WASP-67

WASP-67
Observation data; Epoch J2000 Equinox J2000
Constellation	Sagittarius
Right ascension	19h 42m 58.5217s
Declination	−19° 56′ 58.523″
Apparent magnitude (V)	12.54
Characteristics
Evolutionary stage	Main sequence
Spectral type	K0V
Astrometry
Radial velocity (Rv)	0.29 km/s
Proper motion (μ)	RA: 1.759 mas/yr ; Dec.: −32.902 mas/yr
Parallax (π)	5.2496 ± 0.0427 mas
Distance	621 ± 5 ly ; (190 ± 2 pc)
Details
Mass	0.91±0.28 M☉
Radius	0.88±0.08 R☉
Surface gravity (log g)	4.35±0.15 cgs
Temperature	5200±100 K
Metallicity [Fe/H]	−0.07 dex
Rotational velocity (v sin i)	2.1±0.4 km/s
Age	8.7+5.5; −8.6 Gyr
Other designations
	Gaia DR2 6868476691490044672, WASP-67, TYC 6307-1388-1, 2MASS J19425852-1956585
Database references
SIMBAD	data

WASP-67 is a K-type main-sequence star about 620 light-years away. The stars age is poorly constrained, but is likely older than the Sun`s at approximately 8.7+5.5
−8.6 billion years (ie. somewhere between 100 million years and the age of the universe).^[2] WASP-67 is slightly depleted in heavy elements, having 85% of the solar abundance of iron.^[3]

A multiplicity survey in 2016 has found one candidate stellar companion to WASP-67 at a projected separation of 4.422″±0.018″.^[6] Nonetheless, follow-up observations in 2017 failed to find any bound stellar companions.^[7]

Planetary system

In 2012 a transiting hot Jupiter planet b was detected on a tight, circular orbit.^[4] Its equilibrium temperature is 1050 K.^[8]

The planetary atmosphere contains water, and a cloud layer is located higher than in the similar gas giant HAT-P-38b, indicating a high planetary metallicity.^[8]

The WASP-67 planetary system^[3]
Companion (in order from star)	Mass	Semimajor axis (AU)	Orbital period (days)	Eccentricity	Inclination	Radius
b	0.43±0.09 $M$ _J	0.0510+0.001 −0.0008^[2]	4.61442±0.00001	0^[9]	85.8±0.35°	1.15±0.11 $R$ _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 ^c ^d Mancini, L.; Southworth, J.; Ciceri, S.; Calchi Novati, S.; Dominik, M.; Henning, Th.; Jørgensen, U. G.; Korhonen, H.; Nikolov, N.; Alsubai, K. A.; Bozza, V.; Bramich, D. M.; d'Ago, G.; Figuera Jaimes, R.; Galianni, P.; Gu, S.-H.; Harpsøe, K.; Hinse, T. C.; Hundertmark, M.; Juncher, D.; Kains, N.; Popovas, A.; Rabus, M.; Rahvar, S.; Skottfelt, J.; Snodgrass, C.; Street, R.; Surdej, J.; Tsapras, Y.; et al. (2014), "Physical properties of the WASP-67 planetary system from multi-colour photometry", Astronomy & Astrophysics, 568: A127, arXiv:1406.7448, Bibcode:2014A&A...568A.127M, doi:10.1051/0004-6361/201424106, S2CID 53646473
^ ^a ^b ^c 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
^ ^a ^b 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
^ "WASP-67". SIMBAD. Centre de données astronomiques de Strasbourg.
^ Evans, D. F.; Southworth, J.; Maxted, P. F. L.; Skottfelt, J.; Hundertmark, M.; Jørgensen, U. G.; Dominik, M.; Alsubai, K. A.; Andersen, M. I.; Bozza, V.; Bramich, D. M.; Burgdorf, M. J.; Ciceri, S.; d'Ago, G.; Figuera Jaimes, R.; Gu, S.-H.; Haugbølle, T.; Hinse, T. C.; Juncher, D.; Kains, N.; Kerins, E.; Korhonen, H.; Kuffmeier, M.; Mancini, L.; Peixinho, N.; Popovas, A.; Rabus, M.; Rahvar, S.; Schmidt, R. W.; et al. (2016), "High-resolution Imaging of Transiting Extrasolar Planetary systems (HITEP). I. Lucky imaging observations of 101 systems in the southern hemisphere", Astronomy & Astrophysics, 589: A58, arXiv:1603.03274, Bibcode:2016A&A...589A..58E, doi:10.1051/0004-6361/201527970, S2CID 14215845
^ 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. (2018), "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 Bruno, Giovanni; Lewis, Nikole K.; Stevenson, Kevin B.; Filippazzo, Joseph; Hill, Matthew; Fraine, Jonathan D.; Wakeford, Hannah R.; Deming, Drake; Kilpatrick, Brian; Line, Michael R.; Morley, Caroline V.; Collins, Karen A.; Conti, Dennis M.; Garlitz, Joseph; Rodriguez, Joseph E. (2018), "A COMPARATIVE STUDY OF WASP-67b AND HAT-P-38b FROM WFC3 DATA", The Astronomical Journal, 155 (2): 55, arXiv:1712.03384, Bibcode:2018AJ....155...55B, doi:10.3847/1538-3881/aaa0c7, S2CID 119083486
^ Kammer, Joshua A.; Knutson, Heather A.; Line, Michael R.; Fortney, Jonathan J.; Deming, Drake; Burrows, Adam; Cowan, Nicolas B.; Triaud, Amaury H. M. J.; Agol, Eric; Desert, Jean-Michel; Fulton, Benjamin J.; Howard, Andrew W.; Laughlin, Gregory P.; Lewis, Nikole K.; Morley, Caroline V.; Moses, Julianne I.; Showman, Adam P.; Todorov, Kamen O. (2015), "Spitzersecondary Eclipse Observations of Five Cool Gas Giant Planets and Empirical Trends in Cool Planet Emission Spectra", The Astrophysical Journal, 810 (2): 118, arXiv:1508.00902, Bibcode:2015ApJ...810..118K, doi:10.1088/0004-637X/810/2/118, S2CID 13378720

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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.

