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Kepler-160 is a main-sequence star approximately the width of our Galactic arm away in the constellation Lyra, first studied in detail by the Kepler Mission, a NASA-led operation tasked with discovering terrestrial planets. The star, which is very similar to the Sun in mass and radius,[3][2] has three confirmed planets and one unconfirmed planet orbiting it.

Kepler-160
Observation data
Epoch J2000      Equinox J2000
Constellation Lyra
Right ascension 19h 11m 05.6526s[1]
Declination +42° 52′ 09.4725″[1]
Apparent magnitude (V) 13.101
Characteristics
Evolutionary stage G2V
J−H color index 0.359
J−K color index 0.408
Variable type ROT, Planetary transit
Astrometry
Proper motion (μ) RA: 3.476±0.032[1] mas/yr
Dec.: -5.212±0.035[1] mas/yr
Parallax (π)1.0385 ± 0.0183 mas
Distance3,140 ± 60 ly
(960 ± 20 pc)
Details
Radius1.118+0.015
−0.045[2] R☉
Luminosity1.01±0.05[2] L☉
Surface gravity (log g)4.515[3] cgs
Temperature5471+115
−37[2] K
Metallicity [Fe/H]-0.361 dex
Other designations
Gaia DR2 2102587087846067712, KOI-456, KIC 7269974, 2MASS J19110565+4252094[1]
Database references
SIMBADdata
KICdata

Characteristics


The star Kepler-160 is rather old, having no detectable circumstellar disk.[4] The star's metallicity is unknown, with conflicting values of either 40% or 160% of solar metallicity reported.[5][6]

Of this system (and all others) the Breakthrough Listen search for extraterrestrial intelligence found no potential technosignatures.[7]


Planetary system


The two planetary candidates in the Kepler-160 system were discovered in 2010, published in early 2011[8] and confirmed in 2014.[9] The planets Kepler-160b and Kepler-160c are not in orbital resonance despite their orbital periods ratio being close to 1:3.[10]

An additional rocky transiting planet candidate KOI-456.04, located in the habitable zone, was detected in 2020,[2] and more non-transiting planets are suspected due to residuals in the solution for the transit timing variations. From what researchers can tell, KOI-456.04 looks to be less than twice the size of Earth and is apparently orbiting Kepler-160 at about the same distance from Earth to the sun (one complete orbit is 378 days). Perhaps most important, it receives about 93% as much light as Earth gets from the sun.[11] Nontransiting planet candidate Kepler-160d has a mass between about 1 and 100 Earth masses and an orbital period between about 7 and 50 d.[2]

The Kepler-160 planetary system[2]
Companion
(in order from star)		 Mass Semimajor axis
(AU)		 Orbital period
(days)		 Eccentricity Inclination Radius
b [es] — 0.05511+0.0019
−0.0037		 4.309397+0.000013
−0.000012		 0 — 1.715+0.061
−0.047 R🜨
c [es] — 0.1192+0.004
−0.008		 13.699429±0.000018 0 — 3.76+0.23
−0.09 R🜨
d 1—100 M🜨 — 7—50 — — —
e (unconfirmed) — 1.089+0.037
−0.073		 378.417+0.028
−0.025		 0 — 1.91+0.17
−0.14 R⊕

