HD 68988 Overview

HD 68988 1.19 R⦿ 5988.00 K
HD 68988 b
HD 68988 c
Architecture
HD 68988
HD 68988
HD 68988 b
HD 68988 c
Other Data
Bibliography 19
Nearby Data 4
Discovery Data
Host Planet Method Year Reference Disposition
HD 68988 HD 68988 b Radial Velocity 2001 Vogt et al. 2002 Confirmed Planet
HD 68988 HD 68988 c Radial Velocity 2021 Rosenthal et al. 2021 Confirmed Planet
RA
08h18m22.45s
Dec
+61d27m39.07s
Distance
60.8447+0.1918-0.1906
pc
Parallax
16.4066000±0.0512603 mas
Ecliptic Latitude
40.50824 deg
Ecliptic Longitude
110.90127 deg
Galactic Latitude
33.91958 deg
Galactic Longitude
155.26292 deg
Total Proper Motion
131.8506008±0.0725237 mas/yr
Proper Motion (RA)
128.3290000±0.0732021 mas/yr
Proper Motion (Dec)
30.2696000±0.0590152 mas/yr
Photometry
mV
8.20±0.03
mTESS
7.6263±0.0060
mJ
7.060±0.021
mH
6.812±0.020
mKs
6.743±0.024
mW1
6.715±0.072
mW2
6.710±0.022
mW3
6.756±0.015
mW4
6.708±0.067
mGaia
8.046110±0.000385
mB
8.838±0.025
Source Rosenthal et al. 2021 TICv8 Gaia DR2 Stassun et al. 2017 Takeda et al. 2007 Butler et al. 2006 Valenti & Fischer 2005 Wright et al. 2004 Nordstrom et al. 2004 Santos et al. 2004 Nidever et al. 2002 Vogt et al. 2002 Cannon & Pickering 1918
S Index
--- --- --- --- --- --- --- 0.154±0.020 --- --- --- --- ---
CAII LOG RHK
--- --- --- --- --- --- --- -5.04 --- --- --- --- ---
Teff
(K)
5883.4072834050±103.8477224621
5866.000+104.228-101.400
5838.6665+71.3335-81.1665
5932±23 --- 5960 --- --- --- 5988±52 --- --- ---
Metallicity
(dex)
0.305152852971500±0.057257624370375 [Fe/H] 0.3±0.1 [M/H] --- 0.35 [Fe/H] --- 0.324 [Fe/H] --- --- --- 0.36±0.06 [Fe/H] --- 0.24 [Fe/H] ---
M
(M⦿)
1.1716649466950±0.0489926415846
1.060000+0.127512-0.127446
--- 1.28±0.09
1.124+0.122-0.052
1.18 --- --- --- 1.18 --- 1.20 ---
log g
(log10(cm/s2))
4.30923367128000±0.03035420397415
4.2718300+0.0684464-0.0684873
--- 4.40±0.03
4.40+0.05-0.04
4.413 --- --- --- 4.45±0.15 --- --- ---
v sin i
(km/s)
--- --- --- --- --- 2.84 2.8±0.5 --- 5 --- --- --- ---
R
(R⦿)
1.2557333158750001±0.0288546971229000
1.2467200+0.0602487-0.0439523
1.2616627+0.0358235-0.0302726
1.19±0.02 1.14±0.06 --- --- --- --- --- --- --- ---
Age
(Gyr)
--- --- --- ---
3.40+1.04-2.00
--- --- --- --- --- --- 6 ---
Sp. T
--- --- --- --- --- --- --- --- --- --- --- G2 V G0
γ
(km/s)
--- --- -69.22800020499653±0.12698444289806 --- --- --- -69.0 --- -69.7±0.2 --- -69.5±0.1 --- ---
L
(log10(L⦿))
---
0.21960155+0.01266858-0.01266633
0.22183596+0.00185525-0.00186321
--- --- --- --- --- --- --- --- --- ---
ρ
(g/cm3)
---
0.7711933+0.1383479-0.1478259
--- --- --- --- --- --- --- --- --- --- ---
Status
Confirmed Planet
Detected By
Radial Velocity
Tools
Source Stassun et al. 2017 Rosenthal et al. 2021 Butler et al. 2006 Vogt et al. 2002
Tp
(days)
---
2451549.717+0.005-0.006
2451548.84±0.16 2451913.0±0.2
ω
(deg)
---
40.4+1.1-1.0
31.4±3.5 186±8
Mp sin i
(M)
626±32
608.3+16.8-17.2
591±51 604
Mp sin i
(MJup)
1.97±0.10
1.914+0.053-0.054
1.86±0.16 1.9
e
0.12±0.01
0.1581+0.0027-0.0031
0.1249±0.0087 0.14±0.03
P
(days)
6.27711±0.00021
6.27641870+8.20000000-7.80000000
6.27711±0.00021 6.276±0.002
K
(m/s)
184.7±3.7
192.20+0.61-0.63
184.7±3.7 187±6
a
(au)
0.070±0.000
0.07020+0.00097-0.00099
0.0704±0.0041 0.071
Status
Confirmed Planet
Detected By
Radial Velocity
Tools
Source Rosenthal et al. 2021
Tp
(days)
2451660+110-180
ω
(deg)
-7.4484540+2.1199446-2.4637194
Mp sin i
(M)
4767+890-477
Mp sin i
(MJup)
15.0+2.8-1.5
e
0.450+0.130-0.081
P
(days)
16000+11000-3500
K
(m/s)
121.0+13.0-7.3
a
(au)
13.2+5.3-2.0
Literature Stellar Spectra (2 Files)
File Type Spectrum Type Wavelength Category Reference
Spectra     echelle grating Optical California Planet Search
Spectra     echelle grating Optical California Planet Search
Literature Time Series (3 File Types, 5 Files)
File Type Data Points Filter Reference
Photometric Light Curve     148 Hp (Hipparcos) Hipparcos and Tycho Catalogs
Radial Velocity Curve     28 Optical Spectra Butler et al. 2006
Radial Velocity Curve     13 Optical Spectra Vogt et al. 2002
Radial Velocity Curve     6 Optical Spectra Vogt et al. 2002
Amateur Light Curve     132 R (Generic) Amateur-Contributed Light Curves
Known Objects
2 Confirmed Planets
1 2MASS Point Source Catalog
Data Files
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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