astro.wikisort.org - StarHD 107148 is an 8th magnitude primary of the binary star system located approximately 161 light years away in the constellation of Virgo. It is a yellow dwarf with a luminosity 1.41 times the Sun. It is twice as enriched with heavy elements than the Sun. The HD 107148 exhibits a magnetic activity cycle with a period around 6 years.[6]
Star in the constellation Virgo
HD 107148
Observation data Epoch J2000.0 Equinox J2000.0 |
Constellation |
Virgo |
Right ascension |
12h 19m 13.4909s[1] |
Declination |
−03° 19′ 11.242″[1] |
Apparent magnitude (V) |
8.02 |
Characteristics |
Spectral type |
G5V |
Astrometry |
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|
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Proper motion (μ) | RA: −54.787±0.108[1] mas/yr Dec.: −47.395±0.064[1] mas/yr |
Parallax (π) | 20.2077 ± 0.0470 mas[1] |
Distance | 161.4 ± 0.4 ly (49.5 ± 0.1 pc) |
|
Orbit[2] |
---|
Primary | HD 107148 |
Companion | HD 107148 B |
Semi-major axis (a) | 35" (1790 AU) |
Details[3] |
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HD 107148 |
---|
Mass | 1.1±0.1 M☉ |
Radius | 1.15±0.03 R☉ |
Luminosity | 1.34±0.05 L☉ |
Surface gravity (log g) | 4.35±0.03 cgs |
Temperature | 5789±36 K |
Metallicity [Fe/H] | 0.33±0.09[4] dex |
Rotational velocity (v sin i) | 1.22±0.20[4] km/s |
Age | 4±1 Gyr |
HD 107148 B |
---|
Mass | 0.6[2] M☉ |
Temperature | 6250±250[2] K |
Other designations |
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|
Database references |
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SIMBAD | data |
In 2012, a comoving white dwarf stellar companion HD 107148 B was detected[7] at projected separation of 1790 AU, and was confirmed in 2014. It is a 0.6 M☉ remnant core of the former 1.8±0.2 M☉ star.[2]
Planetary system
In 2006, a discovery of Saturn-mass planet was announced.[8] Another Neptune-sized planet was discovered in 2021, together with significantly refined orbit of HD 107148 b.[6]
HD 107148 should not be confused with HD 108147, which also has an extrasolar planet located in Crux constellation discovered in 2000.
The HD 107148 planetary system[9]
Companion (in order from star) |
Mass |
Semimajor axis (AU) |
Orbital period (days) |
Eccentricity |
Inclination |
Radius |
b |
>0.196±0.009 MJ |
0.3692+0.0037 −0.0038 |
77.185+0.01 −0.025 |
0.15+0.02 −0.06 |
— |
— |
c |
> 0.068+0.004 −0.005 MJ |
0.1415±0.0015 |
18.3270+0.0008 −0.0016 |
0.40+0.04 −0.08 |
— |
— |
See also
- List of extrasolar planets
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.
- New wide stellar companions of exoplanet host stars
- Bonfanti, A.; Ortolani, S.; Nascimbeni, V. (2015), "Age consistency between exoplanet hosts and field stars", Astronomy & Astrophysics, 585: A5, arXiv:1511.01744, doi:10.1051/0004-6361/201527297, S2CID 53971692
- Spectroscopic Parameters and atmosphEric ChemIstriEs of Stars (SPECIES) I. Code description and dwarf stars catalogue
- "HD 107148". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2018-11-12.
- Rosenthal, Lee J.; Fulton, Benjamin J.; Hirsch, Lea A.; Isaacson, Howard T.; Howard, Andrew W.; Dedrick, Cayla M.; Sherstyuk, Ilya A.; Blunt, Sarah C.; Petigura, Erik A.; Knutson, Heather A.; Behmard, Aida; Chontos, Ashley; Crepp, Justin R.; Crossfield, Ian J. M.; Dalba, Paul A.; Fischer, Debra A.; Henry, Gregory W.; Kane, Stephen R.; Kosiarek, Molly; Marcy, Geoffrey W.; Rubenzahl, Ryan A.; Weiss, Lauren M.; Wright, Jason T. (2021), The California Legacy Survey I. A Catalog of 177 Planets from Precision Radial Velocity Monitoring of 719 Nearby Stars over Three Decades, arXiv:2105.11583
- Wide companions to Hipparcos stars within 67 pc of the Sun
- Butler, R. P.; et al. (2006). "Catalog of Nearby Exoplanets". The Astrophysical Journal. 646 (1): 505–522. arXiv:astro-ph/0607493. Bibcode:2006ApJ...646..505B. doi:10.1086/504701. S2CID 119067572.
- Dynamical architecture of the HD 107148 system, 2022, arXiv:2202.06702
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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На других языках
[de] HD 107148
HD 107148 ist ein 167 Lichtjahre von der Erde entfernter Gelber Zwerg im Sternbild Jungfrau. Er besitzt eine scheinbare Helligkeit von 8,0 mag.
- [en] HD 107148
[es] HD 107148
HD 107148 (HIP 60081 / SAO 138714 / BD-02 3497)[1] es una estrella en la constelación de Virgo de magnitud aparente +8,02, situada 3º al sur del ecuador celeste. Se encuentra a 167 años luz de distancia del Sistema Solar. Desde 2006 se conoce la existencia de un planeta extrasolar en órbita alrededor de esta estrella.[2]
[ru] HD 107148
HD 107148 — звезда восьмой звездной величины, расположенная примерно в 167 световых годах от Земли в созвездии Девы. Звезда является жёлтым карликом со светимостью 1,41 раза больше солнечной. HD 107148 в два раза богаче тяжелыми элементами, чем Солнце. В 2006 году была открыта планета имеющая массу Сатурна у звезды[5].
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