Wasp-61b

WASP-61
Observation data; Epoch J2000 Equinox J2000
Constellation	Lepus
Right ascension	05h 01m 11.9187s
Declination	−26° 03′ 14.9668″
Apparent magnitude (V)	12.49
Characteristics
Evolutionary stage	Main sequence
Spectral type	F7V
Astrometry
Radial velocity (Rv)	18.66 km/s
Proper motion (μ)	RA: 0.495 mas/ yr ; Dec.: 3.169 mas/ yr
Parallax (π)	2.0176 ± 0.0228 mas
Distance	1,620 ± 20 ly ; (496 ± 6 pc)
Details
Mass	1.22±0.07 M☉
Radius	1.36±0.03 R☉
Surface gravity (log g)	4.21±0.21 cgs
Temperature	6265±168 K
Metallicity [Fe/H]	-0.38±0.11 dex
Rotational velocity (v sin i)	10.3±0.5 km/s
Age	3.8+1.8; −0.9 Gyr
Other designations
	Gaia DR2 2959177048983750016, TYC 6469-1972-1, 2MASS J05011191-2603149
Database references
SIMBAD	data

WASP-61 is a single F-type main-sequence star about 1560 light-years away. The star is likely younger than the Sun at approximately 3.8^+1.8
_−0.9 billion years. WASP-61 is depleted in heavy elements, having just 40% of the solar abundance of iron.^[3]

Planetary system

In 2012 a transiting superjovian planet b was detected on a tight, circular orbit.^[5] Its equilibrium temperature is 1565±35 K.^[5]

The planetary orbit is well aligned with the equatorial plane of the star, misalignment equal to 4.0^+17.1
_−18.4°.^[6]

The WASP-61 planetary system^[2]
Companion (in order from star)	Mass	Semimajor axis ( AU)	Orbital period ( days)	Eccentricity	Inclination	Radius
b	2.05^+0.18 _−0.17 $M$ _J	0.05146^+0.00097 _−0.00099	3.8559000±0.000003	<0.074	89.35^+0.45 _−0.66^[5] °	1.41±0.22^[7] $R$ _J

References

^ ^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.
^ ^a ^b Bonomo, A. S.; et al. (2017), "The GAPS Programme with HARPS-N at TNG", Astronomy & Astrophysics, 602: A107, arXiv: 1704.00373, Bibcode: 2017A&A...602A.107B, doi: 10.1051/0004-6361/201629882, S2CID 118923163
^ ^a ^b ^c ^d Andreasen, D. T.; Sousa, S. G.; Tsantaki, M.; Teixeira, G. D. C.; Mortier, A.; Santos, N. C.; Suárez-Andrés, L.; Delgado-Mena, E.; Ferreira, A. C. S. (2017), "SWEET-Cat update and FASMA", Astronomy & Astrophysics, 600: A69, arXiv: 1703.06671, Bibcode: 2017A&A...600A..69A, doi: 10.1051/0004-6361/201629967, S2CID 119534579
^ "WASP-61". SIMBAD. Centre de données astronomiques de Strasbourg.
^ ^a ^b ^c Hellier, Coel; Anderson, D. R.; Collier Cameron, A.; Doyle, A. P.; Fumel, A.; Gillon, M.; Jehin, E.; Lendl, M.; Maxted, P. F. L.; Pepe, F.; Pollacco, D.; Queloz, D.; Ségransan, D.; Smalley, B.; Smith, A. M. S.; Southworth, J.; Triaud, A. H. M. J.; Udry, S.; West, R. G. (2012), "Seven transiting hot-Jupiters from WASP-South, Euler and TRAPPIST: WASP-47b, WASP-55b, WASP-61b, WASP-62b, WASP-63b, WASP-66b & WASP-67b", Monthly Notices of the Royal Astronomical Society, 426 (1): 739–750, arXiv: 1204.5095, Bibcode: 2012MNRAS.426..739H, doi: 10.1111/j.1365-2966.2012.21780.x, S2CID 54713354
^ Brown, D. J. A.; Triaud, A. H. M. J.; Doyle, A. P.; Gillon, M.; Lendl, M.; Anderson, D. R.; Collier Cameron, A.; Hébrard, G.; Hellier, C.; Lovis, C.; Maxted, P. F. L.; Pepe, F.; Pollacco, D.; Queloz, D.; Smalley, B. (2016), "Rossiter–Mc Laughlin models and their effect on estimates of stellar rotation, illustrated using six WASP systems", Monthly Notices of the Royal Astronomical Society, 464: 810–839, arXiv: 1610.00600, doi: 10.1093/mnras/stw2316
^ Stassun, Keivan G.; Collins, Karen A.; Gaudi, B. Scott (2016), "Accurate Empirical Radii and Masses of Planets and Their Host Stars with Gaia Parallaxes", The Astronomical Journal, 153 (3): 136, arXiv: 1609.04389, Bibcode: 2017AJ....153..136S, doi: 10.3847/1538-3881/aa5df3, S2CID 119219062

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[dr2-1] ^ ^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.