See also



References


  1. Kepler-160 -- Rotationally variable Star
  2. Heller, René; Hippke, Michael; Freudenthal, Jantje; Rodenbeck, Kai; Batalha, Natalie M.; Bryson, Steve (2020). "Transit least-squares survey". Astronomy & Astrophysics. 638: A10. arXiv:2006.02123. doi:10.1051/0004-6361/201936929. S2CID 219260293.
  3. Borucki, William J.; Koch, David G.; Basri, Gibor; Batalha, Natalie; Boss, Alan; Brown, Timothy M.; Caldwell, Douglas; Christensen-Dalsgaard, Jørgen; Cochran, William D.; Devore, Edna; Dunham, Edward W.; Dupree, Andrea K.; Gautier Iii, Thomas N.; Geary, John C.; Gilliland, Ronald; Gould, Alan; Howell, Steve B.; Jenkins, Jon M.; Kjeldsen, Hans; Latham, David W.; Lissauer, Jack J.; Marcy, Geoffrey W.; Monet, David G.; Sasselov, Dimitar; Tarter, Jill; Charbonneau, David; Doyle, Laurance; Ford, Eric B.; Fortney, Jonathan; et al. (2011). "Characteristics Ofkeplerplanetary Candidates Based on the First Data Set". The Astrophysical Journal. 728 (2): 117. arXiv:1006.2799. Bibcode:2011ApJ...728..117B. doi:10.1088/0004-637X/728/2/117. S2CID 93116.
  4. Lawler, S. M.; Gladman, B. (2012). "Debris Disks Inkeplerexoplanet Systems". The Astrophysical Journal. 752 (1): 53. arXiv:1112.0368. Bibcode:2012ApJ...752...53L. doi:10.1088/0004-637X/752/1/53. S2CID 119215667.
  5. Rowe, Jason F.; Bryson, Stephen T.; Marcy, Geoffrey W.; Lissauer, Jack J.; Jontof-Hutter, Daniel; Mullally, Fergal; Gilliland, Ronald L.; Issacson, Howard; Ford, Eric; Howell, Steve B.; Borucki, William J.; Haas, Michael; Huber, Daniel; Steffen, Jason H.; Thompson, Susan E.; Quintana, Elisa; Barclay, Thomas; Still, Martin; Fortney, Jonathan; Gautier, T. N.; Hunter, Roger; Caldwell, Douglas A.; Ciardi, David R.; Devore, Edna; Cochran, William; Jenkins, Jon; Agol, Eric; Carter, Joshua A.; Geary, John (2014). "Validation Ofkepler's Multiple Planet Candidates. III. Light Curve Analysis and Announcement of Hundreds of New Multi-Planet Systems". The Astrophysical Journal. 784 (1): 45. arXiv:1402.6534. Bibcode:2014ApJ...784...45R. doi:10.1088/0004-637X/784/1/45. S2CID 119118620.
  6. Petigura, Erik A.; Howard, Andrew W.; Marcy, Geoffrey W.; Johnson, John Asher; Isaacson, Howard; Cargile, Phillip A.; Hebb, Leslie; Fulton, Benjamin J.; Weiss, Lauren M.; Morton, Timothy D.; Winn, Joshua N.; Rogers, Leslie A.; Sinukoff, Evan; Hirsch, Lea A.; Crossfield, Ian J. M. (2017). "The California-Kepler Survey. I. High-resolution Spectroscopy of 1305 Stars HostingKepler Transiting Planets". The Astronomical Journal. 154 (3): 107. arXiv:1703.10400. Bibcode:2017AJ....154..107P. doi:10.3847/1538-3881/aa80de. S2CID 55183141.
  7. Perez, Karen; Brzycki, Bryan; Gajjar, Vishal; Isaacson, Howard; Siemion, Andrew; Croft, Steve; DeBoer, David; Lebofsky, Matt; MacMahon, David H. E.; Price, Danny C.; Sheikh, Sofia; Drew, Jamie; Pete Worden, S. (2020), "Breakthrough Listen Search for Technosignatures Towards the Kepler-160System", Research Notes of the American Astronomical Society, 4 (6): 97, arXiv:2006.13789, Bibcode:2020RNAAS...4...97P, doi:10.3847/2515-5172/ab9f36, S2CID 220042074
  8. Lissauer, Jack J.; Ragozzine, Darin; Fabrycky, Daniel C.; Steffen, Jason H.; Ford, Eric B.; Jenkins, Jon M.; Shporer, Avi; Holman, Matthew J.; Rowe, Jason F.; Quintana, Elisa V.; Batalha, Natalie M.; Borucki, William J.; Bryson, Stephen T.; Caldwell, Douglas A.; Carter, Joshua A.; Ciardi, David; Dunham, Edward W.; Fortney, Jonathan J.; Gautier, Iii, Thomas N.; Howell, Steve B.; Koch, David G.; Latham, David W.; Marcy, Geoffrey W.; Morehead, Robert C.; Sasselov, Dimitar (2011). "Architecture and Dynamics of Kepler 's Candidate Multiple Transiting Planet Systems". The Astrophysical Journal Supplement Series. 197 (1): 8. arXiv:1102.0543. Bibcode:2011ApJS..197....8L. doi:10.1088/0067-0049/197/1/8. S2CID 43095783.
  9. Planet Kepler-160 b on exoplanet.eu
  10. Veras, Dimitri; Ford, Eric B. (2012). "Identifying non-resonant Kepler planetary systems". Monthly Notices of the Royal Astronomical Society: Letters. 420 (1): L23–L27. arXiv:1111.0299. Bibcode:2012MNRAS.420L..23V. doi:10.1111/j.1745-3933.2011.01185.x. S2CID 55625425.
  11. Patel, Neel V. (2020-06-05). "Astronomers have found a planet like Earth orbiting a star like the sun". MIT Technology Review. Retrieved 2020-06-07.{{cite web}}: CS1 maint: url-status (link)


На других языках

[de] Kepler-160

Kepler-160 ist ein Stern im Sternbild Leier im Beobachtungsbereich der Kepler-Mission, einem von der NASA geführten Projekt zur Entdeckung erdähnlicher Planeten. Der Stern, der unserer Sonne in Masse und Radius sehr ähnlich ist, besitzt zwei bestätigte, einen unbestätigten und mindestens einen vermuteten Planeten in seiner Umlaufbahn.
- [en] Kepler-160

[ru] Kepler-160

Kepler-160 (KOI-456) — звезда главной последовательности в созвездии Лиры. Находится на расстоянии 3141+56−54 световых лет от Солнца.


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