Astronomy:HD 131040
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Short description: Star in the constellation Boötes
| Observation data Equinox J2000.0]] (ICRS) | |
|---|---|
| Constellation | Boötes[1] |
| Right ascension | 14h 49m 32.38200s[2] |
| Declination | +51° 22′ 28.2117″[2] |
| Apparent magnitude (V) | 6.51[3] |
| Characteristics | |
| Evolutionary stage | main sequence[2] |
| Spectral type | F3V[4] |
| U−B color index | +0.00[3] |
| B−V color index | +0.40[3] |
| Astrometry | |
| Radial velocity (Rv) | −6.90[5] km/s |
| Proper motion (μ) | RA: +15.592[2] mas/yr Dec.: +1.961[2] mas/yr |
| Parallax (π) | 19.1763 ± 0.0147[2] mas |
| Distance | 170.1 ± 0.1 ly (52.15 ± 0.04 pc) |
| Absolute magnitude (MV) | +2.93[1] |
| Details | |
| Mass | 1.4[6] M☉ |
| Radius | 1.7[6] R☉ |
| Luminosity | 5.6[6] L☉ |
| Surface gravity (log g) | 4.12[6] cgs |
| Temperature | 6,743[6] K |
| Metallicity [Fe/H] | +0.04[7] dex |
| Age | 1.80[7] Myr |
| Other designations | |
| Database references | |
| SIMBAD | data |
HD 131040 is an F-type main-sequence star in the northern constellation of Boötes. It has an apparent magnitude of 6.51 and is 170 light years away.
The brightness of HD 131040 has been reported to vary slightly by 0.04 magnitudes.[9] Radial velocity variations and an apparent over-luminosity have led to the theory that D 131040 is a spectroscopic binary.[10]
Multiple star catalogues list a 10th-magnitude companion at an angular separation of 15.1″ along a position angle of 93°, and a 14th-magnitude companion at a separation of 62".[11] Neither is thought to be physically associated with HD 131040, but there is a possible white dwarf 9.4" away, which is at a similar distance and has a similar proper motion.[10]
References
- ↑ 1.0 1.1 Anderson, E.; Francis, Ch. (2012). "XHIP: An extended hipparcos compilation". Astronomy Letters 38 (5): 331. doi:10.1134/S1063773712050015. Bibcode: 2012AstL...38..331A.
- ↑ 2.0 2.1 2.2 2.3 2.4 2.5 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.
- ↑ 3.0 3.1 3.2 Mermilliod, J.-C. (1986), "Compilation of Eggen's UBV data, transformed to UBV (unpublished)", Catalogue of Eggen's UBV Data. SIMBAD, Bibcode: 1986EgUBV........0M.
- ↑ Abt, H. A. (1981). "Visual multiples. VII. MK classifications". The Astrophysical Journal Supplement Series 45: 437. doi:10.1086/190719. Bibcode: 1981ApJS...45..437A.
- ↑ Gontcharov, G. A. (November 2006), "Pulkovo Compilation of Radial Velocities for 35 495 Hipparcos stars in a common system", Astronomy Letters 32 (11): 759–771, doi:10.1134/S1063773706110065, Bibcode: 2006AstL...32..759G.
- ↑ 6.0 6.1 6.2 6.3 6.4 Stassun, Keivan G. et al. (2019). "The Revised TESS Input Catalog and Candidate Target List". The Astronomical Journal 158 (4): 138. doi:10.3847/1538-3881/ab3467. Bibcode: 2019AJ....158..138S.
- ↑ 7.0 7.1 Casagrande, L.; Schönrich, R.; Asplund, M.; Cassisi, S.; Ramírez, I.; Meléndez, J.; Bensby, T.; Feltzing, S. (2011). "New constraints on the chemical evolution of the solar neighbourhood and Galactic disc(s). Improved astrophysical parameters for the Geneva-Copenhagen Survey". Astronomy and Astrophysics 530. doi:10.1051/0004-6361/201016276. Bibcode: 2011A&A...530A.138C.
- ↑ "HD 131040". SIMBAD. Centre de données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=HD+131040.
- ↑ Adelman, S. J.; Coursey, B. C.; Harris, E. A. (December 2000), "On the Variability of F1-F9 Luminosity Class III-V Stars", Information Bulletin on Variable Stars 5003 (5003): 1, Bibcode: 2000IBVS.5003....1A
- ↑ 10.0 10.1 Tokovinin, Andrei (2018). "The Updated Multiple Star Catalog". The Astrophysical Journal Supplement Series 235 (1): 6. doi:10.3847/1538-4365/aaa1a5. Bibcode: 2018ApJS..235....6T.
- ↑ Mason, B. D. et al. (2014), "The Washington Visual Double Star Catalog", The Astronomical Journal 122 (6): 3466, doi:10.1086/323920, Bibcode: 2001AJ....122.3466M, http://vizier.u-strasbg.fr/viz-bin/VizieR?-source=B/wds, retrieved 2015-07-22
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