HAT-P-4

HAT-P-4
Observation data Epoch J2000 Equinox J2000
Constellation	Boötes^[1]
HAT-P-4A
Right ascension	15^h 19^m 57.9204^s^[2]
Declination	+36° 13′ 46.738″^[2]
Apparent magnitude (V)	11.159±0.010^[3]
HAT-P-4B
Right ascension	15^h 20^m 00.0127^s^[4]
Declination	+36° 12′ 18.520″^[4]
Apparent magnitude (V)	11.534±0.01^[3]
Characteristics
HAT-P-4A
Spectral type	G0V^[5]
B−V color index	0.771
Variable type	planetary transit^[6]
HAT-P-4B
Spectral type	G2V^[5]
Astrometry
HAT-P-4A
Proper motion (μ)	RA: −21.513(13) mas/yr^[2] Dec.: −24.255(19) mas/yr^[2]
Parallax (π)	3.1071 ± 0.0154 mas^[2]
Distance	1,050 ± 5 ly (322 ± 2 pc)
HAT-P-4B
Proper motion (μ)	RA: −21.424(13) mas/yr^[4] Dec.: −24.182(20) mas/yr^[4]
Parallax (π)	3.0777 ± 0.0155 mas^[4]
Distance	1,060 ± 5 ly (325 ± 2 pc)
Details
HAT-P-4A
Mass	1.260^+0.043 _−0.042^[7] `M`_☉
Radius	1.573±0.015^[7] `R`_☉
Luminosity	0.41 `L`_☉
Surface gravity (log g)	4.145±0.015^[7] cgs
Temperature	5927⁺⁵⁷ ₋₄₇^[7] K
Metallicity [Fe/H]	0.277±0.007^[8] dex
Rotational velocity (v sin i)	5.6 ± 0.9^[9] km/s
Age	~4.2 Gyr
HAT-P-4B
Surface gravity (log g)	4.38±0.14^[8] cgs
Temperature	6037±37^[8] K
Metallicity [Fe/H]	0.175±0.006^[8] dex
Position (relative to HAT-P-4A)^[5]
Component	HAT-P-4B
Epoch of observation	1999/02/07
Angular distance	91.760±0.099″
Position angle	163.97±0.06°
Observed separation (projected)	28446 AU
Other designations

HAT-P-4A: BD36°2593, Gaia DR3 1291120362349158016, SAO 64638, TYC 2569-1599-1, GSC 02569-01599, 2MASS J15195792+3613467^[10]
HAT-P-4B: Gaia DR3 1291119606434912384, TYC 2569-744-1, 2MASS J15200001+3612185^[11]
Database references
SIMBAD	data
Extrasolar Planets Encyclopaedia	data
Data sources:
Hipparcos Catalogue, CCDM (2002), Bright Star Catalogue (5th rev. ed.)

HAT-P-4 is a wide binary star consisting of a pair of G-type main-sequence stars^[5] in the constellation of Boötes.^[1] It is also designated BD+36°2593.

The star exhibits an infrared excess noise of unknown origin.^[12]

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Transcription

Planetary System

The primary star is home to the transiting extrasolar planet HAT-P-4b.^[6] This planet is a fairly typical hot Jupiter type planet in a 3-day orbit.^[6]

Binary companion

The companion star is located at a distance of 28446 astronomical units and therefore has an orbital period that is extremely long.^[5]

The HAT-P-4A planetary system^[13]^[14]
Companion (in order from star)	Mass	Semimajor axis (AU)	Orbital period (days)	Eccentricity	Inclination	Radius
b	0.651+0.033 −0.037 M_J	0.04449+0.00083 −0.0012	3.0565254±0.0000012	<0.0073	—	1.28^+0.016 _−0.015^[7] R_J

