WASP-54

WASP-54
Observation data; Epoch J2000 Equinox J2000
Constellation	Virgo
Right ascension	13h 41m 49.0302s
Declination	−00° 07′ 41.034″
Apparent magnitude (V)	10.41
Characteristics
Evolutionary stage	subgiant
Spectral type	F8V
Astrometry
Radial velocity (Rv)	−2.82 km/s
Proper motion (μ)	RA: −24.685 mas/yr ; Dec.: −4.687 mas/yr
Parallax (π)	3.9522±0.0692 mas
Distance	830 ± 10 ly ; (253 ± 4 pc)
Orbit
Primary	WASP-54A
Companion	WASP-54B
Semi-major axis (a)	5.728±0.006"; (1450 AU)
Details
WASP-54A
Mass	1.213±0.032 M☉
Radius	1.828+0.091; −0.081 R☉
Surface gravity (log g)	4.00±0.02 cgs
Temperature	6100±100 K
Metallicity [Fe/H]	-0.27±0.08 dex
Rotational velocity (v sin i)	4.0±0.8 km/s
Age	6.9+1.0; −1.9 Gyr
WASP-54B
Mass	0.19±0.01 M☉
Temperature	3216+26; −25 K
Other designations
	BD+00 3088, Gaia DR2 3661983850663908608, TYC 4967-678-1, GSC 04967-00678, 2MASS J13414903-0007410
Database references
SIMBAD	data
	B

WASP-54, also known as BD+00 3088, is a binary star system about 825 light-years away. The primary, WASP-54A, is a -type subgiant, accompanied by the red dwarf WASP-54B on a wide orbit. WASP-54 is depleted in heavy elements, having 55% of the solar abundance of iron.^[8] The age of WASP-54 is slightly older than the Sun's at 6.9^+1.0
_−1.9 billion years.^[8]

Star system

A multiplicity survey in 2017 detected a red dwarf stellar companion WASP-54B 5.7″ away from WASP-54A.^[11] The companion was proven to be co-moving in 2020.^[7]

Planetary system

In 2012 a transiting hot Jupiter planet b was detected on a tight, mildly eccentric^[8] orbit around WASP-54A.^[12]

Planetary equilibrium temperature is 1742+49
−69 K.^[12]

The WASP-54 planetary system^[8]
Companion (in order from star)	Mass	Semimajor axis (AU)	Orbital period (days)	Eccentricity	Inclination	Radius
b	0.606±0.018 $M$ _J	0.04988^+0.00043 _−0.00045	3.6936411±0.0000059	<0.06	84.97±0.61°	1.653^+0.090 _−0.083 $R$ _J

