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HD 202206 Overview

  • Star: HD 202206
    • Stellar Radius: 1.05 Solar Radius
    • Stellar Effective Temperature: 5739.12 K
    • Planet: HD 202206 b
      • Disposition Confirmed
    • Planet: HD 202206 c
      • Disposition Confirmed

HD 202206 Architecture & Discovery Information

Name Orbital Separation Planet Size Method Year Reference Disposition
HD 202206
HD 202206 b 256.26 d 6849.2 M⨁ Radial Velocity 2026 Cao et al. 2026 Confirmed Planet
HD 202206 c 1299.22 d 982.09 M⨁ Radial Velocity 2004 Correia et al. 2005 Confirmed Planet
HD 202206
  • This reference contains discussion regarding the stellar multiplicity of this system. (Benedict & Harrison 2017)
  • This reference contains discussion regarding the stellar multiplicity of this system. (Correia et al. 2005)
  • This reference contains discussion regarding the stellar multiplicity of this system. (Udry et al. 2002)
HD 202206 HD 202206 b
  • Planetary parameters drawn from Table 4, model "N-body (i = 51°)" in ref. (Cao et al. 2026)
HD 202206 c
  • Planetary parameters drawn from Table 4, model "N-body (i = 51°)" in ref. (Cao et al. 2026)
RA
21h14m57.73s
Dec
-20d47m23.02s
Distance
45.9665+0.1391-0.1383
pc
Parallax
21.7264000±0.0651418 mas
Ecliptic Latitude
-4.61205 deg
Ecliptic Longitude
314.83117 deg
Galactic Latitude
-40.5046 deg
Galactic Longitude
27.94935 deg
Total Proper Motion
126.2020582±0.0671879 mas/yr
Proper Motion (RA)
-39.0794000±0.0904458 mas/yr
Proper Motion (Dec)
-119.9990000±0.0642291 mas/yr
Photometry
mV 8.08±0.03
mTESS 7.4589±0.0060
mJ 6.850±0.026
mH 6.567±0.016
mKs 6.485±0.023
mW1 6.395±0.091
mW2 6.399±0.027
mW3 6.508±0.022
mW4 6.372±0.123
mGaia 7.910510±0.000292
mB 8.791±0.025
Abundances
(Hypatia Catalog)
[Fe/H] 0.33±0.16 dex
[C/H] 0.20±0.21 dex
[O/H] 0.18±0.25 dex
[Na/H] 0.36±0.15 dex
[Mg/H] 0.29±0.18 dex
[Al/H] 0.29±0.13 dex
[Si/H] 0.30±0.08 dex
[Ca/H] 0.30±0.11 dex
[Y/H] 0.40±0.06 dex
[BaII/H] 0.24±0.16 dex
Tools
Planetary Systems
ExoFOP Target Overview Page
IRSA Finding Chart
Stellar Hosts
Source Cao et al. 2026 TICv8 Gaia DR2 Benedict & Harrison 2017 Stassun et al. 2017 Maldonado et al. 2015 Ghezzi et al. 2010 Sousa et al. 2008 Takeda et al. 2007 Gozdziewski et al. 2006 Correia et al. 2005 Valenti & Fischer 2005 Santos et al. 2004 Udry et al. 2002 Michigan Catalog, Vol. 4 Cannon & Pickering 1918
Teff
(K)
5764.23+64.00-58.00
5739.120+101.861-161.263
5734.5000+77.0000-63.8335
 5766 5760±12 5776±15 5722±60 5757±25 --- --- --- --- 5752±53 5765±40 --- ---
L✶
(log10(L⦿))
0.0374+0.0233-0.0246
0.033478843+0.012604815-0.011179006
0.034864427+0.001683549-0.001690101
 --- --- --- -0.028±0.068
0.02325+0.01853-0.01936
 --- --- --- --- --- --- --- ---
Metallicity
(dex)
0.23+0.12-0.13