References

^ ^a ^b Roman, Nancy G. (1987). "Identification of a Constellation From a Position". Publications of the Astronomical Society of the Pacific. 99 (617): 695–699. Bibcode:1987PASP...99..695R. doi:10.1086/132034. Vizier query form
^ ^a ^b ^c ^d 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.
^ ^a ^b Henden, A. A.; et al. (2016). "VizieR Online Data Catalog: AAVSO Photometric All Sky Survey (APASS) DR9 (Henden+, 2016)". VizieR On-line Data Catalog: II/336. Originally Published in: 2015AAS...22533616H. 2336. Bibcode:2016yCat.2336....0H. Vizier catalog entry for component A Vizier catalog entry for component B
^ ^a ^b ^c ^d 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.
^ ^a ^b ^c ^d ^e Mugrauer, M.; Ginski, C.; Seeliger, M. (2014). "New wide stellar companions of exoplanet host stars". Monthly Notices of the Royal Astronomical Society. 439 (1): 1063–1070. Bibcode:2014MNRAS.439.1063M. doi:10.1093/mnras/stu044.
^ ^a ^b ^c Kovács, G.; et al. (2007). "HAT-P-4b: A Metal-rich Low-Density Transiting Hot Jupiter". The Astrophysical Journal Letters. 670 (1): L41–L44. arXiv:0710.0602. Bibcode:2007ApJ...670L..41K. doi:10.1086/524058. S2CID 14966730.
^ ^a ^b ^c ^d ^e Wang, Xian-Yu; et al. (1 July 2021). "Transiting Exoplanet Monitoring Project (TEMP). VI. The Homogeneous Refinement of System Parameters for 39 Transiting Hot Jupiters with 127 New Light Curves". The Astrophysical Journal Supplement Series. 255 (1). 15. arXiv:2105.14851. Bibcode:2021ApJS..255...15W. doi:10.3847/1538-4365/ac0835. S2CID 235253975.
^ ^a ^b ^c ^d Saffe, C.; et al. (2017). "Signatures of rocky planet engulfment in HAT-P-4. Implications for chemical tagging studies". Astronomy and Astrophysics Letters. 604. L4. arXiv:1707.02180. Bibcode:2017A&A...604L...4S. doi:10.1051/0004-6361/201731430. S2CID 119204481.
^ Torres, Guillermo; et al. (2012). "Improved Spectroscopic Parameters for Transiting Planet Hosts". The Astrophysical Journal. 757 (2). 161. arXiv:1208.1268. Bibcode:2012ApJ...757..161T. doi:10.1088/0004-637X/757/2/161. S2CID 16580774.
^ "BD+36 2593". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2023-02-24.
^ "TYC 2569-744-1". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2023-02-24.
^ Sada, Pedro V.; Deming, Drake; Jennings, Donald E.; Jackson, Brian k.; Hamilton, Catrina M.; Fraine, Jonathan; Peterson, Steven W.; Haase, Flynn; Bays, Kevin; Lunsford, Allen; o'Gorman, Eamon (2012), "Extrasolar Planet Transits Observed at Kitt Peak National Observatory", Publications of the Astronomical Society of the Pacific, 124 (913): 212–229, arXiv:1202.2799, Bibcode:2012PASP..124..212S, doi:10.1086/665043, S2CID 29665395
^ Bonomo, A. S.; et al. (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 and Astrophysics. 602. A107. arXiv:1704.00373. Bibcode:2017A&A...602A.107B. doi:10.1051/0004-6361/201629882. S2CID 118923163.
^ Sada, Pedro V.; et al. (2012). "Extrasolar Planet Transits Observed at Kitt Peak National Observatory". Publications of the Astronomical Society of the Pacific. 124 (913): 212–229. arXiv:1202.2799. Bibcode:2012PASP..124..212S. doi:10.1086/665043. S2CID 29665395.

External links

Image HAT-P-4
"HAT-P-4". Exoplanets. Archived from the original on 2016-03-03. Retrieved 2009-05-10.

Constellation of Boötes

Stars

Bayer	α (Arcturus) β (Nekkar) γ (Seginus) δ (Princeps) ε (Izar) ζ η (Muphrid) θ (Asellus Primus) ι (Asellus Secundus) κ (Asellus Tertius) λ (Xuange) μ (Alkalurops) ν¹ ν² ξ ο π ρ σ τ υ φ χ ψ ω
Flamsteed	1 2 3 6 (e) 7 9 10 11 12 (d) 13 14 15 18 20 22 (f) 24 (g) 26 31 32 33 34 38 (h, Merga) 39 40 44 (i) 45 (c) 46 (b) 47 (k) 50
Variable	R S T ZZ BL BP BX BY CE CH CI CP CR CX CY (101 Vir) DE EK HN HP
HD	118508 118889 122563 125040 125351 (A) 125658 126128 126141 126200 126271 127304 127726 128093 128198 129132 129357 130084 130603 130917 131040 131473 131496 (Arcalís) 132029 132406 132563 134064 134335 135438 135530 135944 136418 (Nikawiy) 141399
Other	CFBDSIR 1458+10 Gliese 526 HAT-P-4 2MASS J15031961+2525196 LHS 2924 PSR J1544+4937 SDSS J1416+1348 SDSS J1433+1011 TVLM 513-46546 WASP-14 ZTF J153932.16+502738.8

Exoplanets	HD 136418 b (Awasis) HAT-P-4b HD 128311 b c HD 132406 b τ Boötis b WASP-14b

Star clusters	NGC 5466

Galaxies

NGC	5248 5490 5500 5514 5523 5529 5533 5544 5545 5548 5557 5559 5562 5579 5582 5609 5613 5614 5615 5624 5641 5653 5665 5676 5682 5714 5752 5753 5754 5755 5820 5821 5829 5837 5886 5929 5930 5966
Numbered	I II III
Other	Arp 302 3C 295 3C 299 3C 303 CEERS-2112 CEERS-93316 CLASS B1359+154 Cloverleaf quasar DDO 190 EGS-zs8-1 EGSY8p7 LEDA 2108986 MACS 1423-z7p64 MS 1512-cB58 SDSS J1430+2303 Teacup galaxy UGC 9128 UGC 9796 ULAS J1342+0928

Galaxy clusters	Abell 1795 IDCS J1426.5+3508

Astronomical events	GRB 990123 GRB 080319B SCP 06F6 SN 2003fg SN 2005bc SN 2020tlf

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