HD 20794 Overview

HD 20794 0.92 R⦿ 5444.00 K
HD 20794 b
HD 20794 c
HD 20794 d
HD 20794 e
Other Data
Bibliography 24
Nearby Data 2
Discovery Data
Host Planet Method Year Reference Disposition
HD 20794 HD 20794 b Radial Velocity 2011 Pepe et al. 2011 Confirmed Planet
HD 20794 HD 20794 c Radial Velocity 2011 Pepe et al. 2011 Confirmed Planet
HD 20794 HD 20794 d Radial Velocity 2011 Pepe et al. 2011 Confirmed Planet
HD 20794 HD 20794 e Radial Velocity 2017 Feng et al. 2017 Confirmed Planet
RA
03h19m59.94s
Dec
-43d03m59.95s
Distance
6.00278+0.00854-0.00851
pc
Parallax
166.56100±0.23478 mas
Ecliptic Latitude
-58.11535 deg
Ecliptic Longitude
27.248 deg
Galactic Latitude
-56.06514 deg
Galactic Longitude
250.73443 deg
Total Proper Motion
3120.5047370±0.5118783 mas/yr
Proper Motion (RA)
3033.730000±0.504802 mas/yr
Proper Motion (Dec)
730.775000±0.621295 mas/yr
Photometry
mV
4.26±0.03
mTESS
3.5843±2.1580
mJ
3.032±0.262
mH
2.709±0.234
mKs
2.636±0.278
mIc
3.465
mGaia
4.0663500±0.0051023
mB
4.966±0.020
Source TICv8 Gaia DR2 Feng et al. 2017 Suárez-Andrés et al. 2016 Turnbull 2015 Maldonado et al. 2015 Pepe et al. 2011 Sousa et al. 2008 Takeda et al. 2007 Gray et al. 2006 Valenti & Fischer 2005 Nordstrom et al. 2004 Santos et al. 2004 Reiners & Schmitt 2003a Henry et al. 1996 Henry et al. 1996 Henry et al. 1996 Henry et al. 1996 Henry et al. 1996 Henry et al. 1996 Michigan Catalog, Vol. 2 Cannon & Pickering 1918
S Index
--- --- --- --- --- --- --- --- --- --- --- --- --- --- 0.166 0.168 0.169 0.167 0.167 0.165 --- ---
CAII LOG RHK
--- --- --- --- --- --- --- --- --- --- --- --- --- --- -4.98 -4.98 -4.98 -4.97 -4.97 -4.99 --- ---
Age
(Gyr)
--- --- --- --- 13.5 --- 5.76±0.66 --- >12.08 --- --- --- --- --- --- --- --- --- --- --- --- ---
M
(M⦿)
0.9400000+0.1180350-0.1179420
---
0.813+0.018-0.012
--- 0.85 --- 0.70 0.701
0.845+0.014-0.008
--- --- --- 0.72 --- --- --- --- --- --- --- --- ---
R
(R⦿)
0.9196390+0.0376613-0.0444894
0.834833440+0.174613000-0.162272000
--- --- 0.92 --- --- --- 0.92±0.02 --- --- --- --- --- --- --- --- --- --- --- --- ---
log g
(log10(cm/s2))
4.4839600+0.0700561-0.0743515
--- --- 4.41 4.46 4.49±0.05 4.22±0.11 4.40±0.03
4.46+0.02-0.01
--- --- --- 4.47±0.07 --- --- --- --- --- --- --- --- ---
Teff
(K)
5413.2600+90.8341-117.8470
5751.000+656.333-521.000
--- 5398 5401 5387±18 5401±17 5401±17 --- --- --- --- 5444±31 --- --- --- --- --- --- --- --- ---
Metallicity
(dex)
-0.4026570±0.0065939 [M/H] --- --- -0.44±0.11 [N/H] -0.41 [Fe/H] -0.38±0.02 [Fe/H] -0.40±0.01 [Fe/H] -0.40±0.01 [Fe/H] --- --- --- --- -0.38±0.04 [Fe/H] --- --- --- --- --- --- --- --- ---
