HD 4308 Overview

HD 4308 0.98 R⦿ 5768.00 K
HD 4308 b
Architecture
HD 4308
HD 4308
HD 4308 b
Discovery Data
Host Planet Method Year Reference Disposition
HD 4308 HD 4308 b Radial Velocity 2005 Udry et al. 2006 Confirmed Planet
HD 4308
RA
00h44m39.66s
Dec
-65d39m09.78s
Distance
22.0158±0.0107 pc
Parallax
45.3930000±0.0219528 mas
Ecliptic Latitude
-60.18547 deg
Ecliptic Longitude
324.43462 deg
Galactic Latitude
-51.46078 deg
Galactic Longitude
304.05288 deg
Total Proper Motion
758.1402158±0.0402897 mas/yr
Proper Motion (RA)
157.5040000±0.0405994 mas/yr
Proper Motion (Dec)
-741.5990000±0.0402757 mas/yr
Photometry
mV
6.55±0.03
mTESS
5.9339±0.0062
mJ
5.366±0.024
mH
5.101±0.016
mKs
4.945±0.020
mW1
4.943±0.236
mW2
4.675±0.122
mW3
4.942±0.018
mW4
4.886±0.033
mIc
5.835
mGaia
6.3757800±0.0003427
mB
7.200±0.022
Abundances
(Hypatia Catalog)
[Fe/H] -0.30±0.09 dex
[C/H] -0.12±0.15 dex
[O/H] -0.03±0.13 dex
[Na/H] -0.20±0.13 dex
[Mg/H] -0.05±0.14 dex
[Al/H] -0.08±0.13 dex
[Si/H] -0.15±0.14 dex
[Ca/H] -0.14±0.08 dex
[Y/H] -0.39±0.07 dex
[BaII/H] -0.39±0.16 dex
Source TICv8 Gaia DR2 Stassun et al. 2017 Turnbull 2015 Maldonado et al. 2015 Ghezzi et al. 2010 Sanz-Forcada et al. 2010 Sousa et al. 2008 Takeda et al. 2007 Gray et al. 2006 Udry et al. 2006 Valenti & Fischer 2005 Nordstrom et al. 2004 Henry et al. 1996 Michigan Catalog, Vol. 1 Cannon & Pickering 1918
Teff
(K)
5672.420+119.372-145.024
5752.75+29.50-51.75
5686±16 5695 5619±10 5768±31 --- 5644±16 --- --- 5685±13 --- --- --- --- ---
L
(log10(L⦿))
0.0099571359+0.0079642622-0.0127420563
0.0097265980+0.0003891685-0.0003894751
--- 0.029±0.012 --- -0.017±0.060 ---
-0.00877+0.00485-0.00490
--- --- -0.004 --- --- --- --- ---
Metallicity
(dex)
-0.3228520±0.0056259 [M/H] --- -0.35 [Fe/H] -0.31 [Fe/H] -0.35±0.01 [Fe/H] -0.31±0.03 [Fe/H] --- -0.34±0.01 [Fe/H] --- --- -0.31±0.01 [Fe/H] --- --- --- --- ---
Age
(Gyr)
--- --- --- 8.68 --- 9.5±4.5 15 ---
8.680+2.320-2.880
--- 4.3 --- --- --- --- ---
M
(M⦿)
1.0100000+0.1573380-0.0865295
--- 0.930±0.100 0.93 --- 0.90±0.10 --- 0.803
0.933+0.037-0.030
--- 0.83±0.01 --- --- --- --- ---
R
(R⦿)
1.0473600+0.0538603-0.0555618
1.0180403+0.0185661-0.0103612
1.02±0.01 1.02 --- 0.980±0.080 --- ---
1.02+0.04-0.03
--- --- --- --- --- --- ---
log g
(log10(cm/s2))
4.4022000+0.0822370-0.0745088
--- 4.39±0.05 4.41 4.36±0.03 4.52±0.10 --- 4.38±0.03 4.41±0.04 --- 4.49±0.07 --- --- --- --- ---
γ
(km/s)
--- 95.188195090033076±0.158470359097910 --- --- --- --- --- --- --- --- --- 95.8 95.1±0.2 --- --- ---
v sin i
(km/s)
--- --- --- --- --- --- --- --- --- --- 1.2 0.2±0.5 3 --- --- ---
Sp. T
--- --- --- G5V --- --- --- --- --- G6 V Fe-0.9 --- --- --- --- G5 V G5
ρ
(g/cm3)
1.2393783+0.2396310-0.2993837
--- --- --- --- --- --- --- --- --- --- --- --- --- --- ---
S Index
--- --- --- --- --- --- --- --- --- --- --- --- --- 0.200±0.069 --- ---
Status
Confirmed Planet
Detected By
Radial Velocity
Tools
Source Stassun et al. 2017 Udry et al. 2006
Tp
(days)
--- 2453314.70±2.0
ω
(deg)
--- 359±47
Mp sin i
(M)
16±0 14.0475
Mp sin i
(MJup)
0.050±0.000 0.0442
e
0.0 0.00±0.01
P
(days)
15.56000±0.02000 15.56±0.02
K
(m/s)
4.1±0.2 4.07±0.2
a
(au)
0.12±0.00 0.115
Literature Stellar Spectra (1 File)
File Type Spectrum Type Wavelength Category Reference
Spectra     Infrared Lawler et al. 2009
Literature Time Series (2 File Types, 3 Files)
File Type Data Points Filter Reference
Photometric Light Curve     147 Hp (Hipparcos) Hipparcos and Tycho Catalogs
Radial Velocity Curve     72 Optical Spectra O'Toole et al. 2009
Radial Velocity Curve     41 Optical Spectra Udry et al. 2006
Known Objects
1 Confirmed Planets
2 2MASS Point Source Catalog
Data Files
1 SuperWASP Time Series
1 Associated Literature Data
System
Star
Confirmed
Candidate
False Positive Planet
Controversial
False Positive
Aliases
Data Access
Transit Prediction Service
Time Series
Kepler | K2
External Link
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