HAT-P-30 Knowpia

HAT-P-30
Observation data; Epoch J2000 Equinox J2000
Constellation	Hydra
Right ascension	08h 15m 47.9802s
Declination	+05° 50′ 12.351″
Apparent magnitude (V)	10.35
Characteristics
Evolutionary stage	main sequence
Spectral type	G0
Astrometry
Radial velocity (Rv)	44.14 km/s
Proper motion (μ)	RA: −17.231 mas/yr ; Dec.: +23.875 mas/yr
Parallax (π)	4.8037 ± 0.0099 mas
Distance	679 ± 1 ly ; (208.2 ± 0.4 pc)
Details
Mass	1.175±0.025 M☉
Radius	1.314±0.015 R☉
Luminosity	2.37±0.01 L☉
Surface gravity (log g)	4.270±0.007 cgs
Temperature	6,252±100 K
Metallicity [Fe/H]	−0.079±0.079 dex
Rotational velocity (v sin i)	3.6±0.4 km/s
Age	4.1±0.6 Gyr
Other designations
	BD+06 1909, TOI-490, WASP-51, GSC 00208-00722, 2MASS J08154797+0550121
Database references
SIMBAD	data

HAT-P-30, also known as WASP-51, is the primary of a binary star system about 700 light-years away. It is a G-type main-sequence star. HAT-P-30 has a similar concentration of heavy elements compared to the Sun.

The faint stellar companion was detected in 2013 at a projected separation of 3.842±0.007″.^[7]

Planetary system edit

In 2011 a transiting hot Jupiter planet b was independently detected by two teams.^[8]^[5]

The planetary orbit is strongly misaligned with the equatorial plane of the star, the misalignment angle being equal to 73.5±9.0°.^[8]

Since 2022, an additional planet in the system is suspected based on transit timing variations.^[4]

The HAT-P-30 planetary system^[4]
Companion (in order from star)	Mass	Semimajor axis (AU)	Orbital period (days)	Eccentricity	Inclination	Radius
b	0.723±0.023 $M$ _J	0.04114±0.00030	2.8106006±0.0000004	0	82.56±0.08°	1.426±0.020 $R$ _J

References edit

^ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ 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.
^ Høg, E.; Fabricius, C.; Makarov, V. V.; Urban, S.; Corbin, T.; Wycoff, G.; Bastian, U.; Schwekendiek, P.; Wicenec, A. (March 2000), "The Tycho-2 catalogue of the 2.5 million brightest stars", Astronomy and Astrophysics, 355: L27–L30, Bibcode:2000A&A...355L..27H, ISSN 0004-6361
^ Ginski, C.; Mugrauer, M.; Seeliger, M.; Löhne, T. (November 2013), "The multiplicity status of three exoplanet host stars", Astronomy & Astrophysics, 559: 6, Bibcode:2013A&A...559A..71G, doi:10.1051/0004-6361/201322274
^ ^a ^b ^c ^d ^e ^f ^g Bai, Lu; Gu, Shenghong; Wang, Xiaobin; Sun, Leilei; Kwok, Chi-Tai; Hui, Ho-Keung (2022), "WASP-35 and HAT-P-30/WASP-51: Reanalysis using TESS and Ground-based Transit Photometry", The Astronomical Journal, 163 (5): 208, arXiv:2203.02866, Bibcode:2022AJ....163..208B, doi:10.3847/1538-3881/ac5b6a, S2CID 247292453
^ ^a ^b Enoch, B.; Anderson, D. R.; Barros, S. C. C.; Brown, D. J. A.; Cameron, A. Collier; Faedi, F.; Gillon, M.; Hébrard, G.; Lister, T. A.; Queloz, D.; Santerne, A.; Smalley, B.; Street, R. A.; Triaud, A. H. M. J.; West, R. G.; Bouchy, F.; Bento, J.; Butters, O.; Fossati, L.; Haswell, C. A.; Hellier, C.; Holmes, S.; Jehen, E.; Lendl, M.; Maxted, P. F. L.; McCormac, J.; Miller, G. R. M.; Moulds, V.; Moutou, C.; et al. (2011), "WASP-35b, WASP-48b, and HAT-P-30b/WASP-51b: Two New Planets and an Independent Discovery of a Hat Planet", The Astronomical Journal, 142 (3): 86, arXiv:1104.2827, Bibcode:2011AJ....142...86E, doi:10.1088/0004-6256/142/3/86, S2CID 63996398
^ "BD+06 1909", SIMBAD, Centre de données astronomiques de Strasbourg
^ Wöllert, Maria; Brandner, Wolfgang (2015), "A Lucky Imaging search for stellar sources near 74 transit hosts", Astronomy & Astrophysics, 579: A129, arXiv:1506.05456, Bibcode:2015A&A...579A.129W, doi:10.1051/0004-6361/201526525, S2CID 118903879
^ ^a ^b Johnson, John Asher; Winn, J. N.; Bakos, G. Á.; Hartman, J. D.; Morton, T. D.; Torres, G.; Kovács, Géza; Latham, D. W.; Noyes, R. W.; Sato, B.; Esquerdo, G. A.; Fischer, D. A.; Marcy, G. W.; Howard, A. W.; Buchhave, L. A.; Fűrész, G.; Quinn, S. N.; Béky, B.; Sasselov, D. D.; Stefanik, R. P.; Lázár, J.; Papp, I.; Sári, P. (2011), "HAT-P-30b: A transiting hot Jupiter on a highly oblique orbit", The Astrophysical Journal, 735 (1): 24, arXiv:1103.3825, Bibcode:2011ApJ...735...24J, doi:10.1088/0004-637X/735/1/24, S2CID 53689766

[dr3-1] ^ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ 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.

