Kepler-167

Star in the constellation Cygnus

Kepler-167  Observation data
Epoch J2000 Equinox J2000

Constellation | Cygnus[1]
Right ascension | 19h 30m 38.02619s[2]
Declination | +38° 20′ 43.4372″[2]
Apparent magnitude (V) | 14.284±0.126[3]
Characteristics
Evolutionary stage | Main sequence
Spectral type | K3-K4[4] \+ M4V[5]
Apparent magnitude (V)  | 14.284±0.126[3]
Apparent magnitude (G)  | 13.988±0.003[2]
Apparent magnitude (J)  | 12.446±0.022[6]
Apparent magnitude (H)  | 11.974±0.023[6]
Apparent magnitude (K)  | 11.832±0.022[6]
Astrometry
Radial velocity (Rv)| −26.79±2.21[2] km/s
Proper motion (μ)|  RA: 15.097 mas/yr[2]
Dec.: 36.352 mas/yr[2]
Parallax (π)| 2.9157±0.0131 mas[2]
Distance| 1,119 ± 5 ly
(343 ± 2 pc)
Absolute magnitude (MV)| 6.53±0.12[4]
Details[5]
Mass| 0.777+0.034
−0.031 M☉
Radius| 0.749±0.020 R☉
Luminosity (bolometric)| 0.289+0.017
−0.020 L☉
Surface gravity (log g)| 4.579+0.027
−0.025 cgs
Temperature| 4884+69
−75 K
Metallicity [Fe/H]| 0.020±0.067 dex
Rotational velocity (v sin i)| <2[4] km/s
Age| 7.1+4.4
−4.6 Gyr
Other designations
Kepler-167, KOI-490, KIC 3239945, TIC 137686948, 2MASS J19303802+3820434[6]
Database references
SIMBAD| data
Exoplanet Archive| data

Kepler-167 is a K-type main-sequence star located about 1,119 light-years (343 pc) away from the Solar System in the constellation of Cygnus. The star has about 78% the mass and 75% the radius of the Sun, and a temperature of 4,884 K (4,611 °C; 8,332 °F). It hosts a system of four known exoplanets. There is also a companion red dwarf star at a separation of about 700 AU, with an estimated orbital period of over 15,000 years.[5]

## Planetary system

[edit]

Kepler-167 is orbited by four known transiting exoplanets, discovered using the Kepler space telescope. The inner three planets are all super-Earths of unknown composition orbiting closer to their star than Mercury is to the Sun. The outermost planet, Kepler-167e, is a Jupiter analog, with 0.91 RJ, 1.01 MJ, and an equilibrium temperature of 134 K (−139 °C; −218 °F). It is the first transiting Jupiter analog discovered.[4][5]

The inner two planets were confirmed in 2014, as part of a study validating hundreds of Kepler planets,[7] and the outer two planets were confirmed in 2016.[4] Observations of Kepler-167e using the Spitzer Space Telescope, published in 2019, ruled out significant transit timing variations, making it easier to predict future transits and plan follow-up observations. As a rare example of a long-period transiting gas giant, Kepler-167e is a target of interest for further observations, for example to characterize its atmosphere.[8] As of 2022[update], four transits of planet e have been detected, with both space-based and ground-based observations.[9]

The Kepler-167 planetary system[5] Companion
(in order from star) | Mass | Semimajor axis
(AU) | Orbital period
(days) | Eccentricity | Inclination | Radius

|
|
|
|
|
|

b | —  | 0.04825±0.00070 | 4.3931539+0.0000048
−0.0000046 | 0  | 88.3+1.6
−1.2° | 1.718±0.070 R🜨
c | —  | 0.0684±0.0010 | 7.406106±0.000010 | 0  | 88.48+0.88
−1.0° | 1.674±0.069 R🜨
d | —  | 0.1404±0.0020 | 21.80379+0.00013
−0.00018 | 0  | 89.26±0.50° | 1.238±0.064 R🜨
e | 1.01+0.16
−0.15 MJ | 1.883±0.027 | 1071.23205+0.00059
−0.00058 | 0.062+0.104
−0.043[4] | 89.9720+0.0069
−0.0079° | 0.9064±0.0375 RJ

## References

[edit]

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.
2. ^ a b c d e f 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 "Kepler-167". NASA Exoplanet Archive. Retrieved 7 November 2022.
4. ^ a b c d e f Kipping, David M.; Torres, Guillermo; et al. (April 2016). "A Transiting Jupiter Analog". The Astrophysical Journal. 820 (2): 112. arXiv:1603.00042. Bibcode:2016ApJ...820..112K. doi:10.3847/0004-637X/820/2/112. S2CID 1892262.
5. ^ a b c d e Chachan, Yayaati; Dalba, Paul A.; et al. (February 2022). "Kepler-167e as a Probe of the Formation Histories of Cold Giants with Inner Super-Earths". The Astrophysical Journal. 926 (1): 62. arXiv:2112.00747. Bibcode:2022ApJ...926...62C. doi:10.3847/1538-4357/ac3ed6. S2CID 244799213.
6. ^ a b c d "Kepler-167". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 7 November 2022.
7. ^ Rowe, Jason F.; Bryson, Stephen T.; et al. (March 2014). "Validation of Kepler'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.
8. ^ Dalba, Paul A.; Tamburo, Patrick (March 2019). "Spitzer Detection of the Transiting Jupiter-analog Exoplanet Kepler-167e". The Astrophysical Journal Letters. 873 (2): L17. arXiv:1903.01478. Bibcode:2019ApJ...873L..17D. doi:10.3847/2041-8213/ab0bb4. S2CID 119473483.
9. ^ Perrocheau, Amaury; Esposito, Thomas M.; et al. (December 2022). "A 16 Hour Transit of Kepler-167 e Observed by the Ground-based Unistellar Telescope Network". The Astrophysical Journal Letters. 940 (2): L39. arXiv:2211.01532. Bibcode:2022ApJ...940L..39P. doi:10.3847/2041-8213/aca073. S2CID 253265546.