References

^ Roman, Nancy G. (1987). "Identification of a constellation from a position". Publications of the Astronomical Society of the Pacific. 99 (617): 695. Bibcode:1987PASP...99..695R. doi:10.1086/132034. Constellation record for this object at VizieR.
^ ^a ^b ^c ^d ^e ^f 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.; Fabricius, C.; Makarov, V. V.; Urban, S.; Corbin, T.; Wycoff, G.; Bastian, U.; Schwekendiek, P.; Wicenec, A. (2000). "The Tycho-2 catalogue of the 2.5 million brightest stars". Astronomy and Astrophysics. 355. Bibcode:2000A&A...355L..27H.
^ Irwin, Stacy Ann (2015). Analysis of Angular Momentum in Planetary Systems and Host Stars (Thesis). Bibcode:2015PhDT.........5I.
^ Huang, Yang; Beers, Timothy C.; Wolf, Christian; Lee, Young Sun; Onken, Christopher A.; Yuan, Haibo; Shank, Derek; Zhang, Huawei; Wang, Chun; Shi, Jianrong; Fan, Zhou (2022). "Beyond Spectroscopy. I. Metallicities, Distances, and Age Estimates for over 20 Million Stars from SMSS DR2 and Gaia EDR3". The Astrophysical Journal. 925 (2): 164. arXiv:2104.14154. Bibcode:2022ApJ...925..164H. doi:10.3847/1538-4357/ac21cb.
^ Pickles, A.; Depagne, É. (2010). "All-Sky Spectrally Matched UBVRI - ZY and u^‧ g^‧ r^‧ i^‧ z^‧ Magnitudes for Stars in the Tycho2 Catalog". Publications of the Astronomical Society of the Pacific. 122 (898): 1437. arXiv:1011.2020. Bibcode:2010PASP..122.1437P. doi:10.1086/657947.
^ ^a ^b ^c ^d Bohn, A. J.; Southworth, J.; Ginski, C.; Kenworthy, M. A.; Maxted, P. F. L.; Evans, D. F. (2020), "A multiplicity study of transiting exoplanet host stars. I. High-contrast imaging with VLT/SPHERE", Astronomy & Astrophysics, 635: A73, arXiv:2001.08224, Bibcode:2020A&A...635A..73B, doi:10.1051/0004-6361/201937127, S2CID 210861118
^ ^a ^b ^c ^d ^e Bonomo, A. S.; Desidera, S.; Benatti, S.; Borsa, F.; Crespi, S.; Damasso, M.; Lanza, A. F.; Sozzetti, A.; Lodato, G.; Marzari, F.; Boccato, C.; Claudi, R. U.; Cosentino, R.; Covino, E.; Gratton, R.; Maggio, A.; Micela, G.; Molinari, E.; Pagano, I.; Piotto, G.; Poretti, E.; Smareglia, R.; Affer, L.; Biazzo, K.; Bignamini, A.; Esposito, M.; Giacobbe, P.; Hébrard, G.; Malavolta, L.; et al. (2017), "The GAPS Programme with HARPS-N@TNG XIV. Investigating giant planet migration history via improved eccentricity and mass determination for 231 transiting planets", Astronomy & Astrophysics, A107: 602, arXiv:1704.00373, Bibcode:2017A&A...602A.107B, doi:10.1051/0004-6361/201629882, S2CID 118923163
^ Correcting the spectroscopic surface gravity using transits and asteroseismology No significant effect on temperatures or metallicities with ARES and MOOG in local thermodynamic equilibrium
^ "BD+00 3088". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2025-05-05.
^ Evans, D. F.; Southworth, J.; Smalley, B.; Jørgensen, U. G.; Dominik, M.; Andersen, M. I.; Bozza, V.; Bramich, D. M.; Burgdorf, M. J.; Ciceri, S.; d'Ago, G.; Figuera Jaimes, R.; Gu, S.-H.; Hinse, T. C.; Henning, Th.; Hundertmark, M.; Kains, N.; Kerins, E.; Korhonen, H.; Kokotanekova, R.; Kuffmeier, M.; Longa-Peña, P.; Mancini, L.; MacKenzie, J.; Popovas, A.; Rabus, M.; Rahvar, S.; Sajadian, S.; Snodgrass, C.; et al. (2017), "High-resolution Imaging of Transiting Extrasolar Planetary systems (HITEP). II. Lucky Imaging results from 2015 and 2016", Astronomy & Astrophysics, 610: A20, arXiv:1709.07476, Bibcode:2018A&A...610A..20E, doi:10.1051/0004-6361/201731855, S2CID 53400492
^ ^a ^b Faedi, F.; Pollacco, D.; Barros, S. C. C.; Brown, D.; Collier Cameron, A.; Doyle, A. P.; Enoch, R.; Gillon, M.; Gómez Maqueo Chew, Y.; Hébrard, G.; Lendl, M.; Liebig, C.; Smalley, B.; Triaud, A. H. M. J.; West, R. G.; Wheatley, P. J.; Alsubai, K. A.; Anderson, D. R.; Armstrong, D.; Bento, J.; Bochinski, J.; Bouchy, F.; Busuttil, R.; Fossati, L.; Fumel, A.; Haswell, C. A.; Hellier, C.; Holmes, S.; Jehin, E.; et al. (2012), "WASP-54b, WASP-56b and WASP-57b: Three new sub-Jupiter mass planets from SuperWASP", Astronomy & Astrophysics, 551: A73, arXiv:1210.2329, doi:10.1051/0004-6361/201220520, S2CID 14346225

[constellation-1] Roman, Nancy G. (1987). "Identification of a constellation from a position". Publications of the Astronomical Society of the Pacific. 99 (617): 695. Bibcode:1987PASP...99..695R. doi:10.1086/132034. Constellation record for this object at VizieR.

[dr2-2] ^ ^a ^b ^c ^d ^e ^f 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.

[tycho2-3] Høg, E.; Fabricius, C.; Makarov, V. V.; Urban, S.; Corbin, T.; Wycoff, G.; Bastian, U.; Schwekendiek, P.; Wicenec, A. (2000). "The Tycho-2 catalogue of the 2.5 million brightest stars". Astronomy and Astrophysics. 355. Bibcode:2000A&A...355L..27H.

[irwin2015-4] Irwin, Stacy Ann (2015). Analysis of Angular Momentum in Planetary Systems and Host Stars (Thesis). Bibcode:2015PhDT.........5I.

