HD 192699 b

HD 192699 b / KhomsaDiscovery[1]

Discovered by| Johnson et al.
Discovery site| Lick Observatory and Keck Observatory
Discovery date| 2007

Detection method

| Doppler spectroscopy
Orbital characteristics[2]

Semi-major axis

| 1.063±0.049 astronomical unit|AU
Eccentricity| 0.082±0.041
Orbital period| 340.94±0.92 d
|{{{apsis}}}|helion}}| 2454079±36 JD

|{{{apsis}}}|helion}}

| 87±37 º
Semi-amplitude| 49.3±2.1 m/s
Star| HD 192699
Physical characteristics[2]
Mass| ≥2.096±0.093 MJ

HD 192699 b, also named Khomsa, is an exoplanet located approximately 214 light-years away[3] in the constellation of Aquila, orbiting the star HD 192699. This planet was discovered in April 2007, massing at least 2.5 times the mass of Jupiter (|♃|J}}}}}}). Despite its orbital distance more than that of Earth, the orbital period is less than a year, because the parent star is more massive than the Sun.[1]

The planet HD 192699 b is named Khomsa. The name was selected in the NameExoWorlds campaign by Tunisia, during the 100th anniversary of the IAU. Khomsa is a palm-shaped amulet that is popular in Tunisia.[4][5]

The existence of this planet around a 1.68 solar mass (M☉) star provides evidence for the existence of planetary systems around A-type main sequence stars.

## See also

* HD 175541 b
* HD 210702 b

## References

1. ↑ 1.0 1.1 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.
2. ↑ 2.0 2.1 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.
3. ↑ Brown, A. G. A. (August 2018). "Gaia Data Release 2: Summary of the contents and survey properties". Astronomy & Astrophysics 616: A1. doi:10.1051/0004-6361/201833051. Bibcode: 2018A&A...616A...1G. Gaia DR2 record for this source at VizieR.
4. ↑ "Approved names" (in en). http://www.nameexoworlds.iau.org/final-results.
5. ↑ "International Astronomical Union | IAU". https://www.iau.org/news/pressreleases/detail/iau1912/.

## External links

* "HD 192699". Exoplanets. http://media4.obspm.fr/exoplanets/base/etoile.php?nom=HD+192699.

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

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