HD 39855 Overview

HD 39855 0.79 R⦿ 5576.00 K
HD 39855 b

HD 39855 Architecture & Discovery Information

Name Orbital Separation Planet Size Method Year Reference Disposition
HD 39855
HD 39855 b 3.25 d > 8.5 M Radial Velocity 2019 Feng et al. 2019 Confirmed Planet
RA
05h54m30.26s
Dec
-19d42m16.01s
Distance
23.2599+0.0188-0.0189
pc
Parallax
42.9636000±0.0345634 mas
Ecliptic Latitude
-43.13527 deg
Ecliptic Longitude
88.22351 deg
Galactic Latitude
-21.08506 deg
Galactic Longitude
224.96554 deg
Total Proper Motion
96.0233904±0.0473255 mas/yr
Proper Motion (RA)
92.8543000±0.0460827 mas/yr
Proper Motion (Dec)
-24.4657000±0.0625453 mas/yr
Photometry
mV
7.51±0.03
mTESS
6.8545±0.0060
mJ
6.207±0.039
mH
5.836±0.018
mKs
5.756±0.026
mW1
5.851±0.194
mW2
5.646±0.064
mW3
5.784±0.012
mW4
5.719±0.040
mGaia
7.32113±0.00018
mB
8.152±0.040
Abundances
(Hypatia Catalog)
[Fe/H] -0.43±0.04 dex
[C/H] -0.48±0.09 dex
[Na/H] -0.49±0.04 dex
[Mg/H] -0.36±0.07 dex
[Al/H] -0.41±0.06 dex
[Si/H] -0.43±0.05 dex
[Ca/H] -0.42±0.06 dex
[BaII/H] -0.44±0.19 dex
Source TICv8 Feng et al. 2019 Gaia DR2 Turnbull 2015 Gray et al. 2006 Nordstrom et al. 2004 Michigan Catalog, Vol. 4 Cannon & Pickering 1918
Teff
(K)
5528.000+111.793-152.612
5576+50-46
5575.5+49.5-45.5
5510 --- --- --- ---
M
(M⦿)
0.9700000+0.1359970-0.1149970
0.87±0.05 --- 0.85 --- --- --- ---
Sp. T
--- G8 V --- G6V G8 V Fe-0.7 --- G6 V G5
L
(log10(L⦿))
-0.3148363+0.0096070-0.0097742
---
-0.31624782+0.00053882-0.00053950
-0.284 +0.055-0.063
--- --- --- ---
R
(R⦿)
0.7587490+0.0489854-0.0361050
---
0.74466527+0.01230443-0.01304847
0.79 --- --- --- ---
log g
(log10(cm/s2))
4.6646400+0.0870960-0.0778508
--- --- 4.63 --- --- --- ---
γ
(km/s)
--- --- 42.583864347784953±0.163036699124333 --- --- 42.1±0.2 --- ---
v sin i
(km/s)
--- --- --- --- --- 3 --- ---
ρ
(g/cm3)
3.1307026+0.9025468-0.5283987
--- --- --- --- --- --- ---
Status
Confirmed Planet
Detected By
Radial Velocity
Source Feng et al. 2019
ω
(deg)
102.97±79.77
Mp sin i
(M)
8.5±1.5
Mp sin i
(MJup)
0.027±0.005
e
0.14±0.11
P
(days)
3.2498±0.0004
K
(m/s)
4.08±0.71
a
(au)
0.041±0.001
Literature Time Series (1 File Type, 1 File)
File Type Data Points Filter Reference
Photometric Light Curve     147 Hp (Hipparcos) Hipparcos and Tycho Catalogs
Known Objects
1 Confirmed Planets
3 2MASS Point Source Catalog
Data Files
1 Associated Literature Data
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  • Kepler | K2
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