HD 24480 is a multiple[7] star system in the northern constellation of Camelopardalis. The brighter component is a giant star with a stellar classification of K4III and an apparent magnitude of 5.20.[3] The companion is a hotter, A-[4] or B-type star that is a suspected spectroscopic binary system.[7] The visible pair have an angular separation of 1.71 arcseconds.[3]
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Camelopardalis |
| Right ascension | 03h 57m 08.2886s[1] |
| Declination | +61° 06′ 31.9947″[1] |
| Apparent magnitude (V) | 4.98[2] (5.20 + 8.08)[3] |
| Characteristics | |
| Spectral type | K4III + A[4] |
| U−B color index | +1.18[2] |
| B−V color index | +1.42[2] |
| Astrometry | |
| Radial velocity (Rv) | −4.20(20)[1] km/s |
| Proper motion (μ) | RA: −2.117(96) mas/yr[1] Dec.: −12.858(99) mas/yr[1] |
| Parallax (π) | 3.1699 ± 0.1037 mas[1] |
| Distance | 1,030 ± 30 ly (320 ± 10 pc) |
| Details | |
| A | |
| Radius | 90[5] R☉ |
| Luminosity | 1,854 – 1,888[5] L☉ |
| Temperature | 3,986±170[5] K |
| Other designations | |
| Database references | |
| SIMBAD | data |
References
edit- ^ a b c d e Vallenari, A.; et al. (Gaia collaboration) (2023). "Gaia Data Release 3. Summary of the content and survey properties". Astronomy and Astrophysics. 674: A1. arXiv:2208.00211. Bibcode:2023A&A...674A...1G. doi:10.1051/0004-6361/202243940. S2CID 244398875. Gaia DR3 record for this source at VizieR.
- ^ a b c Mermilliod, J.-C. (1986). "Compilation of Eggen's UBV data, transformed to UBV (unpublished)". Catalogue of Eggen's UBV Data. SIMBAD. Bibcode:1986EgUBV........0M.
- ^ a b c Eggleton, P. P.; Tokovinin, A. A. (September 2008). "A catalogue of multiplicity among bright stellar systems". Monthly Notices of the Royal Astronomical Society. 389 (2): 869–879. arXiv:0806.2878. Bibcode:2008MNRAS.389..869E. doi:10.1111/j.1365-2966.2008.13596.x. S2CID 14878976.
- ^ a b Abt, Helmut A. (2008). "Visual Multiples. IX. MK Spectral Types". The Astrophysical Journal Supplement Series. 176 (1): 216–217. Bibcode:2008ApJS..176..216A. doi:10.1086/525529.
- ^ a b c Messineo, M.; Brown, A. G. A. (2019). "A Catalog of Known Galactic K-M Stars of Class I Candidate Red Supergiants in Gaia DR2". The Astronomical Journal. 158 (1): 20. arXiv:1905.03744. Bibcode:2019AJ....158...20M. doi:10.3847/1538-3881/ab1cbd. S2CID 148571616.
- ^ "HD 24480". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2021-01-25.
{{cite web}}: CS1 maint: postscript (link) - ^ a b Parsons, Sidney B. (May 2004). "New and Confirmed Triple Systems with Luminous Cool Primaries and Hot Companions". The Astronomical Journal. 127 (5): 2915–2930. Bibcode:2004AJ....127.2915P. doi:10.1086/383546.
External links
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