Kepler-1513

Kepler-1513
Observation data; Epoch J2000 Equinox ICRS
Constellation	Lyra
Right ascension	19h 19m 09.99418s
Declination	+39° 17′ 06.9287″
Apparent magnitude (V)	12.888±0.100 (Kepler band)
Characteristics
Evolutionary stage	Main sequence
Spectral type	K0V or late G
Apparent magnitude (G)	12.946±0.003
Apparent magnitude (J)	11.758±0.027
Apparent magnitude (H)	11.397±0.030
Apparent magnitude (K)	11.309±0.020
Astrometry
Radial velocity (Rv)	−0.42±1.41 km/s
Proper motion (μ)	RA: 20.439 mas/yr ; Dec.: 1.745 mas/yr
Parallax (π)	2.8446±0.0134 mas
Distance	1,147 ± 5 ly ; (352 ± 2 pc)
Details
Mass	0.943±0.037 M☉
Radius	0.950+0.077; −0.055 R☉
Luminosity (bolometric)	0.743+0.148; −0.100 L☉
Surface gravity (log g)	4.46±0.10 cgs
Temperature	5491±100 K
Metallicity	0.17±0.06 [M/H]
Age	7.0+4.0; −4.2 Gyr
Other designations
	Kepler-1513, KOI-3678, KIC 4150804, TIC 394177315, 2MASS J19190999+3917070
Database references
SIMBAD	data
Exoplanet Archive	data

Kepler-1513 is a main-sequence star about 1,150 light-years (350 parsecs) away in the constellation Lyra. It has a late-G or early-K spectral type, and it hosts at least one, and likely two, exoplanets.

Planetary system

Kepler-1513b (KOI-3678.01) was confirmed in 2016 as part of a study statistically validating hundreds of Kepler planets. In November 2022, an exomoon candidate was reported around Kepler-1513b based on transit-timing variations (TTVs). Unlike previous giant exomoon candidates in the Kepler-1625 and Kepler-1708 systems, this exomoon would have been terrestrial-mass, ranging from 0.76 Lunar masses to 0.34 Earth masses depending on the planet's mass and the moon's orbital period.

In October 2023, a follow-up study by the same team of astronomers using additional observations found that the observed TTVs cannot be explained by an exomoon, but can be explained by a second, outer planet, Kepler-1513c, with a mass comparable to Saturn.

The Kepler-1513 planetary system
Companion (in order from star)	Mass	Semimajor axis (AU)	Orbital period (days)	Eccentricity	Inclination (°)	Radius
b	0.152+0.104 −0.061 `M`_J	0.53+0.04 −0.03	160.8842+0.0011 −0.0028	0.306+0.093 −0.097	—	8.05+0.58 −0.40 `R`_🜨
c	0.266+0.098 −0.063 `M`_J	1.71	841.4+8.1 −5.3	0.125+0.018 −0.019	—	—

References

↑ Roman, Nancy G. (1987). "Identification of a constellation from a position". Publications of the Astronomical Society of the Pacific. 99 (617): 695. Bibcode:1987PASP...99..695R. doi:10.1086/132034. Constellation record for this object at VizieR.
1 2 3 4 5 6 7 8 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.
1 2 Frasca, A.; Molenda-Żakowicz, J.; et al. (October 2016). "Activity indicators and stellar parameters of the Kepler targets. An application of the ROTFIT pipeline to LAMOST-Kepler stellar spectra". Astronomy & Astrophysics. 594: A39. arXiv:1606.09149. Bibcode:2016A&A...594A..39F. doi:10.1051/0004-6361/201628337. S2CID 119283349.
1 2 3 Kipping, David; Yahalomi, Daniel A. (January 2023). "A search for transit timing variations within the exomoon corridor using Kepler data". Monthly Notices of the Royal Astronomical Society. 518 (3): 3482–3493. arXiv:2211.06210. Bibcode:2023MNRAS.518.3482K. doi:10.1093/mnras/stac3360.
1 2 3 4 "Kepler-1513". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 8 October 2023.
1 2 3 Yahalomi, Daniel A.; Kipping, David; et al. (2024). "Not So Fast Kepler-1513: A Perturbing Planetary Interloper in the Exomoon Corridor". Monthly Notices of the Royal Astronomical Society. 527: 620–639. arXiv:2310.03802. doi:10.1093/mnras/stad3070.
↑ Morton, Timothy D.; Bryson, Stephen T.; et al. (May 2016). "False Positive Probabilities for all Kepler Objects of Interest: 1284 Newly Validated Planets and 428 Likely False Positives". The Astrophysical Journal. 822 (2): 86. arXiv:1605.02825. Bibcode:2016ApJ...822...86M. doi:10.3847/0004-637X/822/2/86.

[Roman1987-1] Roman, Nancy G. (1987). "Identification of a constellation from a position". Publications of the Astronomical Society of the Pacific. 99 (617): 695. Bibcode:1987PASP...99..695R. doi:10.1086/132034. Constellation record for this object at VizieR.

[GaiaDR3-2] 1 2 3 4 5 6 7 8 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.

[Frasca2016-3] 1 2 Frasca, A.; Molenda-Żakowicz, J.; et al. (October 2016). "Activity indicators and stellar parameters of the Kepler targets. An application of the ROTFIT pipeline to LAMOST-Kepler stellar spectra". Astronomy & Astrophysics. 594: A39. arXiv:1606.09149. Bibcode:2016A&A...594A..39F. doi:10.1051/0004-6361/201628337. S2CID 119283349.

[Kipping2023-4] 1 2 3 Kipping, David; Yahalomi, Daniel A. (January 2023). "A search for transit timing variations within the exomoon corridor using Kepler data". Monthly Notices of the Royal Astronomical Society. 518 (3): 3482–3493. arXiv:2211.06210. Bibcode:2023MNRAS.518.3482K. doi:10.1093/mnras/stac3360.

[SIMBAD-5] 1 2 3 4 "Kepler-1513". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 8 October 2023.

[Yahalomi2023-6] 1 2 3 Yahalomi, Daniel A.; Kipping, David; et al. (2024). "Not So Fast Kepler-1513: A Perturbing Planetary Interloper in the Exomoon Corridor". Monthly Notices of the Royal Astronomical Society. 527: 620–639. arXiv:2310.03802. doi:10.1093/mnras/stad3070.

[Morton2016-7] Morton, Timothy D.; Bryson, Stephen T.; et al. (May 2016). "False Positive Probabilities for all Kepler Objects of Interest: 1284 Newly Validated Planets and 428 Likely False Positives". The Astrophysical Journal. 822 (2): 86. arXiv:1605.02825. Bibcode:2016ApJ...822...86M. doi:10.3847/0004-637X/822/2/86.

Kepler-1513

Planetary system

See also

References