γ
(km/s)
--- 87.900387485093177±0.432863187327429 --- --- --- --- 87.9525±0.0001 --- --- --- 87.4 87.2±0.1 --- --- --- --- --- --- --- --- --- ---
v sin i
(km/s)
--- --- --- --- --- --- <3 --- --- --- 1.5±0.5 1 --- <2.0±0.1 --- --- --- --- --- --- --- ---
Sp. T
--- --- G8 --- G8.0V --- G8 V --- --- G8 V --- --- --- --- --- --- --- --- --- --- G8 III G5
L
(log10(L⦿))
-0.1842352+0.0057338-0.0125152
-0.16313215+0.00162573-0.00163182
--- ---
-0.161 +0.030-0.033
--- ---
-0.183+0.002-0.002
--- --- --- --- --- --- --- --- --- --- --- --- --- ---
ρ
(g/cm3)
1.7038879+0.3654975-0.3118367
--- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- ---
Status
Confirmed Planet
Detected By
Radial Velocity
Tools
Source Pepe et al. 2011 Feng et al. 2017
Mp
(M)
2.7±0.3 ---
Mp
(MJup)
0.0085±0.0009 ---
Teq
(K)
660 ---
ω
(deg)
0
386.17+27.50-56.72
Mp sin i
(M)
2.7±0.3
2.82+0.10-0.80
Mp sin i
(MJup)
0.0085±0.0009
0.00887+0.00031-0.00252
e
0
0.27+0.04-0.22
i
(deg)
90 ---
P
(days)
18.315±0.008
18.33+0.01-0.02
K
(m/s)
0.83±0.09
0.810+0.000-0.240
a
(au)
0.1207±0.0020 0.127±0.001
Status
Confirmed Planet
Detected By
Radial Velocity
Tools
Source Pepe et al. 2011 Feng et al. 2017
Mp
(M)
2.4±0.4 ---
Mp
(MJup)
0.0076±0.0013 ---
Teq
(K)
508 ---
ω
(deg)
0
31.510+77.920-123.190
Mp sin i
(M)
2.4±0.4
2.52+0.52-0.83
Mp sin i
(MJup)
0.0076±0.0013
0.00793+0.00164-0.00261
e
0
0.17+0.10-0.16
i
(deg)
90 ---
P
(days)
40.114±0.053
43.17+0.12-0.10
K
(m/s)
0.56±0.10
0.53+0.11-0.17
a
(au)
0.2036±0.0034
0.225+0.002-0.003
Status
Confirmed Planet
Detected By
Radial Velocity
Tools
Source Pepe et al. 2011 Feng et al. 2017
Mp
(M)
4.8±0.6 ---
Mp
(MJup)
0.015±0.002 ---
Teq
(K)
388 ---
ω
(deg)
0
252.67+39.53-44.12
Mp sin i
(M)
4.8±0.6
3.52+0.58-1.01
Mp sin i
(MJup)
0.015±0.002
0.0111+0.0018-0.0032
e
0
0.25+0.16-0.21
i
(deg)
90 ---
P
(days)
90.309±0.184
88.90+0.37-0.41
K
(m/s)
0.85±0.10
0.60+0.10-0.18
a
(au)
0.3499±0.0059 0.364±0.004
Status
Confirmed Planet
Detected By
Radial Velocity
Tools
Source Feng et al. 2017
ω
(deg)
268.14+48.13-32.66
Mp sin i
(M)
4.77+0.96-0.86
Mp sin i
(MJup)
0.0150+0.0030-0.0027
e
0.29+0.14-0.18
P
(days)
147.02+1.43-0.91
K
(m/s)
0.69+0.15-0.13
a
(au)
0.509±0.006
Literature Time Series (1 File Type, 1 File)
File Type Data Points Filter Reference
Photometric Light Curve     127 Hp (Hipparcos) Hipparcos and Tycho Catalogs
Known Objects
4 Confirmed Planets
Data Files
4 Associated Literature Data
System
Star
Confirmed
Candidate
Refuted
Controversial
False Positive
Aliases
Data Access
Transit Prediction Service
Time Series
Kepler | K2
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