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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.

See also

• Kepler-90g

References

1. "Finding the constellation which contains given sky coordinates". djm.cc. 2 August 2008.
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.
3. ^ 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.
4. ^ 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.
5. ^ "Kepler-1513". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 8 October 2023.
6. ^ 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.
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.
8. "Orbital Period Calculator | Binary System". www.omnicalculator.com. Retrieved 2023-10-31.

• Lyra
• G-type main-sequence stars
• Planetary systems with one confirmed planet
• Kepler objects of interest
• 2MASS objects