[Bonomo2017-2] Bonomo, A. S.; et al. (2017), "The GAPS Programme with HARPS-N at TNG", Astronomy & Astrophysics, 602: A107, arXiv: 1704.00373, Bibcode: 2017A&A...602A.107B, doi: 10.1051/0004-6361/201629882, S2CID 118923163

[Andreasen2017-3] Andreasen, D. T.; Sousa, S. G.; Tsantaki, M.; Teixeira, G. D. C.; Mortier, A.; Santos, N. C.; Suárez-Andrés, L.; Delgado-Mena, E.; Ferreira, A. C. S. (2017), "SWEET-Cat update and FASMA", Astronomy & Astrophysics, 600: A69, arXiv: 1703.06671, Bibcode: 2017A&A...600A..69A, doi: 10.1051/0004-6361/201629967, S2CID 119534579

[simbad-4] "WASP-61". SIMBAD. Centre de données astronomiques de Strasbourg.

[Hellier2012-5] Hellier, Coel; Anderson, D. R.; Collier Cameron, A.; Doyle, A. P.; Fumel, A.; Gillon, M.; Jehin, E.; Lendl, M.; Maxted, P. F. L.; Pepe, F.; Pollacco, D.; Queloz, D.; Ségransan, D.; Smalley, B.; Smith, A. M. S.; Southworth, J.; Triaud, A. H. M. J.; Udry, S.; West, R. G. (2012), "Seven transiting hot-Jupiters from WASP-South, Euler and TRAPPIST: WASP-47b, WASP-55b, WASP-61b, WASP-62b, WASP-63b, WASP-66b & WASP-67b", Monthly Notices of the Royal Astronomical Society, 426 (1): 739–750, arXiv: 1204.5095, Bibcode: 2012MNRAS.426..739H, doi: 10.1111/j.1365-2966.2012.21780.x, S2CID 54713354

[6] Brown, D. J. A.; Triaud, A. H. M. J.; Doyle, A. P.; Gillon, M.; Lendl, M.; Anderson, D. R.; Collier Cameron, A.; Hébrard, G.; Hellier, C.; Lovis, C.; Maxted, P. F. L.; Pepe, F.; Pollacco, D.; Queloz, D.; Smalley, B. (2016), "Rossiter–Mc Laughlin models and their effect on estimates of stellar rotation, illustrated using six WASP systems", Monthly Notices of the Royal Astronomical Society, 464: 810–839, arXiv: 1610.00600, doi: 10.1093/mnras/stw2316

[7] Stassun, Keivan G.; Collins, Karen A.; Gaudi, B. Scott (2016), "Accurate Empirical Radii and Masses of Planets and Their Host Stars with Gaia Parallaxes", The Astronomical Journal, 153 (3): 136, arXiv: 1609.04389, Bibcode: 2017AJ....153..136S, doi: 10.3847/1538-3881/aa5df3, S2CID 119219062

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Observation data Epoch J2000 Equinox J2000
Constellation	Lepus
Right ascension	05^h 01^m 11.9187^s^[1]
Declination	−26° 03′ 14.9668″^[1]
Apparent magnitude (V)	12.49
Characteristics
Evolutionary stage	Main sequence
Spectral type	F7V
Astrometry

Radial velocity (R_v)	18.66^[1] km/s
Proper motion (μ)	RA: 0.495^[1] mas/ yr Dec.: 3.169^[1] mas/ yr
Parallax (π)	2.0176 ± 0.0228 mas^[1]
Distance	1,620 ± 20 ly (496 ± 6 pc)

Details^[2]

Mass	1.22±0.07 `M`_☉
Radius	1.36±0.03 `R`_☉
Surface gravity (log g)	4.21±0.21^[3] cgs
Temperature	6265±168^[3] K
Metallicity [Fe/H]	-0.38±0.11^[3] dex
Rotational velocity (v sin i)	10.3±0.5 km/s
Age	3.8^+1.8 _−0.9 Gyr

Other designations
Gaia DR2 2959177048983750016, TYC 6469-1972-1, 2MASS J05011191-2603149^[4]
Database references
SIMBAD	data