[tycho2-2] Høg, E.; Fabricius, C.; Makarov, V. V.; Urban, S.; Corbin, T.; Wycoff, G.; Bastian, U.; Schwekendiek, P.; Wicenec, A. (March 2000), "The Tycho-2 catalogue of the 2.5 million brightest stars", Astronomy and Astrophysics, 355: L27–L30, Bibcode:2000A&A...355L..27H, ISSN 0004-6361

[ginski2013-3] Ginski, C.; Mugrauer, M.; Seeliger, M.; Löhne, T. (November 2013), "The multiplicity status of three exoplanet host stars", Astronomy & Astrophysics, 559: 6, Bibcode:2013A&A...559A..71G, doi:10.1051/0004-6361/201322274

[bai2022-4] ^ ^a ^b ^c ^d ^e ^f ^g Bai, Lu; Gu, Shenghong; Wang, Xiaobin; Sun, Leilei; Kwok, Chi-Tai; Hui, Ho-Keung (2022), "WASP-35 and HAT-P-30/WASP-51: Reanalysis using TESS and Ground-based Transit Photometry", The Astronomical Journal, 163 (5): 208, arXiv:2203.02866, Bibcode:2022AJ....163..208B, doi:10.3847/1538-3881/ac5b6a, S2CID 247292453

[Enoch2011-5] Enoch, B.; Anderson, D. R.; Barros, S. C. C.; Brown, D. J. A.; Cameron, A. Collier; Faedi, F.; Gillon, M.; Hébrard, G.; Lister, T. A.; Queloz, D.; Santerne, A.; Smalley, B.; Street, R. A.; Triaud, A. H. M. J.; West, R. G.; Bouchy, F.; Bento, J.; Butters, O.; Fossati, L.; Haswell, C. A.; Hellier, C.; Holmes, S.; Jehen, E.; Lendl, M.; Maxted, P. F. L.; McCormac, J.; Miller, G. R. M.; Moulds, V.; Moutou, C.; et al. (2011), "WASP-35b, WASP-48b, and HAT-P-30b/WASP-51b: Two New Planets and an Independent Discovery of a Hat Planet", The Astronomical Journal, 142 (3): 86, arXiv:1104.2827, Bibcode:2011AJ....142...86E, doi:10.1088/0004-6256/142/3/86, S2CID 63996398

[simbad-6] "BD+06 1909", SIMBAD, Centre de données astronomiques de Strasbourg

[Wollert2015-7] Wöllert, Maria; Brandner, Wolfgang (2015), "A Lucky Imaging search for stellar sources near 74 transit hosts", Astronomy & Astrophysics, 579: A129, arXiv:1506.05456, Bibcode:2015A&A...579A.129W, doi:10.1051/0004-6361/201526525, S2CID 118903879

[Johnson2011-8] Johnson, John Asher; Winn, J. N.; Bakos, G. Á.; Hartman, J. D.; Morton, T. D.; Torres, G.; Kovács, Géza; Latham, D. W.; Noyes, R. W.; Sato, B.; Esquerdo, G. A.; Fischer, D. A.; Marcy, G. W.; Howard, A. W.; Buchhave, L. A.; Fűrész, G.; Quinn, S. N.; Béky, B.; Sasselov, D. D.; Stefanik, R. P.; Lázár, J.; Papp, I.; Sári, P. (2011), "HAT-P-30b: A transiting hot Jupiter on a highly oblique orbit", The Astrophysical Journal, 735 (1): 24, arXiv:1103.3825, Bibcode:2011ApJ...735...24J, doi:10.1088/0004-637X/735/1/24, S2CID 53689766

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Observation data Epoch J2000 Equinox J2000
Constellation	Hydra
Right ascension	08^h 15^m 47.9802^s^[1]
Declination	+05° 50′ 12.351″^[1]
Apparent magnitude (V)	10.35^[2]
Characteristics
Evolutionary stage	main sequence^[1]
Spectral type	G0^[3]
Astrometry

Radial velocity (R_v)	44.14^[1] km/s
Proper motion (μ)	RA: −17.231^[1] mas/yr Dec.: +23.875^[1] mas/yr
Parallax (π)	4.8037 ± 0.0099 mas^[1]
Distance	679 ± 1 ly (208.2 ± 0.4 pc)

Details

Mass	1.175±0.025^[4] `M`_☉
Radius	1.314±0.015^[4] `R`_☉
Luminosity	2.37±0.01^[1] `L`_☉
Surface gravity (log g)	4.270±0.007^[4] cgs
Temperature	6,252±100^[4] K
Metallicity [Fe/H]	−0.079±0.079^[4] dex
Rotational velocity (v sin i)	3.6±0.4^[5] km/s
Age	4.1±0.6^[1] Gyr

Other designations
BD+06 1909, TOI-490, WASP-51, GSC 00208-00722, 2MASS J08154797+0550121^[6]
Database references
SIMBAD	data

Summary

Planetary system edit

References edit