HD 97658 Overview
HD 97658
0.70
R⦿
5119.00
K
HD 97658 b
0.189
RJup
HD 97658 Architecture & Discovery Information
| Name | Orbital Separation | Planet Size | Method | Year | Reference | Disposition |
|---|---|---|---|---|---|---|
| HD 97658 | ||||||
| HD 97658 b | 9.49 d | 2.12 R⨁ | Radial Velocity | 2010 | Howard et al. 2011 | Confirmed Planet |
HD 97658 b
- Planet mass value/uncertainties provided via private communication. See literature discrepancies. (Stassun et al. 2017)
- Time of Periastron/Transit Midpoint definition ambiguity in ref.; value omitted. (Kammer et al. 2014)
- RA
- 11h14m33.04s
- Dec
- +25d42m38.15s
- Distance
-
21.5618+0.0254-0.0253pc
- Parallax
- 46.3494000±0.0540856 mas
- Ecliptic Latitude
- 19.11218 deg
- Ecliptic Longitude
- 159.20306 deg
- Galactic Latitude
- 68.29493 deg
- Galactic Longitude
- 211.16108 deg
- Total Proper Motion
- 118.0319107±0.0904553 mas/yr
- Proper Motion (RA)
- -107.5340000±0.0905273 mas/yr
- Proper Motion (Dec)
- 48.6618000±0.0901026 mas/yr
- Photometry
-
mV7.76±0.03
-
mTESS6.9859±0.0061
-
mJ6.203±0.023
-
mH5.821±0.017
-
mKs5.734±0.018
-
mW15.812±0.122
-
mW25.603±0.049
-
mW35.737±0.015
-
mW45.642±0.043
-
mGaia7.513600±0.000389
-
mB8.605±0.024
-
Abundances
(Hypatia Catalog) -
[Fe/H] -0.24±0.08 dex
-
[C/H] -0.20±0.09 dex
-
[O/H] -0.11±0.08 dex
-
[Na/H] -0.29±0.10 dex
-
[Mg/H] -0.18±0.12 dex
-
[Al/H] -0.21±0.09 dex
-
[Si/H] -0.21±0.06 dex
-
[Ca/H] -0.25±0.10 dex
-
[Y/H] -0.26±0.16 dex
-
[BaII/H] -0.35±0.11 dex
| Source | Maxted et al. 2022 | Ellis et al. 2021 | Rosenthal et al. 2021 | TICv8 | Gaia DR2 | Stassun et al. 2017 | Turnbull 2015 | Maldonado et al. 2015 | Van Grootel et al. 2014 | Knutson et al. 2014 | Mortier et al. 2013 | Dragomir et al. 2013 | Howard et al. 2011 | Takeda et al. 2007 | Valenti & Fischer 2005 | Wright et al. 2004 | Gray et al. 2003 | Nidever et al. 2002 | Cannon & Pickering 1918 | ExoFOP | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
S Index
|
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | 0.195±0.025 | --- | --- | --- | --- | ||
|
CAII LOG RHK
|
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | -4.92 | --- | --- | --- | --- | ||
|
Teff
(K)
|
5137±36 | 5212±43 | 5194.04283947500±67.44328812805 |
5120.0000+129.0970-95.6853
|
5192.3335+121.6670-55.3335
|
5175±25 | 5148 | 5217±33 | 5170±50 | 5170±50 | 5137±36 | 5119±50 | 5170±44 | --- | --- | --- | --- | --- | --- | 5120.0±112.4 | ||
|
Metallicity
(dex)
|
-0.35±0.02 [Fe/H] | -0.23±0.03 [Fe/H] | -0.228433598166000±0.057367878087725 [Fe/H] | -0.24±0.10 [M/H] | --- | -0.30 [Fe/H] | -0.26 [Fe/H] | -0.26±0.03 [Fe/H] | -0.23±0.03 [Fe/H] | -0.23±0.03 [Fe/H] | -0.35±0.02 [Fe/H] | -0.30±0.08 [Fe/H] | -0.23±0.03 [Fe/H] | --- | --- | --- | --- | --- | --- | --- | ||
|