[Fe/H] 		0.3151990±0.0094346 [M/H] --- 0.3±0.1 [Fe/H] 0.34 [Fe/H] 0.30±0.02 [Fe/H] 0.30±0.04 [Fe/H] 0.29±0.02 [Fe/H] --- --- --- --- 0.35±0.06 [Fe/H] 0.37±0.07 [Fe/H] --- ---
ρ✶
(g/cm3)
---
1.2499661+0.2980894-0.2521756
 --- --- --- --- --- --- --- --- --- --- --- --- --- ---
M✶
(M⦿)
1.06+0.07-0.06
1.030000+0.140424-0.111584
 --- 1.07±0.08 1.27±0.12 --- 1.10±0.10 1.044
1.074+0.054-0.076
 1.15 --- --- 1.06 1.15 --- ---
R✶
(R⦿)
1.04±0.02
1.0512400+0.0734513-0.0396894
1.0546145+0.0238768-0.0277613
 1.04±0.01 1.03±0.02 --- 0.990±0.080 --- 1.03±0.06 --- --- --- --- --- --- ---
log g
(log10(cm/s2))
4.39+0.21-0.19
4.4075000+0.0820543-0.0765103
 --- 4.5±0.1 4.51±0.04 4.62±0.03 4.27±0.22 4.47±0.03
4.48+0.03-0.05
 --- --- --- 4.50±0.09 4.75±0.20 --- ---
γ
(km/s)
--- --- 14.680259532742564±0.229694849561242 --- --- --- --- --- --- --- 14.721±0.001 18.6 --- 14.681±0.002 --- ---
v sin i
(km/s)
--- --- --- 2.3±0.5 --- --- --- --- --- --- --- 2.3±0.5 --- 2.5 --- ---
Age
(Gyr)
3.94+1.28-3.91
 --- --- 2.9±0.1 --- ---
<1.0+2.0-1.0
 --- 2.04±3.28 --- --- --- --- 5.6±1.2 --- ---
Sp. T
G2 V --- --- G6 V --- --- --- --- --- --- --- --- --- G6 V G6 V G5
Print
Status
Confirmed Planet
Detected By
Radial Velocity
Tools
Planetary Systems
Source Cao et al. 2026 Benedict & Harrison 2017
ω
(deg)
161.64+0.29-0.28
 161.9±0.2
Mp
(M⨁)
6849+254-257
29749+2447-2098
Mp
(MJup)
21.55+0.80-0.81
93.60+7.70-6.60
e
0.426±0.002 0.432±0.001
i
(deg)
51 10.9±0.8
P
(days)
256.26±0.03 256.33±0.02
K
(m/s)
562.58+1.35-1.36
 567±1
a
(au)
0.81+0.01-0.02
 0.83
Tp
(days)
--- 2452176.14±0.12
(BJD)
Mp sin i
(M⨁)
--- 5626
Mp sin i
(MJup)
--- 17.7
Print
Status
Confirmed Planet
Detected By
Radial Velocity
Tools
Planetary Systems
Source Cao et al. 2026 Benedict & Harrison 2017 Gozdziewski et al. 2006 Correia et al. 2005
ω
(deg)
84.73+6.53-4.05
 280±4 92.73 78.99±6.65
Mp sin i
(M⨁)
--- 731 769.5 776
Mp sin i
(MJup)
--- 2.3 2.421 2.44
e
0.171+0.021-0.025
 0.22±0.03 0.255 0.267±0.021
a
(au)
2.39+0.04-0.05
 2.41 2.701 2.55
Tp
(days)
--- 2453103±452
(BJD)
--- ---
Mp
(M⨁)
982±44
5689+922-572
 --- ---
Mp
(MJup)
3.09±0.14
17.9+2.9-1.8
 --- ---
i
(deg)
51 7.7±1.1 --- 90.00
P
(days)
1299.22+3.21-2.76
 1260±11 --- 1383.4±18.4
K
(m/s)
43.04+1.17-1.16
 41±1 --- 42.01±1.50
Print
Literature Time Series (2 File Types, 2 Files)
File Type Data Points Filter Reference
Photometric Light Curve     143 Hp (Hipparcos) Hipparcos and Tycho Catalogs
Radial Velocity Curve     95 Optical Spectra Udry et al. 2002
Known Objects
2 Confirmed Planets
1 2MASS Point Source Catalog
Data Files
1 SuperWASP Time Series
2 Associated Literature Data
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  • Controversial
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  • Transit Prediction Service
  • Time Series
  • Kepler | K2
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