[Mancini2014-2] Mancini, L.; Southworth, J.; Ciceri, S.; Calchi Novati, S.; Dominik, M.; Henning, Th.; Jørgensen, U. G.; Korhonen, H.; Nikolov, N.; Alsubai, K. A.; Bozza, V.; Bramich, D. M.; d'Ago, G.; Figuera Jaimes, R.; Galianni, P.; Gu, S.-H.; Harpsøe, K.; Hinse, T. C.; Hundertmark, M.; Juncher, D.; Kains, N.; Popovas, A.; Rabus, M.; Rahvar, S.; Skottfelt, J.; Snodgrass, C.; Street, R.; Surdej, J.; Tsapras, Y.; et al. (2014), "Physical properties of the WASP-67 planetary system from multi-colour photometry", Astronomy & Astrophysics, 568: A127, arXiv:1406.7448, Bibcode:2014A&A...568A.127M, doi:10.1051/0004-6361/201424106, S2CID 53646473

[Stassun2016-3] 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

[Hellier2012-4] 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

[simbad-5] "WASP-67". SIMBAD. Centre de données astronomiques de Strasbourg.

[6] Evans, D. F.; Southworth, J.; Maxted, P. F. L.; Skottfelt, J.; Hundertmark, M.; Jørgensen, U. G.; Dominik, M.; Alsubai, K. A.; Andersen, M. I.; Bozza, V.; Bramich, D. M.; Burgdorf, M. J.; Ciceri, S.; d'Ago, G.; Figuera Jaimes, R.; Gu, S.-H.; Haugbølle, T.; Hinse, T. C.; Juncher, D.; Kains, N.; Kerins, E.; Korhonen, H.; Kuffmeier, M.; Mancini, L.; Peixinho, N.; Popovas, A.; Rabus, M.; Rahvar, S.; Schmidt, R. W.; et al. (2016), "High-resolution Imaging of Transiting Extrasolar Planetary systems (HITEP). I. Lucky imaging observations of 101 systems in the southern hemisphere", Astronomy & Astrophysics, 589: A58, arXiv:1603.03274, Bibcode:2016A&A...589A..58E, doi:10.1051/0004-6361/201527970, S2CID 14215845

[7] 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. (2018), "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

[Bruno2017-8] Bruno, Giovanni; Lewis, Nikole K.; Stevenson, Kevin B.; Filippazzo, Joseph; Hill, Matthew; Fraine, Jonathan D.; Wakeford, Hannah R.; Deming, Drake; Kilpatrick, Brian; Line, Michael R.; Morley, Caroline V.; Collins, Karen A.; Conti, Dennis M.; Garlitz, Joseph; Rodriguez, Joseph E. (2018), "A COMPARATIVE STUDY OF WASP-67b AND HAT-P-38b FROM WFC3 DATA", The Astronomical Journal, 155 (2): 55, arXiv:1712.03384, Bibcode:2018AJ....155...55B, doi:10.3847/1538-3881/aaa0c7, S2CID 119083486

[9] Kammer, Joshua A.; Knutson, Heather A.; Line, Michael R.; Fortney, Jonathan J.; Deming, Drake; Burrows, Adam; Cowan, Nicolas B.; Triaud, Amaury H. M. J.; Agol, Eric; Desert, Jean-Michel; Fulton, Benjamin J.; Howard, Andrew W.; Laughlin, Gregory P.; Lewis, Nikole K.; Morley, Caroline V.; Moses, Julianne I.; Showman, Adam P.; Todorov, Kamen O. (2015), "Spitzersecondary Eclipse Observations of Five Cool Gas Giant Planets and Empirical Trends in Cool Planet Emission Spectra", The Astrophysical Journal, 810 (2): 118, arXiv:1508.00902, Bibcode:2015ApJ...810..118K, doi:10.1088/0004-637X/810/2/118, S2CID 13378720

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Observation data Epoch J2000 Equinox J2000
Constellation	Sagittarius
Right ascension	19^h 42^m 58.5217^s^[1]
Declination	−19° 56′ 58.523″^[1]
Apparent magnitude (V)	12.54
Characteristics
Evolutionary stage	Main sequence
Spectral type	K0V^[2]
Astrometry

Radial velocity (R_v)	0.29^[1] km/s
Proper motion (μ)	RA: 1.759^[1] mas/yr Dec.: −32.902^[1] mas/yr
Parallax (π)	5.2496 ± 0.0427 mas^[1]
Distance	621 ± 5 ly (190 ± 2 pc)

Details^[3]

Mass	0.91±0.28 `M`_☉
Radius	0.88±0.08 `R`_☉
Surface gravity (log g)	4.35±0.15 cgs
Temperature	5200±100 K
Metallicity [Fe/H]	−0.07 dex
Rotational velocity (v sin i)	2.1±0.4^[4] km/s
Age	8.7+5.5 −8.6^[2] Gyr

Other designations
Gaia DR2 6868476691490044672, WASP-67, TYC 6307-1388-1, 2MASS J19425852-1956585^[5]
Database references
SIMBAD	data