KELT-24

KELT-24, also known as MASCARA-3, is a star in the constellation of Ursa Major.[1][2][3]

KELT-24
Observation data
Epoch J2000.0      Equinox J2000.0
Constellation Ursa Major
Right ascension 10h 47m 38.17s
Declination +71° 39′ 20.62″
Characteristics
Evolutionary stage main sequence star
Spectral type F7V
Variable type planetary transit
Astrometry
Proper motion (μ) RA: -56.1837 ± 0.0532497 mas/yr
Dec.: -34.8076 ± 0.0642398 mas/yr
Parallax (π)10.332 ± 0.0332707 mas
Details
Mass1.30 M☉
Radius1.52 R☉
Luminosity0.565 L☉
Temperature6415 K
Metallicity [Fe/H]-0.090 Fe dex
Age2.8 Gyr
Other designations

Planetary system

In 2017, the discovery of the Hot Jupiter KELT-24b was announced by the Multi-site All-Sky CAmeRA and the Kilodegree Extremely Little Telescope. TESS data confirmed that no additional companions are orbiting this star.[4] [5]

The KELT-24 planetary system
Companion
(in order from star)		 Mass Semimajor axis
(AU)		 Orbital period
(days)		 Eccentricity Inclination Radius
b 5.18 MJ 0.06969 5.6 0.08 83.11° 1.272 RJ

References
  1. "KELT-24 | NASA Exoplanet Archive". exoplanetarchive.ipac.caltech.edu. Retrieved 10 September 2023.
  2. Rodriguez, Joseph E.; Eastman, Jason D.; Zhou, George; Quinn, Samuel N.; Beatty, Thomas G.; Penev, Kaloyan; Johnson, Marshall C.; Cargile, Phillip A.; Latham, David W.; Bieryla, Allyson; Collins, Karen A.; Dressing, Courtney D.; Ciardi, David R.; Relles, Howard M.; Murawski, Gabriel; Nishiumi, Taku; Yonehara, Atsunori; Ishimaru, Ryo; Yoshida, Fumi; Gregorio, Joao; Lund, Michael B.; Stevens, Daniel J.; Stassun, Keivan G.; Gaudi, B. Scott; Colón, Knicole D.; Pepper, Joshua; Narita, Norio; Awiphan, Supachai; Chuanraksasat, Pongpichit; Benni, Paul; Zambelli, Roberto; Garrison, Lehman H.; Wilson, Maurice L.; Cornachione, Matthew A.; Wang, Sharon X.; Labadie-Bartz, Jonathan; Rodríguez, Romy; Siverd, Robert J.; Yao, Xinyu; Bayliss, Daniel; Berlind, Perry; Calkins, Michael L.; Christiansen, Jessie L.; Cohen, David H.; Conti, Dennis M.; Curtis, Ivan A.; Depoy, D. L.; Esquerdo, Gilbert A.; Evans, Phil; Feliz, Dax; Fulton, Benjamin J.; Holoien, Thomas W.-S.; James, David J.; Jayasinghe, Tharindu; Jang-Condell, Hannah; Jensen, Eric L. N.; Johnson, John A.; Joner, Michael D.; Khakpash, Somayeh; Kielkopf, John F.; Kuhn, Rudolf B.; Manner, Mark; Marshall, Jennifer L.; McLeod, Kim K.; McCrady, Nate; Oberst, Thomas E.; Oelkers, Ryan J.; Penny, Matthew T.; Reed, Phillip A.; Sliski, David H.; Shappee, B. J.; Stephens, Denise C.; Stockdale, Chris; Tan, Thiam-Guan; Trueblood, Mark; Trueblood, Pat; Villanueva, Steven; Wittenmyer, Robert A.; Wright, Jason T. (23 October 2019). "KELT-24b: A 5M J Planet on a 5.6 day Well-aligned Orbit around the Young V = 8.3 F-star HD 93148". The Astronomical Journal. 158 (5): 197. arXiv:1906.03276. Bibcode:2019AJ....158..197R. doi:10.3847/1538-3881/ab4136. ISSN 1538-3881.
  3. Pillitteri, I.; Colombo, S.; Micela, G.; Wolk, S. J. (1 May 2023). "The X-ray activity of F stars with hot Jupiters: KELT-24 versus WASP-18". Astronomy & Astrophysics. 673: A61. arXiv:2304.00854. Bibcode:2023A&A...673A..61P. doi:10.1051/0004-6361/202245467. ISSN 0004-6361. S2CID 257913773. Retrieved 10 September 2023.
  4. Maciejewski, G. (2020), "Search for Planets in Hot Jupiter Systems with Multi-Sector TESS Photometry. I. No Companions in Planetary Systems KELT-18, KELT-23, KELT-24, Qatar-8, WASP-62, WASP-100, WASP-119, and WASP-126", Acta Astronomica, 70 (3): 181, arXiv:2010.11977, Bibcode:2020AcA....70..181M, doi:10.32023/0001-5237/70.3.2, S2CID 225061977
  5. "Exoplanet-catalog". Exoplanet Exploration: Planets Beyond our Solar System. Retrieved 10 September 2023.
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