2017). "Critical study of the distribution of rotational velocities of Be stars". Astronomy & Astrophysics 595: A132. doi:10.1051/0004-6361/201628760. Bibcode: 2016A&A...595A.132Z.
- ↑ Oelkers, Ryan J.; Rodriguez, Joseph E.; Stassun, Keivan G.; Pepper, Joshua; Somers, Garrett; Kafka, Stella; Stevens, Daniel J.; Beatty, Thomas G. et al. (2018). "Variability Properties of Four Million Sources in the TESS Input Catalog Observed with the Kilodegree Extremely Little Telescope Survey". The Astronomical Journal 155 (1): 39. doi:10.3847/1538-3881/aa9bf4. Bibcode: 2018AJ....155...39O.
- ↑ Gontcharov, G. A. (December 2012). "Dependence of kinematics on the age of stars in the solar neighborhood". Astronomy Letters 38 (12): 771–782. doi:10.1134/S1063773712120031. ISSN 0320-0108. Bibcode: 2012AstL...38..771G.
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