Kepler-24

Kepler-24
Observation data; Epoch J2000 Equinox J2000
Constellation	Lyra
Right ascension	19h 21m 39.1857s
Declination	+38° 20′ 37.450″
Apparent magnitude (V)	15.5
Characteristics
Spectral type	G5
Astrometry
Proper motion (μ)	RA: −2.153(22) mas/yr ; Dec.: −1.822(21) mas/yr
Parallax (π)	0.8312 ± 0.0186 mas
Distance	3,920 ± 90 ly ; (1,200 ± 30 pc)
Details
Mass	1.11 M☉
Radius	1.07 ± 0.16 R☉
Luminosity	0.79 ± 0.04 L☉
Temperature	5800 ± 200 K
Metallicity	–0.24 ± 0.40 dex
Rotation	10.080±0.154 days
Other designations
	KOI-1102, KIC 3231341, 2MASS J19213918+3820375, Gaia DR2 2052823535171095296
Database references
SIMBAD	data
KIC	data

Kepler-24 is a star in the northern constellation of Lyra. It is located at the celestial coordinates: Right Ascension 19^h 21^m 39.1857^s, Declination +38° 20′ 37.450″.^[2] With an apparent visual magnitude of 15.5,^[3] this star is too faint to be seen with the naked eye.

Planetary system

Two planetary candidates b and c were discovered in 2011, and were confirmed in 2012 together with d and e.^[6]

The Kepler-24 planetary system^[4]
Companion (in order from star)	Mass	Semimajor axis (AU)	Orbital period (days)	Eccentricity	Inclination	Radius
d	—	0.051	4.244384	—	—	1.67 $R$ _🜨
b	< 1.6 $M$ _J	0.106	8.1453	—	—	2.4 $R$ _🜨
c	< 1.6 $M$ _J	0.068	12.3335	—	—	2.8 $R$ _🜨
e	—	0.138	18.998355	—	—	2.78 $R$ _🜨

References

^ "Lyra – constellation boundary", The Constellations, International Astronomical Union, retrieved 2011-12-15
^ ^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 ^c ^d ^e ^f ^g Kepler-24b, NASA Ames Research Center, archived from the original on 2012-05-03, retrieved 2011-12-06
^ ^a ^b Schneider, Jean, "Star: Kepler-24", Extrasolar Planets Encyclopaedia, archived from the original on 2012-05-05, retrieved 2013-12-18
^ McQuillan, A.; Mazeh, T.; Aigrain, S. (2013). "Stellar Rotation Periods of The Kepler objects of Interest: A Dearth of Close-In Planets Around Fast Rotators". The Astrophysical Journal Letters. 775 (1). L11. arXiv:1308.1845. Bibcode:2013ApJ...775L..11M. doi:10.1088/2041-8205/775/1/L11.
^ Ford, Eric B.; Fabrycky, Daniel C.; Steffen, Jason H.; Carter, Joshua A.; Fressin, Francois; Holman, Matthew J.; Lissauer, Jack J.; Moorhead, Althea V.; Morehead, Robert C.; Ragozzine, Darin; Rowe, Jason F.; Welsh, William F.; Allen, Christopher; Batalha, Natalie M.; Borucki, William J.; Bryson, Stephen T.; Buchhave, Lars A.; Burke, Christopher J.; Caldwell, Douglas A.; Charbonneau, David; Clarke, Bruce D.; Cochran, William D.; Désert, Jean-Michel; Endl, Michael; Everett, Mark E.; Fischer, Debra A.; Gautier III, Thomas N.; Gilliland, Ron L.; Jenkins, Jon M.; et al. (2012), "Transit Timing Observations Fromkepler. Ii. Confirmation of Two Multiplanet Systems Via a Non-Parametric Correlation Analysis", The Astrophysical Journal, 750 (2): 113, arXiv:1201.5409, Bibcode:2012ApJ...750..113F, doi:10.1088/0004-637X/750/2/113, S2CID 4528963

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[IAU_const-1] "Lyra – constellation boundary", The Constellations, International Astronomical Union, retrieved 2011-12-15

[Gaia_DR3-2] 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.

[nasa_ames-3] ^ ^a ^b ^c ^d ^e ^f ^g Kepler-24b, NASA Ames Research Center, archived from the original on 2012-05-03, retrieved 2011-12-06

[epe-4] Schneider, Jean, "Star: Kepler-24", Extrasolar Planets Encyclopaedia, archived from the original on 2012-05-05, retrieved 2013-12-18

[McQuillan2013-5] McQuillan, A.; Mazeh, T.; Aigrain, S. (2013). "Stellar Rotation Periods of The Kepler objects of Interest: A Dearth of Close-In Planets Around Fast Rotators". The Astrophysical Journal Letters. 775 (1). L11. arXiv:1308.1845. Bibcode:2013ApJ...775L..11M. doi:10.1088/2041-8205/775/1/L11.

[Ford2012-6] Ford, Eric B.; Fabrycky, Daniel C.; Steffen, Jason H.; Carter, Joshua A.; Fressin, Francois; Holman, Matthew J.; Lissauer, Jack J.; Moorhead, Althea V.; Morehead, Robert C.; Ragozzine, Darin; Rowe, Jason F.; Welsh, William F.; Allen, Christopher; Batalha, Natalie M.; Borucki, William J.; Bryson, Stephen T.; Buchhave, Lars A.; Burke, Christopher J.; Caldwell, Douglas A.; Charbonneau, David; Clarke, Bruce D.; Cochran, William D.; Désert, Jean-Michel; Endl, Michael; Everett, Mark E.; Fischer, Debra A.; Gautier III, Thomas N.; Gilliland, Ron L.; Jenkins, Jon M.; et al. (2012), "Transit Timing Observations Fromkepler. Ii. Confirmation of Two Multiplanet Systems Via a Non-Parametric Correlation Analysis", The Astrophysical Journal, 750 (2): 113, arXiv:1201.5409, Bibcode:2012ApJ...750..113F, doi:10.1088/0004-637X/750/2/113, S2CID 4528963

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Observation data Epoch J2000 Equinox J2000
Constellation	Lyra^[1]
Right ascension	19^h 21^m 39.1857^s^[2]
Declination	+38° 20′ 37.450″^[2]
Apparent magnitude (V)	15.5^[3]
Characteristics
Spectral type	G5^[4]
Astrometry

Proper motion (μ)	RA: −2.153(22) mas/yr^[2] Dec.: −1.822(21) mas/yr^[2]
Parallax (π)	0.8312 ± 0.0186 mas^[2]
Distance	3,920 ± 90 ly (1,200 ± 30 pc)

Details

Mass	1.11^[3] `M`_☉
Radius	1.07 ± 0.16^[3] `R`_☉
Luminosity	0.79 ± 0.04^[3] `L`_☉
Temperature	5800 ± 200^[3] K
Metallicity	–0.24 ± 0.40^[3] dex
Rotation	10.080±0.154 days^[5]

Other designations
KOI-1102, KIC 3231341, 2MASS J19213918+3820375, Gaia DR2 2052823535171095296
Database references
SIMBAD	data
KIC	data