HD 156668 Overview

HD 156668 0.80 R⦿ 4813.00 K
HD 156668 b
HD 156668 c
Architecture
HD 156668
HD 156668
HD 156668 b
HD 156668 c
Discovery Data
Host Planet Method Year Reference Disposition
HD 156668 HD 156668 b Radial Velocity 2010 Howard et al. 2011 Confirmed Planet
HD 156668 HD 156668 c Radial Velocity 2021 Rosenthal et al. 2021 Confirmed Planet
HD 156668 b
  • Time of Periastron/Transit Midpoint definition ambiguity in ref.; value omitted. (Kammer et al. 2014)
RA
17h17m40.40s
Dec
+29d13m41.38s
Distance
24.3323+0.0165-0.0166
pc
Parallax
41.0687000±0.0277859 mas
Ecliptic Latitude
52.11322 deg
Ecliptic Longitude
254.87298 deg
Galactic Latitude
32.1149 deg
Galactic Longitude
51.96923 deg
Total Proper Motion
228.6121060±0.0497899 mas/yr
Proper Motion (RA)
-72.6271000±0.0413092 mas/yr
Proper Motion (Dec)
216.7690000±0.0506533 mas/yr
Photometry
mV
8.43±0.03
mTESS
7.4911±0.0060
mJ
6.593±0.026
mH
6.117±0.024
mKs
6.004±0.020
mW1
5.985±0.128
mW2
5.975±0.041
mW3
6.015±0.015
mW4
5.962±0.042
mGaia
8.107530±0.000304
mB
9.317±0.033
Source Rosenthal et al. 2021 TICv8 Gaia DR2 Turnbull 2015 Howard et al. 2011 Wright et al. 2004 Gray et al. 2003 Cannon & Pickering 1918
S Index
--- --- --- --- --- 0.194±0.025 --- ---
Teff
(K)
4903.6871576399999±59.6399475505500
4849.920+116.103-89.953
4831.5+55.0-61.5
4813 4850±88 --- --- ---
L
(log10(L⦿))
---
-0.5402456+0.0111407-0.0133572
-0.53743383+0.00049845-0.00049902
-0.509 +0.100-0.130
0.230±0.018 --- --- ---
M
(M⦿)
0.78516704481099997±0.02387628065255000
0.7900000+0.0880730-0.0963432
--- 0.74 0.772±0.020 --- --- ---
R
(R⦿)
0.7745276665009999±0.0121461551612750
0.7604320+0.0367704-0.0486266
0.76872635+0.01995020-0.01720740
0.80 0.720±0.013 --- --- ---
Sp. T
--- --- --- K2 --- --- K3 V K2
γ
(km/s)
--- --- -44.573345753493584±0.166113454046484 --- --- --- --- ---
Metallicity
(dex)
0.049261635137599985±0.055960162716649997 [Fe/H] -0.0511312±0.0470871 [M/H] --- --- 0.05±0.06 [Fe/H] --- --- ---
v sin i
(km/s)
--- --- --- --- 0.50±1.0 --- --- ---
Age
(Gyr)
--- --- --- --- 8.6±4.8 --- --- ---
log g
(log10(cm/s2))
4.55115135292000±0.01808741923925
4.5735700+0.0882860-0.0649929
--- --- 4.598±0.12 --- --- ---
ρ
(g/cm3)
---
2.5328516+0.6644328-0.4546196
--- --- --- --- --- ---
Status
Confirmed Planet
Detected By
Radial Velocity
Tools
Source Howard et al. 2011 Rosenthal et al. 2021 Kammer et al. 2014
Tp
(days)
2454718.57±0.11 2455201.60±0.15 ---
Mp sin i
(M)
4.15±0.58 5.02±0.41 4.15±0.58
Mp sin i
(MJup)
0.013±0.002 0.0158±0.0013 0.0131±0.0018
e
0.0 0.235±0.072 0.22±0.08
P
(days)
4.6455±0.0011
4.64275+0.00020-0.00022
4.64260±0.00078
K
(m/s)
1.89±0.26 2.34±0.20 ---
a
(au)
0.0500±0.0007
0.05024+0.00051-0.00052
---
ω
(deg)
---
36+21-25
---
Status
Confirmed Planet
Detected By
Radial Velocity
Tools
Source Rosenthal et al. 2021
Tp
(days)
2455890+25-19
ω
(deg)
-10.886202+52.712136-42.398892
Mp sin i
(M)
31.50+2.51-2.45
Mp sin i
(MJup)
0.09910+0.00790-0.00770
e
0.0890+0.0840-0.0610
P
(days)
811.3+5.2-5.3
K
(m/s)
2.56±0.20
a
(au)
1.570±0.017
Literature Stellar Spectra (3 Files)
File Type Spectrum Type Wavelength Category Reference
Spectra     echelle grating Optical California Planet Search
Spectra     echelle grating Optical California Planet Search
Spectra     echelle grating Optical California Planet Search
Literature Time Series (1 File Type, 1 File)
File Type Data Points Filter Reference
Photometric Light Curve     145 Hp (Hipparcos) Hipparcos and Tycho Catalogs
Known Objects
2 Confirmed Planets
2 2MASS Point Source Catalog
Data Files
4 KELT Time Series
1 SuperWASP Time Series
2 Associated Literature Data
System
Star
Confirmed
Candidate
Refuted
Controversial
False Positive
Aliases
Data Access
Transit Prediction Service
Time Series
Kepler | K2
External Link
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