[huang2022-5] Huang, Yang; Beers, Timothy C.; Wolf, Christian; Lee, Young Sun; Onken, Christopher A.; Yuan, Haibo; Shank, Derek; Zhang, Huawei; Wang, Chun; Shi, Jianrong; Fan, Zhou (2022). "Beyond Spectroscopy. I. Metallicities, Distances, and Age Estimates for over 20 Million Stars from SMSS DR2 and Gaia EDR3". The Astrophysical Journal. 925 (2): 164. arXiv:2104.14154. Bibcode:2022ApJ...925..164H. doi:10.3847/1538-4357/ac21cb.

[pickles2010-6] Pickles, A.; Depagne, É. (2010). "All-Sky Spectrally Matched UBVRI - ZY and u^‧ g^‧ r^‧ i^‧ z^‧ Magnitudes for Stars in the Tycho2 Catalog". Publications of the Astronomical Society of the Pacific. 122 (898): 1437. arXiv:1011.2020. Bibcode:2010PASP..122.1437P. doi:10.1086/657947.

[Bohn2020-7] Bohn, A. J.; Southworth, J.; Ginski, C.; Kenworthy, M. A.; Maxted, P. F. L.; Evans, D. F. (2020), "A multiplicity study of transiting exoplanet host stars. I. High-contrast imaging with VLT/SPHERE", Astronomy & Astrophysics, 635: A73, arXiv:2001.08224, Bibcode:2020A&A...635A..73B, doi:10.1051/0004-6361/201937127, S2CID 210861118

[Bonomo2017-8] Bonomo, A. S.; Desidera, S.; Benatti, S.; Borsa, F.; Crespi, S.; Damasso, M.; Lanza, A. F.; Sozzetti, A.; Lodato, G.; Marzari, F.; Boccato, C.; Claudi, R. U.; Cosentino, R.; Covino, E.; Gratton, R.; Maggio, A.; Micela, G.; Molinari, E.; Pagano, I.; Piotto, G.; Poretti, E.; Smareglia, R.; Affer, L.; Biazzo, K.; Bignamini, A.; Esposito, M.; Giacobbe, P.; Hébrard, G.; Malavolta, L.; et al. (2017), "The GAPS Programme with HARPS-N@TNG XIV. Investigating giant planet migration history via improved eccentricity and mass determination for 231 transiting planets", Astronomy & Astrophysics, A107: 602, arXiv:1704.00373, Bibcode:2017A&A...602A.107B, doi:10.1051/0004-6361/201629882, S2CID 118923163

[9] Correcting the spectroscopic surface gravity using transits and asteroseismology No significant effect on temperatures or metallicities with ARES and MOOG in local thermodynamic equilibrium

[simbad-10] "BD+00 3088". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2025-05-05.

[11] Evans, D. F.; Southworth, J.; Smalley, B.; Jørgensen, U. G.; Dominik, M.; Andersen, M. I.; Bozza, V.; Bramich, D. M.; Burgdorf, M. J.; Ciceri, S.; d'Ago, G.; Figuera Jaimes, R.; Gu, S.-H.; Hinse, T. C.; Henning, Th.; Hundertmark, M.; Kains, N.; Kerins, E.; Korhonen, H.; Kokotanekova, R.; Kuffmeier, M.; Longa-Peña, P.; Mancini, L.; MacKenzie, J.; Popovas, A.; Rabus, M.; Rahvar, S.; Sajadian, S.; Snodgrass, C.; et al. (2017), "High-resolution Imaging of Transiting Extrasolar Planetary systems (HITEP). II. Lucky Imaging results from 2015 and 2016", Astronomy & Astrophysics, 610: A20, arXiv:1709.07476, Bibcode:2018A&A...610A..20E, doi:10.1051/0004-6361/201731855, S2CID 53400492

[Faedi2012-12] Faedi, F.; Pollacco, D.; Barros, S. C. C.; Brown, D.; Collier Cameron, A.; Doyle, A. P.; Enoch, R.; Gillon, M.; Gómez Maqueo Chew, Y.; Hébrard, G.; Lendl, M.; Liebig, C.; Smalley, B.; Triaud, A. H. M. J.; West, R. G.; Wheatley, P. J.; Alsubai, K. A.; Anderson, D. R.; Armstrong, D.; Bento, J.; Bochinski, J.; Bouchy, F.; Busuttil, R.; Fossati, L.; Fumel, A.; Haswell, C. A.; Hellier, C.; Holmes, S.; Jehin, E.; et al. (2012), "WASP-54b, WASP-56b and WASP-57b: Three new sub-Jupiter mass planets from SuperWASP", Astronomy & Astrophysics, 551: A73, arXiv:1210.2329, doi:10.1051/0004-6361/201220520, S2CID 14346225

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WASP-54

Star system

Planetary system

References

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