kepler-31d Latitude and Longitude:

Sky map 19h 36m 05.523s, +45° 51′ 11.09″
From Wikipedia, the free encyclopedia
(Redirected from Kepler-31d)
Kepler-31
Observation data
Epoch J2000       Equinox J2000
Constellation [corvus] [1]
Right ascension 19h 36m 05.5270s [2]
Declination +45° 51′ 11.108″ [2]
Apparent magnitude (V) 14.0 [3]
Characteristics
Spectral type G5 [4]
Astrometry
Proper motion (μ) RA: −1.007(25)  mas/ yr [2]
Dec.: −7.439(23)  mas/ yr [2]
Parallax (π)0.6013 ± 0.0200  mas [2]
Distance5,400 ± 200  ly
(1,660 ± 60  pc)
Details
Mass1.21 ± 0.17 [3]  M
Radius1.22 ± 0.24 [3]  R
Luminosity0.79 ± 0.04 [3]  L
Temperature6340 ± 200 [3]  K
Metallicity [Fe/H]–0.076 ± 0.400 [3]  dex
Other designations
KOI-935, KIC 9347899, 2MASS J19360552+4551110, Gaia DR2 2128013019361703936
Database references
SIMBAD data
KIC data

Kepler-31 is a star in the northern constellation of Cygnus, the swan. It is orbited by three known exoplanets. It is located at the celestial coordinates: Right Ascension 19h 36m 05.5270s, Declination +45° 51′ 11.108″. [2] With an apparent visual magnitude of 14.0, [3] this star is too faint to be seen with the naked eye.

Planetary system

The three gas giant planets orbiting Kepler-31 were discovered in early 2011, albeit with large false alarm probability, and were confirmed in 2012. [5] [6] The planets form a resonant chain, with orbital periods ratio 1:2:4, although 20% probability exists that these period ratios may be coincidental. [7]

The Kepler-31 planetary system [4] [8]
Companion
(in order from star)
Mass Semimajor axis
( AU)
Orbital period
( days)
Eccentricity Inclination Radius
.04(unconfirmed) 0.0937 9.61730282±3.35e-5 0.173  RJ
b <6.8  MJ 0.16 20.8613 0.38±0.07  RJ
c <4.7  MJ 0.26 42.6318 0.38±0.07  RJ
d 0.39 87.648901±0.000801 0.407±0.099  RJ

References

  1. ^ "Cygnus – constellation boundary", The Constellations, International Astronomical Union, retrieved 2011-12-15
  2. ^ 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.
  3. ^ a b c d e f g Kepler-31b, NASA Ames Research Center, archived from the original on 2012-05-03, retrieved 2011-12-06
  4. ^ a b Schneider, Jean, "Star: Kepler-23", Extrasolar Planets Encyclopaedia, archived from the original on 2012-05-05, retrieved 2011-12-06
  5. ^ 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
  6. ^ Transit Timing Observations from Kepler: IV. Confirmation of 4 Multiple Planet Systems by Simple Physical Models
  7. ^ Pichierri, Gabriele; Batygin, Konstantin; Morbidelli, Alessandro (2019), "The role of dissipative evolution for three-planet, near-resonant extrasolar systems", Astronomy & Astrophysics, 625: A7, arXiv: 1903.09474, Bibcode: 2019A&A...625A...7P, doi: 10.1051/0004-6361/201935259, S2CID  85459759
  8. ^ Planet Kepler-31 d at exoplanets.eu



kepler-31d Latitude and Longitude:

Sky map 19h 36m 05.523s, +45° 51′ 11.09″
From Wikipedia, the free encyclopedia
(Redirected from Kepler-31d)
Kepler-31
Observation data
Epoch J2000       Equinox J2000
Constellation [corvus] [1]
Right ascension 19h 36m 05.5270s [2]
Declination +45° 51′ 11.108″ [2]
Apparent magnitude (V) 14.0 [3]
Characteristics
Spectral type G5 [4]
Astrometry
Proper motion (μ) RA: −1.007(25)  mas/ yr [2]
Dec.: −7.439(23)  mas/ yr [2]
Parallax (π)0.6013 ± 0.0200  mas [2]
Distance5,400 ± 200  ly
(1,660 ± 60  pc)
Details
Mass1.21 ± 0.17 [3]  M
Radius1.22 ± 0.24 [3]  R
Luminosity0.79 ± 0.04 [3]  L
Temperature6340 ± 200 [3]  K
Metallicity [Fe/H]–0.076 ± 0.400 [3]  dex
Other designations
KOI-935, KIC 9347899, 2MASS J19360552+4551110, Gaia DR2 2128013019361703936
Database references
SIMBAD data
KIC data

Kepler-31 is a star in the northern constellation of Cygnus, the swan. It is orbited by three known exoplanets. It is located at the celestial coordinates: Right Ascension 19h 36m 05.5270s, Declination +45° 51′ 11.108″. [2] With an apparent visual magnitude of 14.0, [3] this star is too faint to be seen with the naked eye.

Planetary system

The three gas giant planets orbiting Kepler-31 were discovered in early 2011, albeit with large false alarm probability, and were confirmed in 2012. [5] [6] The planets form a resonant chain, with orbital periods ratio 1:2:4, although 20% probability exists that these period ratios may be coincidental. [7]

The Kepler-31 planetary system [4] [8]
Companion
(in order from star)
Mass Semimajor axis
( AU)
Orbital period
( days)
Eccentricity Inclination Radius
.04(unconfirmed) 0.0937 9.61730282±3.35e-5 0.173  RJ
b <6.8  MJ 0.16 20.8613 0.38±0.07  RJ
c <4.7  MJ 0.26 42.6318 0.38±0.07  RJ
d 0.39 87.648901±0.000801 0.407±0.099  RJ

References

  1. ^ "Cygnus – constellation boundary", The Constellations, International Astronomical Union, retrieved 2011-12-15
  2. ^ 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.
  3. ^ a b c d e f g Kepler-31b, NASA Ames Research Center, archived from the original on 2012-05-03, retrieved 2011-12-06
  4. ^ a b Schneider, Jean, "Star: Kepler-23", Extrasolar Planets Encyclopaedia, archived from the original on 2012-05-05, retrieved 2011-12-06
  5. ^ 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
  6. ^ Transit Timing Observations from Kepler: IV. Confirmation of 4 Multiple Planet Systems by Simple Physical Models
  7. ^ Pichierri, Gabriele; Batygin, Konstantin; Morbidelli, Alessandro (2019), "The role of dissipative evolution for three-planet, near-resonant extrasolar systems", Astronomy & Astrophysics, 625: A7, arXiv: 1903.09474, Bibcode: 2019A&A...625A...7P, doi: 10.1051/0004-6361/201935259, S2CID  85459759
  8. ^ Planet Kepler-31 d at exoplanets.eu



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