Astronomy:Bubup
| Observation data Equinox J2000.0]] (ICRS) | |
|---|---|
| Constellation | Mensa |
| Right ascension | 05h 37m 02.01847s[1] |
| Declination | −73° 41′ 57.6320″[1] |
| Apparent magnitude (V) | 6.70 |
| Characteristics | |
| Spectral type | F9.5V |
| B−V color index | 0.540[2] |
| Astrometry | |
| Proper motion (μ) | RA: 138.785 ± 0.040[3] mas/yr Dec.: −108.526 ± 0.048[3] mas/yr |
| Parallax (π) | 26.2443 ± 0.0250[3] mas |
| Distance | 124.3 ± 0.1 ly (38.10 ± 0.04 pc) |
| Absolute magnitude (MV) | 3.82[2] |
| Details | |
| Mass | 1.085 ± 0.02[4] M☉ |
| Radius | 1.48 ± 0.05[4] R☉ |
| Luminosity | 2.35[2] L☉ |
| Temperature | 5998[5] K |
| Metallicity [Fe/H] | ≈−0.2[2] dex |
| Age | 6.76 ± 0.56[4] Gyr |
| Other designations | |
CD-73° 253, HIP 26380, SAO 256213 | |
| Database references | |
| SIMBAD | data |
Bubup,[6] originally named HD 38283, is a 7th magnitude F-type main sequence star located approximately 125 light-years away[1] in the constellation of Mensa. Bubup is not visible to the naked eyes for most people but can be easily seen using binoculars.
The survey in 2015 have ruled out the existence of any stellar companions at projected distances above 11 astronomical units.[7]
Name
Bubup was originally named HD 38283, as part of the Henry Draper catalogue. The star was given the name "Bubup", the Boonwurrung word for "child", by the IAU, chosen by representatives of Australia for the 2019 NameExoWorlds content.[6]
Planetary system
On April 11, 2011, a Saturnian planet, Yanyan (originally named HD 38283 b), was discovered in an Earth-like 363-day orbit.[2] Yanyan itself turns out to be unable to host habitable exomoons, both because of its significant eccentricity (for the single eccentric planet solution), and because of the overluminosity of its host star compared to the Sun.[2]
| Companion (in order from star) |
Mass | Semimajor axis (AU) |
Orbital period (days) |
Eccentricity | Inclination | Radius |
|---|---|---|---|---|---|---|
| b | ≥0.34 ± 0.02 MJ | 1.02 ± 0.07 | 363.2 ± 0.0056 | 0.41 ± 0.16 | — | — |
See also
- List of extrasolar planets detected by radial velocity
References
- ↑ 1.0 1.1 1.2 van Leeuwen, F. (2007). "Validation of the new Hipparcos reduction". Astronomy and Astrophysics 474 (2): 653–664. doi:10.1051/0004-6361:20078357. Bibcode: 2007A&A...474..653V. http://www.aanda.org/index.php?option=com_article&access=bibcode&Itemid=129&bibcode=2007A%2526A...474..653VFUL. Vizier catalog entry
- ↑ 2.0 2.1 2.2 2.3 2.4 2.5 2.6 Tinney (April 2011). "The Anglo-Australian Planet Search. XXI. A Gas-giant Planet in a One Year Orbit and the Habitability of Gas-giant Satellites". The Astrophysical Journal 732 (1): 31. doi:10.1088/0004-637x/732/1/31. Bibcode: 2011ApJ...732...31T.
- ↑ 3.0 3.1 3.2 Brown, A. G. A. (August 2018). "Gaia Data Release 2: Summary of the contents and survey properties". Astronomy & Astrophysics 616: A1. doi:10.1051/0004-6361/201833051. Bibcode: 2018A&A...616A...1G.
- ↑ 4.0 4.1 4.2 Takeda, Genya et al. (2007). "Structure and Evolution of Nearby Stars with Planets. II. Physical Properties of ∼1000 Cool Stars from the SPOCS Catalog". The Astrophysical Journal Supplement Series 168 (2): 297–318. doi:10.1086/509763. ISSN 0067-0049.VizieR reference
- ↑ Valenti, Jeff A.; Fischer, Debra A. (2005). "Spectroscopic Properties of Cool Stars (SPOCS). I. 1040 F, G, and K Dwarfs from Keck, Lick, and AAT Planet Search Programs". The Astrophysical Journal Supplement Series 159 (1): 141–166. doi:10.1086/430500. ISSN 0067-0049.VizieR reference
- ↑ 6.0 6.1 "Approved names (§ Australia)". IAU. http://www.nameexoworlds.iau.org/final-results. Retrieved 19 December 2019.
- ↑ 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). doi:10.1093/mnras/stv771. https://academic.oup.com/mnras/article/450/3/3127/1063872. Retrieved 19 June 2020.
Coordinates: 
05h 37m 02s, −73° 41′ 58″
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