ρ✶
(g/cm3)
|
--- | 3.1±0.3 | --- |
2.6413801+0.6750079-0.5399198
|
--- | 3.06±0.50 | --- | --- |
2.66 +0.32-0.28
|
--- | 1.38±0.45 |
3.04+0.38-0.39
|
--- | --- | --- | --- | --- | --- | --- | --- | ||
|
M✶
(M⦿)
|
0.741±0.018 | 0.85±0.08 | 0.7717734582019999±0.0300535030078500 |
0.8600000+0.1215350-0.0894264
|
--- | 0.890±0.150 | 0.80 | --- | 0.77±0.05 | --- | 0.75±0.06 |
0.747+0.031-0.030
|
0.78±0.02 |
0.798+0.026-0.036
|
--- | --- | --- | --- | --- | --- | ||
|
R✶
(R⦿)
|
--- | 0.728±0.008 | 0.7542470595659999±0.0132511380643250 |
0.7713970+0.0337683-0.0498699
|
0.74594533+0.01615650-0.03376650
|
0.74±0.01 | 0.76 | --- |
0.741 +0.024-0.023
|
--- | 0.86±0.11 |
0.703+0.035-0.030
|
0.68±0.02 |
0.76+0.02-0.03
|
--- | --- | --- | --- | --- | 0.77±0.04 | ||
|
log g
(log10(cm/s2))
|
4.47±0.09 | 4.64±0.04 | 4.56714799581500±0.02357410426368 |
4.5980100+0.0833369-0.0772993
|
--- | 4.49±0.04 | 4.6 | 4.72±0.08 |
4.583 +0.047-0.054
|
4.58±0.05 | 4.47±0.09 |
4.618+0.034-0.039
|
4.63±0.06 |
4.60+0.02-0.03
|
--- | --- | --- | --- | --- | 4.60±0.08 | ||
|
L✶
(log10(L⦿))
|
--- |
-0.455+0.009-0.009
|
--- |
-0.4336700+0.0083765-0.0121467
|
-0.43844099+0.00069978-0.00070093
|
--- |
-0.444 +0.056-0.065
|
--- |
-0.450 +0.021-0.023
|
--- | --- | --- | 0.30±0.02 | --- | --- | --- | --- | --- | --- | --- | ||
|
Age
(Gyr)
|
--- |
3.90+2.60-2.03
|
--- | --- | --- | --- | 0.64 | --- | 6.0±1.0 | --- | --- | --- | --- | 0.640±5.480 | --- | --- | --- | --- | --- | --- | ||
|
Sp. T
|
--- | K1 V | --- | --- | --- | --- | K1V | --- | K1 | --- | --- | --- | --- | --- | --- | --- | K1 V | --- | K0 | --- | ||
|
γ
(km/s)
|
--- | --- | --- | --- | -1.388234236132245±0.345937855897139 | --- | --- | --- | --- | --- | --- | --- | --- | --- | -4.0 | --- | --- | -1.7 | --- | --- | ||
|
v sin i
(km/s)
|
--- | --- | --- | --- | --- | --- | --- | --- | 0.5±0.5 | --- | --- | --- | 0.5±0.5 | --- | 1.5±0.5 | --- | --- | --- | --- | --- |
- Status
- Confirmed Planet
- Detected By
- Radial Velocity, Transit
| Source | Ellis et al. 2021 | Kokori et al. 2023 | Maxted et al. 2022 | Ivshina & Winn 2022 | Rosenthal et al. 2021 | Stassun et al. 2017 | Van Grootel et al. 2014 | Knutson et al. 2014 | Kammer et al. 2014 | Dragomir et al. 2013 | Howard et al. 2011 | ExoFOP | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
a/R✶
|
24.2±0.7 | 26.2±1.2 | 23.21±0.52 | --- | --- | 24.41±1.33 | --- | 26.24±1.21 | --- |
24.36+0.97-1.10
|
--- | --- | ||
|
b
|
0.39+0.11-0.18
|
--- | 0.498±0.046 | --- | --- | --- |
0.35 +0.13-0.21
|
--- | --- |
0.23+0.18-0.16
|
--- | --- | ||
|
Mp
(M⨁)
|
8.3±1.1 | --- | 7.62±0.42 | --- | --- | 8.882627±1.230873 |
7.55 +0.83-0.79
|
--- | --- | 7.86±0.73 | --- | --- | ||
|
Mp
(MJup)
|
0.026±0.003 | --- | 0.0240±0.0013 | --- | --- | 0.02794773±0.00387274 |
