HD 72337
| Observation data Epoch J2000 Equinox ICRS | |
|---|---|
| Constellation | Volans |
| Right ascension | 08h 27m 16.7555s |
| Declination | −70° 05′ 36.541″ |
| Apparent magnitude (V) | 5.51±0.01 |
| Characteristics | |
| Evolutionary stage | main sequence |
| Spectral type | A0 V |
| U−B color index | −0.04 |
| B−V color index | −0.03 |
| Astrometry | |
| Radial velocity (Rv) | 13±7.4 km/s |
| Proper motion (μ) | RA: −18.630 mas/yr Dec.: +45.723 mas/yr |
| Parallax (π) | 11.3465±0.0387 mas |
| Distance | 287.5 ± 1.0 ly (88.1 ± 0.3 pc) |
| Absolute magnitude (MV) | +0.85 |
| Details | |
| Mass | 2.51±0.07 M☉ |
| Radius | 2.26±0.06 R☉ |
| Luminosity | 42.5 L☉ |
| Surface gravity (log g) | 4.15 cgs |
| Temperature | 10,251±384 K |
| Rotational velocity (v sin i) | 149 km/s |
| Age | 265 Myr |
| Other designations | |
| 30 G. Volantis, CPD−69°919, GC 11620, HD 72337, HIP 41451, HR 3370, SAO 250235 | |
| Database references | |
| SIMBAD | data |
HD 72337, also known as HR 3370, is a solitary, bluish-white hued star located in the southern constellation Volans. With an apparent magnitude of 5.51, it is faintly visible to the unaided eye but only under ideal conditions.
Velocity
Based on recent parallax measurements from the Gaia spacecraft, HD 72337 is currently located at a distance of 287 light years. The object made its closest approach 1.914 million years ago when it was 234 light years distant. At that distance, it brightened slightly to an apparent magnitude of 5.13. Currently, HR 3370 is receding with a heliocentric radial velocity of 10.7 km/s.
Properties
The stellar classification of HD 72337 is A0 V, indicating that it is an ordinary A-type main-sequence star. It has 2.25 times the radius of the Sun and a mass of 2.51 M☉. It radiates at 42.5 times the luminosity of the Sun from its photosphere at an effective temperature of 10,251 K. Like many hot stars, HD 72337 rotates rapidly with a projected rotational velocity of 149 km/s, and is estimated to be 265 million years old.
References
- 1 2 3 4 Anderson, E.; Francis, Ch. (2012). "XHIP: An extended hipparcos compilation". Astronomy Letters. 38 (5): 331. arXiv:1108.4971. Bibcode:2012AstL...38..331A. doi:10.1134/S1063773712050015. XHIP record for this object at VizieR.
- 1 2 3 4 5 6 7 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.
- 1 2 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.
- 1 2 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°. Bibcode:1975mcts.book.....H.
- 1 2 Johnson, H. L.; Mitchell, R. I.; Iriarte, B.; Wisniewski, W. Z. (1966). "UBVRIJKL Photometry of the Bright Stars". Communications of the Lunar and Planetary Laboratory. 4: 99–110. Bibcode:1966CoLPL...4...99J.
- 1 2 Kharchenko, N.V.; Scholz, R.-D.; Piskunov, A.E.; Röser, S.; Schilbach, E. (November 2007). "Astrophysical supplements to the ASCC-2.5: Ia. Radial velocities of ~55000 stars and mean radial velocities of 516 Galactic open clusters and associations". Astronomische Nachrichten. 328 (9): 889–896. arXiv:0705.0878. Bibcode:2007AN....328..889K. doi:10.1002/asna.200710776. eISSN 1521-3994. ISSN 0004-6337. S2CID 119323941.
- 1 2 Allende Prieto, C.; Lambert, D. L. (December 1999). "Fundamental parameters of nearby stars from the comparison with evolutionary calculations: masses, radii and effective temperatures". Astronomy and Astrophysics. 352: 555–562. arXiv:astro-ph/9911002. Bibcode:1999A&A...352..555A. ISSN 0004-6361.
- 1 2 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. eISSN 1538-3881.
- 1 2 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. eISSN 1365-2966. ISSN 0035-8711.
- 1 2 3 4 David, Trevor J.; Hillenbrand, Lynne A. (12 May 2015). "The Ages of Early-type Stars: Strömgren Photometric Methods Calibrated, Validated, Tested, and Applied to Hosts and Prospective Hosts of Directly Imaged Exoplanets". The Astrophysical Journal. 804 (2): 146. arXiv:1501.03154. Bibcode:2015ApJ...804..146D. doi:10.1088/0004-637X/804/2/146. eISSN 1538-4357.
- 1 2 Paunzen, E.; Schnell, A.; Maitzen, H. M. (October 2006). "An empirical temperature calibration for the Δa photometric system II: The A-type and mid F-type stars". Astronomy & Astrophysics. 458 (1): 293–296. arXiv:astro-ph/0607567. Bibcode:2006A&A...458..293P. doi:10.1051/0004-6361:20064889. eISSN 1432-0746. ISSN 0004-6361.
- ↑ "HD 72337". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved August 7, 2022.
- ↑ Eggleton, P. P.; Tokovinin, A. A. (11 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. eISSN 1365-2966. ISSN 0035-8711.
