astro.wikisort.org - Star89 Virginis is a single[9] star in the zodiac constellation of Virgo, located 234 light years from the Sun. It is visible to the naked eye as a dim, orange-hued star with an apparent visual magnitude of 4.959.[2] The star is moving closer to the Earth with a heliocentric radial velocity of −39 km/s.[1]
Star in the constellation Virgo
89 Virginis
Observation data Epoch J2000 Equinox J2000 |
Constellation |
Virgo |
Right ascension |
13h 49m 52.28340s[1] |
Declination |
−18° 08′ 03.0103″[1] |
Apparent magnitude (V) |
4.959[2] |
Characteristics |
Spectral type |
K0III[3] |
U−B color index |
+0.86[4] |
B−V color index |
+1.06[4] |
Astrometry |
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Radial velocity (Rv) | −39.45±0.17[1] km/s |
Proper motion (μ) | RA: −101.100[1] mas/yr Dec.: −38.200[1] mas/yr |
Parallax (π) | 13.9184 ± 0.2053 mas[1] |
Distance | 234 ± 3 ly (72 ± 1 pc) |
Absolute magnitude (MV) | 0.618[5] |
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Details |
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Mass | 1.70[6] M☉ |
Radius | 12[7] R☉ |
Luminosity | 69[6] L☉ |
Surface gravity (log g) | 2.6[7] cgs |
Temperature | 4,706±13[6] K |
Metallicity [Fe/H] | −0.03[7] dex |
Age | 3.40[6] Gyr |
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Other designations |
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Database references |
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SIMBAD | data |
This is an evolved giant star with a stellar classification of K0 III,[3] having exhausted the hydrogen at its core and expanded away from the main sequence. It is a red clump star, which indicates it is generating energy through helium fusion at its core.[5] This object is 3.4 billion years old with 1.7[6] times the mass of the Sun and 12[7] times the Sun's radius. It is radiating 69 times the Sun's luminosity from its enlarged photosphere at an effective temperature of 4706 K.[6]
References
- Brown, A. G. A.; et al. (Gaia collaboration) (August 2018). "Gaia Data Release 2: Summary of the contents and survey properties". Astronomy & Astrophysics. 616. A1. arXiv:1804.09365. Bibcode:2018A&A...616A...1G. doi:10.1051/0004-6361/201833051. Gaia DR2 record for this source at VizieR.
- Høg, E.; et al. (2000). "The Tycho-2 catalogue of the 2.5 million brightest stars". Astronomy and Astrophysics. 355: L27–L30. Bibcode:2000A&A...355L..27H.
- Houk, N.; Swift, C. (1999). "Michigan catalogue of two-dimensional spectral types for the HD Stars". Michigan Spectral Survey. 5: 0. Bibcode:1999MSS...C05....0H.
- Mermilliod, J.-C. (1986). "Compilation of Eggen's UBV data, transformed to UBV (unpublished)". Catalogue of Eggen's UBV Data. Bibcode:1986EgUBV........0M.
- Liu, Y. J.; et al. (2007), "The abundances of nearby red clump giants", Monthly Notices of the Royal Astronomical Society, 382 (2): 553–66, Bibcode:2007MNRAS.382..553L, doi:10.1111/j.1365-2966.2007.11852.x.
- Luck, R. Earle (2015). "Abundances in the Local Region. I. G and K Giants". The Astronomical Journal. 150 (3): 88. arXiv:1507.01466. Bibcode:2015AJ....150...88L. doi:10.1088/0004-6256/150/3/88. S2CID 118505114.
- Massarotti, Alessandro; Latham, David W.; Stefanik, Robert P.; Fogel, Jeffrey (2008). "Rotational and Radial Velocities for a Sample of 761 Hipparcos Giants and the Role of Binarity". The Astronomical Journal. 135 (1): 209–231. Bibcode:2008AJ....135..209M. doi:10.1088/0004-6256/135/1/209.
- "89 Vir". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2019-02-09.
- Eggleton, P. P.; Tokovinin, A. A. (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.
Virgo constellation |
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Stars (list) | |
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Star clusters | |
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Nebulae | |
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Galaxies | Messier | |
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NGC | |
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Other |
- A1689-zD1
- Abell 1835 IR1916
- Arp 240 (NGC 5257 and NGC 5258)
- Arp 271 (NGC 5426 and NGC 5427)
- BR 1202-0725
- 3C 273
- 3C 279
- 3C 298
- 4C 04.42
- Eyes Galaxies
- GR 8
- IC 1011
- IC 1101
- IC 3258
- IC 3328
- IRAS 12212+0305
- IRAS 13197−1627
- M60-UCD1
- Markarian 50
- Markarian 1318
- PG 1216+069
- PG 1244+026
- PG 1254+047
- PG 1307+085
- PG 1416−129
- PG 1426+015
- PKS 1148-001
- PKS 1167+014
- PKS 1217+023
- PKS 1229−021
- PKS 1302−102
- PKS 1335−127
- PKS 1402+044
- PKS 1405−076
- QSO B1208+1011
- QSO B1243−072
- QSO B1246−057
- QSO B1331+170
- RXJ1242−11
- SMM J14011+0252
- UM 448
- UM 461
- UM 462
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Galaxy clusters | |
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Other |
- GRB 930131
- GRB 030328
- GRB 050408
- GRB 050801
- GRB 080310
- North Polar Spur
- SN 1960F
- SN 1981B
- SN 1990B
- SN 1990N
- SN 1991T
- SN 1991bg
- SN 1994D
- SN 1999br
- SN 2002cx
- SN 2007bi
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