0.024 +0.003-0.002
|
--- | --- | 0.0247±0.0023 | --- | --- | ||
|
i
(deg)
|
89.05+0.41-0.24
|
89.8±0.5 | 88.83±0.12 | --- | --- | 89.45±0.40 |
89.14 +0.52-0.36
|
89.85±0.48 | --- |
89.45+0.37-0.42
|
--- | --- | ||
|
P
(days)
|
9.4897116±0.0000008 | 9.4893037±0.0000016 | 9.489295 | 9.4893067±0.0000048 |
9.48908+0.00071-0.00072
|
9.49090±0.00160 |
9.4903 +0.0016-0.0056
|
9.489264±0.000064 | 9.4957±0.0022 |
9.4909+0.0016-0.0015
|
9.494±0.005 | 9.4893231±0.0000357 | ||
|
ρ
(g/cm3)
|
4.8±0.7 | --- | 3.48±0.36 | --- | --- | --- |
3.90 +0.70-0.61
|
--- | --- |
3.35+0.76-0.65
|
--- | --- | ||
|
Rp
(R⨁)
|
2.12±0.06 | --- | 2.293±0.070 | --- | --- | 2.4±0.1 |
2.247 +0.098-0.095
|
--- | --- |
2.341+0.170-0.150
|
--- | 2.430400±0.147205 | ||
|
Rp
(RJup)
|
0.189±0.005 | --- | 0.2046±0.0062 | --- | --- | 0.21±0.01 |
0.200 +0.009-0.008
|
--- | --- |
0.2089+0.0152-0.0134
|
--- | 0.2168261±0.0131328 | ||
|
Rp/R✶
|
0.0267±0.0007 | 0.0311±0.0008 | 0.02838±0.00068 | --- | --- | --- |
0.02780 +0.00075-0.00077
|
0.03111±0.00080 | --- | 0.0306±0.0014 | --- | --- | ||
|
K
(m/s)
|
2.8±0.3 | --- | 2.81±0.15 | --- | 2.83±0.19 | 2.9±0.3 |
2.73 +0.26-0.27
|
--- | --- | 2.90±0.25 | --- | --- | ||
|
TC
(days)
|
2458904.9366±0.0008
(BJD)
|
2457339.205224±0.000098
(BJD-TDB)
|
2460865.87639±0.00023
(BJD-TDB)
|
2457785.20179±0.00035
(BJD-TDB)
|
2456020.30+0.19-0.18
(BJD)
|
--- |
2456523.12540 +0.00060-0.00056
(JD)
|
2456665.4584±0.0056
(BJD-TDB)
|
--- |
2456361.8050+0.0030-0.0033
(BJD-TDB)
|
--- |
2459664.0852550±0.0010928
(BJD)
|
||
|
Mp sin i
(M⨁)
|
--- | --- | --- | --- |
7.85+0.57-0.54
|
--- | --- | --- | 8.2±1.2 | 7.86±0.73 | 8.26323±1.27127 | --- | ||
|
Mp sin i
(MJup)
|
--- | --- | --- | --- |
0.0247+0.0018-0.0017
|
--- | --- | --- | 0.026±0.004 | 0.0247±0.0023 | 0.026±0.004 | --- | ||
|
e
|
0.05+0.04-0.03
|
--- | --- | --- |
0.0630+0.0610-0.0440
|
0.060±0.050 |
0.078 +0.057-0.053
|
--- | 0.13±0.07 |
0.0630+0.0590-0.0440
|
--- | --- | ||
|
Teq
(K)
|
751±12 | --- | --- | --- | --- | --- |
757 +12-13
|
--- | --- | --- | --- | 708 | ||
|
S
(S⨁)
|
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | 41.924 | ||
|
δ
(%)
|
0.0712±0.0038 | --- | --- | --- | --- | 0.0850±0.0079 | 0.0773±0.0042 | --- | --- |
0.09340+0.00900-0.00840
|
--- | 0.0940000000±0.0000598519 | ||
|
T14
(hours)
|
--- | --- | --- | --- | --- | --- | 2.8488±0.0288 | --- | --- |
2.971+0.125-0.127
|
--- | 2.757±0.194 | ||
|
ω
(deg)
|
--- | --- | --- | --- |
-10+69-51
|
--- |
71 +65-63
|
--- | --- |
-9.0+67.0-63.0
|
--- | --- | ||
|
a
(au)
|
--- | --- | --- | --- |
0.0805+0.0010-0.0011
|
--- |
0.080 +0.0017-0.0018
|
--- | --- | 0.0796±0.0011 | 0.0831±0.0011 | --- |
Literature Time Series
(1 File Type, 1 File)
| File Type | Data Points | Filter | Reference |
