HD 68988 Overview
HD 68988
1.19
R⦿
5988.00
K
HD 68988 b
HD 68988 c
- Architecture
- HD 68988
- HD 68988
- 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+0.1918-0.1906pc
- 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
-
mV8.20±0.03
-
mTESS7.6263±0.0060
-
mJ7.060±0.021
-
mH6.812±0.020
-
mKs6.743±0.024
-
mW16.715±0.072
-
mW26.710±0.022
-
mW36.756±0.015
-
mW46.708±0.067
-
mGaia8.046110±0.000385
-
mB8.838±0.025
-
Abundances
(Hypatia Catalog) -
[Fe/H] 0.37±0.14 dex
-
[C/H] 0.33±0.22 dex
-
[O/H] 0.23±0.07 dex
-
[Na/H] 0.45±0.16 dex
-
[Mg/H] 0.43±0.16 dex
-
[Al/H] 0.37±0.08 dex
-
[Si/H] 0.35±0.09 dex
-
[Ca/H] 0.32±0.11 dex
-
[Y/H] 0.42±0.13 dex
-
[BaII/H] 0.13±0.01 dex
| 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 |
|---|---|---|---|---|
|
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 |
6.2764187+0.0000082-0.0000078
|
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 |
|
Tp
(days)
|
--- | --- | 2451548.84±0.16 | 2451913.0±0.2 |
|
ω
(deg)
|
--- |
40.4+1.1-1.0
|
31.4±3.5 | 186±8 |
|
TC
(days)
|
--- |
2451549.717+0.005-0.006
|
--- | --- |
- Status
- Confirmed Planet
- Detected By
- Radial Velocity
- Tools
| Source | Rosenthal et al. 2021 |
|---|---|
|
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
|
|
TC
(days)
|
2451660+110-180
|
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
-
The California Legacy Survey. I. A Catalog of 178 Planets from Precision Radial Velocity Monitoring of 719 Nearby Stars over Three Decades
Rosenthal et al. 2021 | Reference Overview -
The Revised TESS Input Catalog and Candidate Target List
TICv8 | Reference Overview -
Gaia Data Release 2
Gaia DR2 | Reference Overview -
Accurate Empirical Radii and Masses of Planets and Their Host Stars with Gaia Parallaxes
Stassun et al. 2017 | Reference Overview -
All WISE Data Release
Cutri et al. 2014 | Reference Overview -
Exoplanet Archive Help: Amateur Light Curves
Amateur-Contributed Light Curves -
CPS
California Planet Search -
Structure and Evolution of Nearby Stars with Planets. II. Physical Properties of ~1000 Cool Stars from the SPOCS Catalog
Takeda et al. 2007 | Reference Overview -
Catalog of Nearby Exoplanets
Butler et al. 2006 | Reference Overview -
Spectroscopic Properties of Cool Stars (SPOCS). I. 1040 F, G, and K Dwarfs from Keck, Lick, and AAT Planet Search Programs
Valenti & Fischer 2005 | Reference Overview -
Chromospheric Ca II Emission in Nearby F, G, K, and M Stars
Wright et al. 2004 | Reference Overview -
The Geneva-Copenhagen survey of the Solar neighbourhood. Ages,metallicities and kinematix properties of ~14 000 F and G dwarfs
Nordstrom et al. 2004 | Reference Overview -
Spectroscopic [Fe/H] for 98 extra-solar planet-host stars. Exploring the probability of planet formation
Santos et al. 2004 | Reference Overview -
2MASS All-Sky Catalog of Point Sources
2MASS Point Source Catalog | Reference Overview -
Radial Velocities of 889 late-type stars
Nidever et al. 2002 | Reference Overview -
Ten Low-Mass Companions from the Keck Precision Velocity Survey
Vogt et al. 2002 | Reference Overview -
The Tycho-2 catalog of the 2.5 million brightest stars
The Tycho-2 Catalog | Reference Overview -
The Hipparcos and Tycho Catalogs
Hipparcos and Tycho Catalogs | Reference Overview -
The Henry Draper catalogue 0h, 1h, 2h, and 3h
Cannon & Pickering 1918 | Reference Overview
- System
- Star
- Confirmed
- Candidate
- False Positive Planet
- Controversial
- False Positive
- Aliases
- Data Access
- Transit Prediction Service
- Time Series
- Kepler | K2
- External Link
- Search
- Browse
- Download
