HD 192699

Short description: Star in the constellation Aquila

HD 192699 / Chechia  Observation data
Equinox J2000.0]] (ICRS)

Constellation | Aquila[1]
Right ascension |  20h 16m 06.00378s[2]
Declination | +04° 34′ 50.8600″[2]
Apparent magnitude (V) | 6.44[1]
Characteristics
Evolutionary stage | red giant branch[3][2]
Spectral type | G8 IV[4]
B−V color index | 0.867±0.006[1]
Astrometry
Proper motion (μ)|  RA: −40.884[2] mas/yr
Dec.: −51.962[2] mas/yr
Parallax (π)| 13.7264 ± 0.0290[2] mas
Distance| 237.6 ± 0.5 ly
(72.9 ± 0.2 pc)
Absolute magnitude (MV)| 2.36[1]
Details[5]
Mass| 1.26±0.19 M☉
Radius| 4.41±0.21 R☉
Luminosity| 12.26[1] L☉
Surface gravity (log g)| 3.25 cgs
Temperature| 5,041 K
Metallicity [Fe/H]| −0.12 dex
Age| 3.2+1.2
−0.7 Gyr
Other designations

Chechia, BD+04°4395, FK5 3623, HD 192699, HIP 99894, HR 7288, SAO 125628, TYC 504-2358-1, GSC 00504-02358, 2MASS J20160600+0434509[6]

Database references
SIMBAD| data
Exoplanet Archive| data

HD 192699 is a star located approximately 238 light-years away in the constellation of Aquila. It has the apparent magnitude of 6.45. Based on its mass of 1.68 solar, it was an A-type star when it was a main-sequence. In April 2007, a planet was announced orbiting the star, together with HD 175541 b and HD 210702 b.[7]

Although the published spectral class of G8 IV suggests that HD 192699 is a subgiant, models of the star suggest it has reached the base of the red giant branch, having developed a degenerate helium core.[2][3]

The star HD 192699 is named Chechia. The name was selected in the NameExoWorlds campaign by Tunisia, during the 100th anniversary of the IAU. Chechia is a flat-surfaced, traditional red wool hat.[8][9]

The HD 192699 planetary system[10] Companion
(in order from star) | Mass | Semimajor axis
(AU) | Orbital period
(days) | Eccentricity | Inclination | Radius

|
|
|
|
|
|

b / Khomsa | ≥2.096±0.093 MJ | 1.063±0.049 | 340.94±0.92 | 0.082±0.041 | —  | —

## See also

* HD 175541
* HD 210702
* List of extrasolar planets

## References

1. ↑ 1.0 1.1 1.2 1.3 1.4 Anderson, E.; Francis, Ch. (2012), "XHIP: An extended hipparcos compilation", Astronomy Letters 38 (5): 331, doi:10.1134/S1063773712050015, Bibcode: 2012AstL...38..331A.
2. ↑ 2.0 2.1 2.2 2.3 2.4 2.5 Vallenari, A. et al. (2022). "Gaia Data Release 3. Summary of the content and survey properties". Astronomy & Astrophysics. doi:10.1051/0004-6361/202243940 Gaia DR3 record for this source at VizieR.
3. ↑ 3.0 3.1 Ghezzi, L.; Cunha, K.; Schuler, S. C.; Smith, V. V. (2010), "Metallicities of Planet-hosting Stars: A Sample of Giants and Subgiants", The Astrophysical Journal 725 (1): 721, doi:10.1088/0004-637X/725/1/721, Bibcode: 2010ApJ...725..721G.
4. ↑ Houk, N.; Swift, C. (1999), "Michigan catalogue of two-dimensional spectral types for the HD Stars", Michigan Spectral Survey (Ann Arbor, Michigan: Department of Astronomy, University of Michigan) 5, Bibcode: 1999MSS...C05....0H
5. ↑ Brewer, John M. et al. (2016), "Spectral Properties of Cool Stars: Extended Abundance Analysis of 1,617 Planet-Search Stars", The Astrophysical Journal Supplement Series 225 (2): 32, doi:10.3847/0067-0049/225/2/32, Bibcode: 2016ApJS..225...32B.
6. ↑ "HD 192263". SIMBAD. Centre de données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=HD+192263.
7. ↑ Johnson, John Asher et al. (2007). "Retired A Stars and Their Companions: Exoplanets Orbiting Three Intermediate-Mass Subgiants". The Astrophysical Journal 665 (1): 785–793. doi:10.1086/519677. Bibcode: 2007ApJ...665..785J.
8. ↑ "Approved names" (in en). http://www.nameexoworlds.iau.org/final-results.
9. ↑ "International Astronomical Union | IAU". https://www.iau.org/news/pressreleases/detail/iau1912/.
10. ↑ Luhn, Jacob K. et al. (2019). "Retired A Stars and Their Companions. VIII. 15 New Planetary Signals around Subgiants and Transit Parameters for California Planet Search Planets with Subgiant Hosts". The Astronomical Journal 157 (4): 149. doi:10.3847/1538-3881/aaf5d0. Bibcode: 2019AJ....157..149L.

