HD 35184
| Observation data Epoch J2000.0 Equinox J2000.0 (ICRS) | |
|---|---|
| Constellation | Mensa |
| Right ascension | 05h 15m 24.8374s[1] |
| Declination | −73° 35′ 18.5123″[1] |
| Apparent magnitude (V) | 6.50±0.01[2] |
| Characteristics | |
| Spectral type | A6 V[3] |
| B−V color index | +0.15[4] |
| Astrometry | |
| Radial velocity (Rv) | 13.6±0.6[5] km/s |
| Proper motion (μ) | RA: −22.228 mas/yr[1] Dec.: +5.616 mas/yr[1] |
| Parallax (π) | 8.7050±0.0209 mas[1] |
| Distance | 374.7 ± 0.9 ly (114.9 ± 0.3 pc) |
| Absolute magnitude (MV) | +1.26[4] |
| Details | |
| Mass | 2.15±0.04[6] M☉ |
| Radius | 2.8±0.1[7] R☉ |
| Luminosity | 24.5[8] L☉ |
| Surface gravity (log g) | 3.82+0.09 −0.07[7] cgs |
| Temperature | 8,034[8] K |
| Metallicity [Fe/H] | −0.01[9] dex |
| Rotational velocity (v sin i) | 92.4±2.9[10] km/s |
| Age | 674[9] Myr |
| Other designations | |
| 22 G. Mensae, CPD−73°294, GC 6150, HD 35184, HIP 24507, SAO 256172 | |
| Database references | |
| SIMBAD | data |
HD 35184 is a solitary star in the southern circumpolar constellation Mensa. It has an apparent magnitude of 6.50, which is at the visibility limit for the average naked eye observer under ideal conditions. Located 375 light years away, it is receding with a heliocentric radial velocity of 13.6 km/s.
HD 35184 has a stellar classification of A6 V, indicating that it is an ordinary A-type main-sequence star. At present it has 2.15 times the mass of the Sun[6] and 2.8 times the radius of the Sun.[7] It shines at 24.5 L☉ from its photosphere at an effective temperature of 8,034 K,[8] giving it a white hue. HD 35184 is 674 million years old – 79.6% through its main sequence lifetime[6] – and spins with a projected rotational velocity of 92 km/s−1.[10]
References
- ^ a b c d Brown, A. G. A.; et al. (Gaia collaboration) (2021). "Gaia Early Data Release 3: Summary of the contents and survey properties". Astronomy & Astrophysics. 649: A1. arXiv:2012.01533. Bibcode:2021A&A...649A...1G. doi:10.1051/0004-6361/202039657. S2CID 227254300. (Erratum: doi:10.1051/0004-6361/202039657e). Gaia EDR3 record for this source at VizieR.
- ^ Høg, E.; Fabricius, C.; Makarov, V. V.; Urban, S.; Corbin, T.; Wycoff, G.; Bastian, U.; Schwekendiek, P.; Wicenec, A. (March 2000). "The Tycho-2 catalogue of the 2.5 million brightest stars". Astronomy and Astrophysics. 355: L27–L30. Bibcode:2000A&A...355L..27H. ISSN 0004-6361.
- ^ Houk, N.; Cowley, A. P. (1975). University of Michigan Catalogue of two-dimensional spectral types for the HD stars. Volume I. Declinations -90_ to -53_ƒ0. Bibcode:1975mcts.book.....H.
- ^ a b Anderson, E.; Francis, Ch. (May 2012). "XHIP: An extended hipparcos compilation". Astronomy Letters. 38 (5): 331–346. arXiv:1108.4971. Bibcode:2012AstL...38..331A. doi:10.1134/S1063773712050015. ISSN 1063-7737. S2CID 119257644.
- ^ 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. arXiv:1606.08053. Bibcode:2006AstL...32..759G. doi:10.1134/S1063773706110065. ISSN 1063-7737. S2CID 119231169.
- ^ a b c Zorec, J.; Royer, F. (January 2012). "Rotational velocities of A-type stars. IV. Evolution of rotational velocities". Astronomy and Astrophysics. 537: A120. arXiv:1201.2052. Bibcode:2012A&A...537A.120Z. doi:10.1051/0004-6361/201117691. ISSN 0004-6361. S2CID 55586789.
- ^ a b c Stassun, Keivan G.; et al. (9 September 2019). "The Revised TESS Input Catalog and Candidate Target List". The Astronomical Journal. 158 (4): 138. arXiv:1905.10694. Bibcode:2019AJ....158..138S. doi:10.3847/1538-3881/ab3467. ISSN 0004-6256.
- ^ a b c McDonald, I.; Zijlstra, A. A.; Boyer, M. L. (21 November 2012). "Fundamental parameters and infrared excesses of Hipparcos stars: Parameters and IR excesses from Hipparcos". Monthly Notices of the Royal Astronomical Society. 427 (1): 343–357. arXiv:1208.2037. Bibcode:2012MNRAS.427..343M. doi:10.1111/j.1365-2966.2012.21873.x. ISSN 0035-8711.
- ^ a b Gontcharov, G. A. (December 2012). "Dependence of kinematics on the age of stars in the solar neighborhood". Astronomy Letters. 38 (12): 771–782. arXiv:1606.08814. Bibcode:2012AstL...38..771G. doi:10.1134/S1063773712120031. ISSN 0320-0108. S2CID 255201789.
- ^ a b Ammler-von Eiff, M.; Reiners, A. (June 2012). "New measurements of rotation and differential rotation in A-F stars: are there two populations of differentially rotating stars?". Astronomy & Astrophysics. 542: A116. arXiv:1204.2459. Bibcode:2012A&A...542A.116A. doi:10.1051/0004-6361/201118724. ISSN 0004-6361.