WASP-6 / Márohu
Observation data
Epoch J2000.0      Equinox J2000.0
Constellation Aquarius[1]
Right ascension 23h 12m 37.73683s[2]
Declination −22° 40′ 26.2738″[2]
Apparent magnitude (V) 11.9[3]
Characteristics
Evolutionary stage Main sequence
Spectral type G8V[3]
Apparent magnitude (B) ~12.9[4]
Apparent magnitude (R) ~11.9[4]
Apparent magnitude (J) 10.769 ±0.026[4]
Apparent magnitude (H) 10.445 ±0.025[4]
Apparent magnitude (K) 10.325 ±0.025[4]
Astrometry
Radial velocity (Rv)11.84±0.89[2] km/s
Proper motion (μ) RA: −23.264(15) mas/yr[2]
Dec.: −37.143(14) mas/yr[2]
Parallax (π)5.0073 ± 0.0130 mas[2]
Distance651 ± 2 ly
(199.7 ± 0.5 pc)
Details[5]
Mass0.880+0.050
−0.080 M☉
Radius0.870+0.025
−0.036 R☉
Temperature5450±100 K
Metallicity [Fe/H]−0.200±0.090 dex
Rotation23.80±0.15 d
Rotational velocity (v sin i)1.4±1.0 km/s
Age11.0+3.0
−7.0 Gyr
Other designations
Márohu, TOI-231, TIC 204376737, WASP-6, TYC 6972-75-1, 2MASS J23123773-2240261, DENIS J231237.7-224025, UCAC2 22823425[4]
Database references
SIMBADdata

WASP-6, also officially named Márohu, is a type-G yellow dwarf star located about 651 light-years (200 parsecs) away in the Aquarius constellation. Dim at magnitude 12, it is visible through a moderate sized amateur telescope. The star is about 80% of the size and mass of the Sun and it is a little cooler.[4] Starspots in the WASP-6 system helped to refine the measurements of the mass and the radius of the planet WASP-6b.[6]

Nomenclature

The designation WASP-6 indicates that this was the 6th star found to have a planet by the Wide Angle Search for Planets.

In 2019 the IAU announced that WASP-6 and its planet WASP-6b would be given official names chosen by the public from the proposals collected in a national campaign from the Dominican Republic, as part of NameExoWorlds.[7][8] The star WASP-6 is named Márohu and its planet Boinayel from the proposal received by Marvin del Cid. Márohu, the cemí of drought, is the protector of the Sun.[9][10]

Planetary system

The SuperWASP project announced that this star has an exoplanet, WASP-6b, in 2008. This object was detected by the astronomical transit method.[3]

The WASP-6 planetary system[5]
Companion
(in order from star)		 Mass Semimajor axis
(AU)		 Orbital period
(days)		 Eccentricity Inclination Radius
b / Boinayel 0.483+0.026
−0.030 MJ		 0.04217+0.00079
−0.0012		 3.36100239(37) <0.070 88.47+0.65
−0.47°		 1.224+0.051
−0.052 RJ

See also

References

  1. ↑ "Exoplanet Transit Database".
  2. 1 2 3 4 5 6 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.
  3. 1 2 3 Gillon; Anderson, D. R.; Triaud, A. H. M. J.; Hellier, C.; Maxted, P. F. L.; Pollaco, D.; Queloz, D.; Smalley, B.; et al. (2009). "Discovery and characterization of WASP-6b, an inflated sub-Jupiter mass planet transiting a solar-type star". Astronomy and Astrophysics. 501 (2): 785–792. arXiv:0901.4705. Bibcode:2009A&A...501..785G. doi:10.1051/0004-6361/200911749. S2CID 53607680.
  4. 1 2 3 4 5 6 7 "WASP-6". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 10 December 2023.
  5. 1 2 Bonomo, A. S.; Desidera, S.; et al. (June 2017). "The GAPS Programme with HARPS-N at TNG. XIV. Investigating giant planet migration history via improved eccentricity and mass determination for 231 transiting planets". Astronomy & Astrophysics. 602: A107. arXiv:1704.00373. Bibcode:2017A&A...602A.107B. doi:10.1051/0004-6361/201629882.
  6. ↑ Tregloan-Reed, Jeremy; Southworth, John; Burgdorf, M.; Novati, S. Calchi; Dominik, M.; Finet, F.; Jørgensen, U. G.; Maier, G.; Mancini, L.; Prof, S.; Ricci, D.; Snodgrass, C.; Bozza, V.; Browne, P.; Dodds, P.; Gerner, T.; Harpsøe, K.; Hinse, T. C.; Hundertmark, M.; Kains, N.; Kerins, E.; Liebig, C.; Penny, M. T.; Rahvar, S.; Sahu, K.; Scarpetta, G.; Schäfer, S.; Schönebeck, F.; Skottfelt, J.; Surdej, J. (2015-06-21). "Transits and starspots in the WASP-6 planetary system". Monthly Notices of the Royal Astronomical Society. 450 (2): 1760–1769. arXiv:1503.09184. Bibcode:2015MNRAS.450.1760T. doi:10.1093/mnras/stv730. ISSN 0035-8711.
  7. ↑ "NameExoWorlds". 2019. Retrieved 6 September 2019.
  8. ↑ "Naming". 2019. Retrieved 6 September 2019.
  9. ↑ "Approved names". NameExoworlds. Retrieved 2020-01-02.
  10. ↑ "International Astronomical Union | IAU". www.iau.org. Retrieved 2020-01-02.
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