* v
* t
* e

Constellation of Cygnus

* List of stars in Cygnus

Stars|

| Bayer|

* α (Deneb)
* β (Albireo)
* γ (Sadr)
* δ (Fawaris)
* ε (Aljanah)
* ζ
* η
* θ
* ι1
* ι2
* κ
* λ
* μ
* ν
* ξ
* o1
* o2
* ο3
* π1 (Azelfafage)
* π2
* ρ
* σ
* τ
* υ
* φ
* χ
* ψ
* ω1
* ω2
* P
* Q

|

Flamsteed|

* 2
* 4
* 8
* 9
* 15
* 16 (c)
* 17
* 20 (d)
* 22
* 23
* 26 (e)
* 27 (b1)
* 28 (b2)
* 29 (b3)
* 33
* 35
* 39
* 41
* 47
* 52
* 55
* 56
* 57
* 59 (f1)
* 61
* 63 (f2)
* 68 (A)
* 71 (g)
* 72
* 74
* 75

Variable|

* R
* T
* W
* X
* Y
* RW
* SS
* SU
* TT
* AZ
* BC
* BI
* CH
* KY
* V380
* V389
* V404
* V476
* V1027
* V1057
* V1143
* V1191
* V1331
* V1334
* V1489
* V1500
* V1668
* V1794
* V1974
* V2214
* V2513

HR|

* 7633
* 7767
* 7912
* 8193

HD|

* 185269
* 185351
* 187123
* 188753
* 190655
* 191612
* 191806
* 197037

Gliese|

* 777
* 806
* 1245

Kepler|

* 2
* 3
* 5
* 6
* 11
* 15
* 16
* 17
* 18
* 22
* 23
* 27
* 28
* 29
* 31
* 32
* 33
* 34
* 35
* 36
* 39
* 40
* 41
* 42
* 44
* 45
* 47
* 48
* 51
* 56
* 61
* 63
* 66
* 67
* 68
* 69
* 70
* 78
* 80
* 84
* 86 (PH2)
* 87
* 89
* 107
* 167
* 182
* 186
* 223
* 289
* 371
* 385
* 411
* 419
* 432
* 445
* 452
* 737
* 1229
* 1520
* 1625
* 1649

WR|

* 133
* 134
* 135
* 136
* 137
* 138a
* 140
* 142
* 147
* 148
* 150

Other|

* AFGL 2591
* BD+40°4210
* BD+43 3654
* Cygnus OB2 #8A
* Cygnus OB2 #12
* Cygnus X-1
* Cygnus X-3
* G79.29+0.46
* GSC 03949-00967
* HAT-P-17
* KELT-20
* KIC 8462852
* KIC 9832227
* KIC 9970396
* KIC 11026764
* KIC 11145123
* KOI-5
* KOI-74
* KOI-81
* MWC 349
* N6946-BH1
* PSR J2032+4127
* SPECULOOS-3
* W75N(B)-VLA2
* WASP-48
* WISE J2000+3629
* Wolf 1069

Star
clusters|

| Association|

* Cygnus OB2
* Cygnus OB7
* Cygnus OB9

|

Open|

* Berkeley 86
* DR 6
* IC 5146
* Messier 29
* Messier 39
* NGC 6811
* NGC 6819
* NGC 6834
* NGC 6866
* NGC 6871
* NGC 6910
* NGC 7031

Molecular
clouds|

* Cygnus Molecular Nebula Complex
* Cygnus X (including DR 21)

Nebulae|

| Dark|

* Barnard 146
* Barnard 147
* IC 5146
* L1014

|

H II|

* NGC 6914
* North America Nebula
* Pelican Nebula
* Sadr Region
* Sh2-101
* Sh2-106

Planetary|

* Abell 78
* Egg Nebula
* IRAS 19475+3119
* IRAS 20324+4057
* Kronberger 61
* M1-92
* NGC 6826
* NGC 6881
* NGC 6884
* NGC 7008
* NGC 7026
* NGC 7027
* NGC 7048
* Soap Bubble Nebula

WR|

* Crescent Nebula

SNR|

* Cygnus Loop (including Veil Nebula)

Galaxies|

| NGC|

* 6801
* 6946
* 7013

|

Other|

* 3C 438
* 4C +48.48
* Cygnus A
* QSO B1954+513
* QSO B2005+403
* ZTF J203349.8+322901.1

Exoplanets|

| Kepler|

* 2b
* 3b
* 3c
* 5b
* 6b
* 11b
* 15b
* 16b
* 17b
* 22b
* 23b
* 28b
* 32b
* 33b
* 34b
* 36b
* 39b
* 40b
* 41b
* 47b
* 56b
* 61b
* 64b (PH1b)
* 68b
* 69b
* 70b
* 78b
* 87c
* 186b
* e
* f
* 371b
* c
* 409b
* 419b
* 432b
* 451b
* 452b
* 560b
* 737b
* 1229b
* 1520b
* 1625b
* 1652b
* 1658b
* 1649b
* c
* 1708b

|

Other|

* b3 Cygni b
* HD 185269 b
* HD 187123 b
* c
* HD 191806 b
* KELT-9b
* KELT-20b
* TrES-5b

Exomoons|

| Kepler|

* 1625b I
* 1708b I

|

*[RA:]: Right Ascension
*[Dec.:]: Declination
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