astro.wikisort.org - PlanetHD 148156 is an 8th magnitude G-type main sequence star located approximately 168 light years away in the constellation Norma. This star is larger, hotter, brighter, and more massive than the Sun, and its metal content is almost twice as much.
9th magnitude G-type main sequence star in the constellation Norma
HD 148156
Observation data Epoch J2000.0 Equinox J2000.0 |
Constellation |
Norma |
Right ascension |
16h 28m 17.284s[1] |
Declination |
–46° 19′ 03.46″[1] |
Apparent magnitude (V) |
7.71 |
Characteristics |
Spectral type |
G1V |
Apparent magnitude (B) |
8.22 |
Apparent magnitude (J) |
6.688 |
Apparent magnitude (H) |
6.489 |
Apparent magnitude (K) |
6.397 |
B−V color index |
0.51 |
Astrometry |
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Radial velocity (Rv) | –2.0 km/s |
Proper motion (μ) | RA: 44.88±0.94[1] mas/yr Dec.: 28.10±0.74[1] mas/yr |
Parallax (π) | 19.38 ± 0.75 mas[1] |
Distance | 168 ± 7 ly (52 ± 2 pc) |
Absolute magnitude (MV) | 4.09 |
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Details |
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Mass | 1.15 M☉ |
Radius | 1.28±0.12 R☉ |
Luminosity | 1.902±0.235 L☉ |
Surface gravity (log g) | 4.31 cgs |
Temperature | 6010±100 K |
Metallicity | 0.29 |
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Other designations |
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CD–46°10768, HIP 80680, PPM 321761, SAO 226791 |
Database references |
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SIMBAD | data |
Exoplanet Archive | data |
Extrasolar Planets Encyclopaedia | data |
The survey in 2015 have ruled out the existence of any additional stellar companions at projected distances from 49 to 345 astronomical units.[2]
Planetary system
In 2009, a gas giant planet was found in orbit around the star.[3]
The HD 148156 planetary system[3]
Companion (in order from star) |
Mass |
Semimajor axis (AU) |
Orbital period (days) |
Eccentricity |
Inclination |
Radius |
b |
≥ 0.85+0.67 −0.05 MJ |
2.45+0.04 −0.05 |
1027±28 |
0.52+0.04 −0.09 |
— |
— |
See also
- List of extrasolar planets
References
- van Leeuwen, F. (2007). "Validation of the new Hipparcos reduction". Astronomy and Astrophysics. 474 (2): 653–664. arXiv:0708.1752. Bibcode:2007A&A...474..653V. doi:10.1051/0004-6361:20078357. S2CID 18759600. Vizier catalog entry
- Mugrauer, M.; Ginski, C. (12 May 2015). "High-contrast imaging search for stellar and substellar companions of exoplanet host stars". Monthly Notices of the Royal Astronomical Society. 450 (3): 3127–3136. doi:10.1093/mnras/stv771. Retrieved 19 June 2020.
- Naef, Dominique; Mayor, Michel; Lo Curto, Gaspare; Bouchy, François; Lovis, Christophe; Moutou, Claire; Benz, Willy; Pepe, Francesco; Queloz, Didier; Santos, Nuno C.; Ségransan, Damien; Udry, Stéphane; Bonfils, Xavier; Delfosse, Xavier; Forveille, Thierry; Hébrard, Guillaume; Mordasini, Christoph; Perrier, Christian; Boisse, Isabelle; Sosnowska, Danuta (2010). "The HARPS Search for Southern Extrasolar Planets XXIII. 8 Planetary Companions to Low-activity Solar-type Stars". Astronomy and Astrophysics. 523: A15. arXiv:1008.4600. Bibcode:2010A&A...523A..15N. doi:10.1051/0004-6361/200913616. S2CID 118845989.
Constellation of Norma |
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Stars | Bayer | |
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Variable | |
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HR |
- 5798
- 5803
- 5832
- 5836
- 5865
- 5869
- 5871
- 5872
- 5882
- 5900
- 5921
- 5937
- 5946
- 5979
- 6040
- 6049
- 6059
- 6473
- 6083
- 6085
- 6099
- 6114
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HD | |
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Other | |
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На других языках
- [en] HD 148156
[ru] HD 148156
HD 148156 — звезда, которая находится в созвездии Наугольник на расстоянии приблизительно 168 световых лет от нас. Вокруг звезды обращается, как минимум, одна планета.
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