HD 171238 Overview

HD 171238 0.92 R⦿ 5467.00 K
HD 171238 b
Architecture
HD 171238
HD 171238
HD 171238 b
Discovery Data
Host Planet Method Year Reference Disposition
HD 171238 HD 171238 b Radial Velocity 2009 Ségransan et al. 2010 Confirmed Planet
HD 171238 b
  • The authors note that the data is equally well fit by a retrograde orbital inclination of 162.9 +5.0 -3.1. (Li et al. 2021)
RA
18h34m43.64s
Dec
-28d04m22.03s
Distance
44.8113+0.1117-0.1112
pc
Parallax
22.2871000±0.0550862 mas
Ecliptic Latitude
-4.86472 deg
Ecliptic Longitude
277.68173 deg
Galactic Latitude
-9.05461 deg
Galactic Longitude
5.94504 deg
Total Proper Motion
113.0479471±0.0865541 mas/yr
Proper Motion (RA)
-29.577800±0.104961 mas/yr
Proper Motion (Dec)
-109.1100000±0.0850445 mas/yr
Photometry
mV
8.61±0.03
mTESS
7.9202±0.0061
mJ
7.244±0.019
mH
6.868±0.023
mKs
6.831±0.017
mW1
6.781±0.076
mW2
6.835±0.021
mW3
6.831±0.018
mW4
6.618±0.077
mGaia
8.410990±0.000971
mB
9.410±0.041
Source Li et al. 2021 TICv8 Ment et al. 2018 Gaia DR2 Segransan et al. 2010 Nordstrom et al. 2004 Michigan Catalog, Vol. 3 Cannon & Pickering 1918
L
(log10(L⦿))
-0.203+0.012-0.013
-0.1772209+0.0092668-0.0098120
-0.090±0.050
-0.1760060+0.0014890-0.0014941
--- --- --- ---
Metallicity
(dex)
0.20±0.10 [Fe/H] 0.17±0.10 [M/H] 0.20 [Fe/H] --- 0.17±0.07 [Fe/H] --- --- ---
Age
(Gyr)
7.0+6.0-1.6
--- 7.560±2.960 --- 4.92±4.11 --- --- ---
M
(M⦿)
0.92±0.03
0.95000000+0.14529700-0.08721340
0.960±0.170 --- 0.943±0.033 --- --- ---
CAII LOG RHK
-4.96 --- --- --- --- --- --- ---
Sp. T
G8 V --- G8 V --- K0 V --- G8 V G5
Teff
(K)
---
5440.0000+117.2160-93.8141
5440
5436.3335+91.9165-59.3335
5467±55 --- --- ---
γ
(km/s)
--- --- --- 21.107165379866800±0.172337517403243 21.641±0.002 21.1±0.1 --- ---
v sin i
(km/s)
--- --- --- --- 1.48 1 --- ---
log g
(log10(cm/s2))
---
4.4901000+0.0765027-0.0765631
--- --- 4.43±0.04 --- --- ---
R
(R⦿)
---
0.9180040+0.0344699-0.0509774
1.01±0.07
0.92052895+0.02042760-0.03035620
--- --- --- ---
ρ
(g/cm3)
---
1.7312385+0.3934769-0.3319450
--- --- --- --- --- ---
Status
Confirmed Planet
Detected By
Astrometry, Radial Velocity
Tools
Source Ment et al. 2018 Li et al. 2021 Segransan et al. 2010
Tp
(days)
2463101±45 2455905±20 2455062±20
ω
(deg)
97.0±11.0
46.9+3.9-3.7
47.0 +9.9-9.8
Mp sin i
(M)
864±156
826.0+28.6-28.0
826.32±47.67
Mp sin i
(MJup)
2.72±0.49
2.599+0.090-0.088
2.60±0.15
e
0.234±0.028
0.358+0.028-0.026
0.400 +0.061-0.065
P
(days)
1532±12
1515+16-17
1523 +40-45
K
(m/s)
50.7±2.6 --- 52.2±1.8
a
(au)
2.57±0.16
2.518+0.032-0.033
2.54±0.06
Mp
(M)
---
2797+1144-413
---
Mp
(MJup)
---
8.80+3.60-1.30
---
i
(deg)
---
19.1+7.9-8.5
---
Literature Stellar Spectra (1 File)
File Type Spectrum Type Wavelength Category Reference
Spectra     echelle grating Optical N2K Consortium
Literature Time Series (1 File Type, 1 File)
File Type Data Points Filter Reference
Photometric Light Curve     58 Hp (Hipparcos) Hipparcos and Tycho Catalogs
Known Objects
1 Confirmed Planets
9 2MASS Point Source Catalog
Data Files
1 Associated Literature Data
System
Star
Confirmed
Candidate
False Positive Planet
Controversial
False Positive
Aliases
Data Access
Transit Prediction Service
Time Series
Kepler | K2
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