|---|---|---|---|
| Photometric Light Curve | 112 | Hp (Hipparcos) | Hipparcos and Tycho Catalogs |
Nearby Data
(within 30 arcseconds)
Browse Nearby Data
+
- Known Objects
- 1 Confirmed Planets
- 5 2MASS Point Source Catalog
- Data Files
- 1 SuperWASP Time Series
- 1 Associated Literature Data
-
Exploring the Ability of Hubble Space Telescope WFC3 G141 to Uncover Trends in Populations of Exoplanet Atmospheres through a Homogeneous Transmission Survey of 70 Gaseous Planets
Edwards et al. 2023 Reference Overview -
ExoClock Project. III. 450 New Exoplanet Ephemerides from Ground and Space Observations
Kokori et al. 2023 Reference Overview -
Analysis of Early Science observations with the CHaracterising ExOPlanets Satellite (CHEOPS) using PYCHEOPS
Maxted et al. 2022 Reference Overview -
TESS Transit Timing of Hundreds of Hot Jupiters
Ivshina & Winn 2022 Reference Overview -
Directly Determined Properties of HD 97658 from Interferometric Observations
Ellis et al. 2021 Reference Overview -
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 -
ExoFOP TOI Table
ExoFOP -
Accurate Empirical Radii and Masses of Planets and Their Host Stars with Gaia Parallaxes
Stassun et al. 2017 Reference Overview -
ExoCat-1: The Nearby Stellar Systems Catalog for Exoplanet Imaging Missions
Turnbull 2015 Reference Overview -
Searching for signatures of planet formation in stars with circumstellar debris discs
Maldonado et al. 2015 Reference Overview -
Transit Confirmation and Improved Stellar and Planet Parameters for the Super-Earth HD 97658 b and its Host Star
Van Grootel et al. 2014 Reference Overview -
Hubble Space Telescope Near-IR Transmission Spectroscopy of the Super-Earth HD 97658b
Knutson et al. 2014 Reference Overview -
A Spitzer Search for Transits of Radial Velocity Detected Super-Earths
Kammer et al. 2014 Reference Overview -
All WISE Data Release
Cutri et al. 2014 Reference Overview -
New and updated stellar parameters for 90 transit hosts. The effect of the surface gravity
Mortier et al. 2013 Reference Overview -
MOST detects transits of HD 97658b, a warm, likely volatile-rich super-Earth
Dragomir et al. 2013 Reference Overview -
The NASA-UC Eta-Earth Program: III. A Super-Earth orbiting HD 97658 and a Neptune-mass planet orbiting Gl 785
Howard et al. 2011 Reference Overview -
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 -
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 -
Contributions to the Nearby Stars (NStars) Project: Spectroscopy of Stars Earlier than M0 within 40 parsecs: The Northern Sample I
Gray et al. 2003 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 -
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
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