## External links

* "HIC 99894". webviz.u-strasbg.fr/. http://webviz.u-strasbg.fr/viz-bin/VizieR-S?HIC 99894.
* "New Words Atlas". planetquest1.jpl.nasa.gov. http://planetquest1.jpl.nasa.gov/atlas/atlas_search.cfm?&Sort=EarthDist&SortDir=DESC.

Coordinates:  20h 16m 06.0043s, +04° 34′ 50.863″

* v
* t
* e

Aquila constellation

Stars
(list)|

| Bayer|

* α (Altair)
* β (Alshain)
* γ (Tarazed)
* δ
* ε
* ζ (Okab)
* η
* θ (Tseen Foo)
* ι
* κ
* λ
* μ
* ν
* ξ (Libertas)
* ο
* π
* σ
* τ
* υ
* φ
* χ
* ψ
* ω1
* ω2

|

Flamsteed|

* 4
* 5
* 7
* 8
* 10
* 11
* 12 (i)
* 14 (g)
* 15 (h)
* 18
* 19
* 20
* 21
* 22
* 23
* 24
* 26 (f)
* 27 (d)
* 28 (A)
* 31 (b)
* 35 (c)
* 36 (e)
* 37 (k)
* 42
* 45
* 46
* 51
* 56
* 57
* 58
* 62
* 64
* 66
* 68
* 69
* 70
* 71 (l)
* 14 Sge
* 62 Ser

Variable|

* R
* U
* V
* W
* RR
* RT
* SZ
* TT
* UU
* VX
* AA
* CI
* DO
* EL
* FF
* FM
* FN
* KL
* KO
* KP
* OO
* QS
* QY
* V337
* V341
* V346
* V368
* V374
* V417
* V450
* V500
* V536
* V603
* V604
* V605
* V606
* V725
* V794
* V803
* V805
* V822
* V889
* V923
* V1182
* V1208
* V1229
* V1286
* V1291
* V1302
* V1315
* V1333
* V1339
* V1370
* V1379
* V1401 (64 Sgr)
* V1402
* V1412
* V1413
* V1419
* V1425
* V1427
* V1429
* V1432
* V1449
* V1472
* V1493
* V1494
* V1654
* V1663
* V1691
* V1703

HR|

* 7085
* 7099
* 7143
* 7163
* 7208
* 7214
* 7269
* 7288
* 7300
* 7307
* 7313
* 7325
* 7349
* 7353
* 7354
* 7389
* 7396
* 7397
* 7404
* 7407
* 7412
* 7432
* 7438
* 7449
* 7456
* 7471
* 7516
* 7541
* 7542
* 7559
* 7562
* 7569
* 7598
* 7599
* 7636
* 7637
* 7648
* 7681
* 7693
* 7700
* 7717
* 7768
* 7794
* 7803
* 7809
* 7878

HD|

* 179079
* 179218
* 182040
* 183263
* 184279
* 185966
* 186535
* 187734
* 190073
* 192086
* 192699
* 194263
* 195617

Gliese|

* Gliese 735
* Gliese 752

Other|

* AFGL 2298
* B335
* CoRoT-2
* CoRoT-3
* CoRoT-8
* GRS 1915+105
* 1H 1905+000
* J1953−1019
* LDS 678
* NSVS 14256825
* PSR B1853+01
* PSR B1955+09
* PSR B1913+16 (Hulse–Taylor)
* PSR B1915+13
* PSR B1916+14
* PSR B1929+10
* PSR B1933+16
* PSR J1846-0258
* PSR J1903+0327
* PSR J1951+1123
* SGR 1900+14
* SS 433
* 4U 1907+09
* VB 10
* W43A
* W51 e2
* W51 North
* W51 IRS 2
* WR 123

Former|

* ρ (Tso Ke)
* 1
* 2
* 3
* 6
* 9

Star
clusters|

| Open|

* NGC 6709
* NGC 6755
* NGC 6756
* NGC 6837

|

Globular|

* NGC 6749
* NGC 6760

Nebulae|

| Star-forming|

* G29.96-0.02
* G31.31+0.31
* G34.26+0.15
* G35.2-0.74
* G45.45+0.06
* W43
* W48
* W49
* W49A
* W49N
* W51
* W51A
* IRAS 19111+1048

|

Planetary|

* Abell 58
* Abell 70
* IC 4846
* Me 1-1
* NGC 6741
* NGC 6751
* NGC 6772
* NGC 6778
* NGC 6781
* NGC 6790
* NGC 6803
* NGC 6804
* NGC 6807
* NGC 6852
* Sh 2-71
* Vy 2-2

SNR|

* 3C 391
* 3C 396
* 3C 397
* Kes 75
* Kes 79
* W44
* W49B
* W50
* W51C

Galaxies|

| NGC|

* 6814
* 6821
* 6865
* 6900
* 6901
* 6906
* 6915
* 6922
* 6926
* 6929
* 6941

|

Other|

* 3C 403
* QSO B1937-1009

Other|

* Smith's Cloud

0.00

(0 votes)

Original source: https://en.wikipedia.org/wiki/HD 192699. Read more

|

Retrieved from "https://handwiki.org/wiki/index.php?title=Astronomy:HD_192699&oldid=3932225"
*[RA:]: Right Ascension
*[Dec.:]: Declination
*[v]: View this template
*[t]: Discuss this template
*[e]: Edit this template