From Wikipedia, the free encyclopedia
Star in the constellation Equuleus
HAT-P-65 is a faint star located in the equatorial
constellation
Equuleus . With an apparent magnitude of 13.16, it requires a telescope to be seen. The star is located 2,460 light-years (750 pc) away from Earth,
[2] but is drifting close with a radial velocity of -48 km/s.
Properties
HAT-P-65 has a similar spectral type to that of the
Sun . However, it is 21% more massive, and 86% larger than the latter. HAT-P-65 is slightly hotter, with an effective temperature of 5,916
K compared to 5,778
K of the Sun. It also has a higher luminosity and
metallicity , with an iron content 26% greater than the Sun.
Planetary system
In 2016, an inflated hot Jupiter was discovered orbiting the star in a tight 2 day orbit. As of 2019, the planet has been suffering
orbital decay due to its proximity.
[8]
References
^ 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
e 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 Zacharias, N.; Finch, C. T.; Girard, T. M.; Henden, A.;
Bartlett, J. L. ; Monet, D. G.; Zacharias, M. I. (1 February 2013).
"The Fourth US Naval Observatory CCD Astrograph Catalog (UCAC4)" . The Astronomical Journal . 145 (2): 44.
arXiv :
1212.6182 .
Bibcode :
2013AJ....145...44Z .
doi :
10.1088/0004-6256/145/2/44 .
ISSN
0004-6256 .
S2CID
119299381 .
^
a
b
c
d Hartman, J. D.; et al. (1 December 2016).
"HAT-P-65b and HAT-P-66b: Two Transiting Inflated Hot Jupiters and Observational Evidence for the Reinflation of Close-in Giant Planets" . The Astronomical Journal . 152 (6) 182.
arXiv :
1609.02767 .
Bibcode :
2016AJ....152..182H .
doi :
10.3847/0004-6256/152/6/182 .
S2CID
118546031 .
^
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 Stassun, Keivan G.; Oelkers, Ryan J.; Paegert, Martin; Torres, Guillermo; Pepper, Joshua; De Lee, Nathan; Collins, Kevin; Latham, David W.; Muirhead, Philip S.; Chittidi, Jay; Rojas-Ayala, Bárbara; Fleming, Scott W.; Rose, Mark E.; Tenenbaum, Peter; Ting, Eric B.; Kane, Stephen R.; Barclay, Thomas; Bean, Jacob L.; Brassuer, C. E.; Charbonneau, David; Ge, Jian; Lissauer, Jack J.; Mann, Andrew W.; McLean, Brian; Mullally, Susan; Narita, Norio; Plavchan, Peter; Ricker, George R.; Sasselov, Dimitar; Seager, S.; Sharma, Sanjib; Shiao, Bernie; Sozzetti, Alessandro; Stello, Dennis; Vanderspek, Roland; Wallace, Geoff; Winn, Joshua N. (1 October 2019).
"The Revised TESS Input Catalog and Candidate Target List" . The Astronomical Journal . 158 (4): 138.
arXiv :
1905.10694 .
Bibcode :
2019AJ....158..138S .
doi :
10.3847/1538-3881/ab3467 .
hdl :
1721.1/124721 .
ISSN
0004-6256 .
S2CID
166227927 .
^
"HAT-P-65" .
SIMBAD .
Centre de données astronomiques de Strasbourg . Retrieved 2023-02-22 .
^ Alvarado-Montes, Jaime A; García-Carmona, Carolina (2019-07-01).
"Orbital decay of short-period gas giants under evolving tides" . Monthly Notices of the Royal Astronomical Society . 486 (3): 3963–3974.
arXiv :
1904.07596 .
doi :
10.1093/mnras/stz1081 .
ISSN
0035-8711 .