HD 7924 Overview
HD 7924
0.78
R⦿
5177.00
K
HD 7924 b
HD 7924 c
HD 7924 d
Discovery Data
| Host | Planet | Orbital Separation | Planet Size | Method | Year | Reference | Disposition |
|---|---|---|---|---|---|---|---|
| HD 7924 | HD 7924 b | 5.4 d | > 6.36 M⨁ | Radial Velocity | 2008 | Howard et al. 2009 | Confirmed Planet |
| HD 7924 | HD 7924 c | 15.3 d | > 7.86 M⨁ | Radial Velocity | 2015 | Fulton et al. 2015 | Confirmed Planet |
| HD 7924 | HD 7924 d | 24.45 d | > 6.44 M⨁ | Radial Velocity | 2015 | Fulton et al. 2015 | Confirmed Planet |
HD 7924 b
- Time of Periastron/Transit Midpoint definition ambiguity in ref.; value omitted. (Kammer et al. 2014)
- RA
- 01h21m58.96s
- Dec
- +76d42m36.53s
- Distance
- 16.9922±0.0072 pc
- Parallax
- 58.8216000±0.0248941 mas
- Ecliptic Latitude
- 59.41724 deg
- Ecliptic Longitude
- 64.95821 deg
- Galactic Latitude
- 13.94549 deg
- Galactic Longitude
- 124.73557 deg
- Total Proper Motion
- 47.6113429±0.0397999 mas/yr
- Proper Motion (RA)
- -34.643200±0.041486 mas/yr
- Proper Motion (Dec)
- -32.6602000±0.0378131 mas/yr
- Photometry
-
mV7.17896±0.02300
-
mTESS6.3929±0.0060
-
mJ5.618±0.026
-
mH5.231±0.033
-
mKs5.159±0.020
-
mW15.171±0.181
-
mW25.025±0.099
-
mW35.195±0.018
-
mW45.106±0.028
-
mGaia6.925160±0.000196
-
mB7.907±0.006
-
Abundances
(Hypatia Catalog) -
[Fe/H] -0.18±0.12 dex
-
[C/H] -0.18±0.04 dex
-
[O/H] -0.16±0.10 dex
-
[Na/H] -0.22±0.16 dex
-
[Mg/H] -0.02±0.08 dex
-
[Al/H] -0.13±0.12 dex
-
[Si/H] -0.14±0.04 dex
-
[Ca/H] -0.12±0.08 dex
-
[Y/H] -0.21±0.15 dex
-
[BaII/H] -0.27±0.10 dex
| Source | Rosenthal et al. 2021 | TICv8 | Gaia DR2 | Stassun et al. 2017 | Turnbull 2015 | Maldonado et al. 2015 | Fulton et al. 2015 | von Braun et al. 2014 | Santos et al. 2013 | Howard et al. 2009 | Takeda et al. 2007 | Valenti & Fischer 2005 | Wright et al. 2004 | Duncan et al. 1991 | Cannon & Pickering 1918 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
S Index
|
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | 0.222±0.029 | 0.2221 | --- |
|
CAII LOG RHK
|
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | -4.83 | --- | --- |
|
Teff
(K)
|
5171.13037547000±74.18373856175 |
5136.000+158.949-127.586
|
5243.500+66.750-136.167
|
5131±14 | 5177 | 5272±30 | 5075±83 | 5075±83 | 5133±68 | 5177±44 | --- | --- | --- | --- | --- |
|
L✶
(log10(L⦿))
|
--- |
-0.4063648+0.0130036-0.0119426
|
-0.41357356+0.00032420-0.00032444
|
--- |
-0.409 +0.052-0.060
|
--- | --- | -0.438±0.009 | --- | -0.434±0.022 | --- | --- | --- | --- | --- |
|
Metallicity
(dex)
|
-0.1234819334550±0.0575267262194 [Fe/H] | -0.14±0.10 [M/H] | --- | -0.21 [Fe/H] | -0.15 [Fe/H] | -0.11±0.08 [Fe/H] | -0.15±0.03 [Fe/H] | -0.14 [Fe/H] | -0.22±0.04 [Fe/H] | -0.15±0.03 [Fe/H] | --- | --- | --- | --- | --- |
|
v sin i
(km/s)
|
--- | --- | --- | --- | --- | --- | --- | --- | --- | 1.35±0.5 | --- | 1.3±0.5 | --- | --- | --- |
|
M✶
(M⦿)
|
0.8020359940880001±0.0329706799119000 |
0.870000+0.115419-0.097991
|
--- | 0.65±0.05 | 0.83 | --- |
0.832 +0.022-0.036
|
0.81 | 0.77±0.06 |
0.832 +0.022-0.036
|
0.832+0.022-0.036
|
--- | --- | --- | --- |
|
R✶
(R⦿)
|
0.77984042495799999±0.01501771042215000 |
0.7910800+0.0491342-0.0604538
|
0.7527024+0.0406706-0.0188040
|
0.78±0.01 | 0.78 | --- | 0.7821±0.0258 | 0.7821±0.0258 | --- | 0.78±0.02 | 0.78±0.02 | --- | --- | --- | --- |
|
log g
(log10(cm/s2))
|
4.554882688610±0.025629351329 |
4.5811500+0.1047270-0.0814598
|
--- | 4.46±0.03 | 4.59 | 4.79±0.08 |
4.59 +0.02-0.03
|
--- | 4.46±0.12 |
4.59 +0.02-0.03
|
4.59+0.02-0.03
|
--- | --- | --- | --- |
|
Sp. T
|
--- | --- | --- | --- | K0 | --- | K0.5 V | K0 V | --- | K0 V | --- | --- | --- | --- | K0 |
|
γ
(km/s)
|
--- | --- | -22.695622051034494±0.151205163897129 | --- | --- | --- | --- | --- | --- | --- | --- | -23.4 | --- | --- | --- |
|
Age
(Gyr)
|
--- | --- | --- | --- | 0.88 | --- | --- | --- | --- | --- | 0.880±6.360 | --- | --- | --- | --- |
|
ρ✶
(g/cm3)
|
--- |
2.4775582+0.7914384-0.5560609
|
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
- Status
- Confirmed Planet
- Detected By
- Radial Velocity
- Tools
- Planetary Systems
| Source | Stassun et al. 2017 | Rosenthal et al. 2021 | Fulton et al. 2015 | Kammer et al. 2014 | Howard et al. 2009 |
|---|---|---|---|---|---|
|
ω
(deg)
|
--- |
-8.0+55.0-48.0
|
332+71-50
|
--- | 25±60 |
|
Mp sin i
(M⨁)
|
6.4±0.0 | 8.23±0.44 |
8.68+0.52-0.51
|
9.260±1.770 | 9.26 |
|
Mp sin i
(MJup)
|
0.020±0.000 | 0.0259±0.0014 |
0.0273+0.0016-0.0016
|
0.02914±0.00557 | 0.0291 |
|
e
|
0.060±0.050 |
0.049+0.044-0.035
|
0.0580+0.0560-0.0400
|
0 | 0.17±0.16 |
|
P
(days)
|
5.39792±0.00025 |
5.39785+0.00017-0.00018
|
5.39792±0.00025 | 5.39699±0.00013 | 5.3978±0.0015 |
|
K
(m/s)
|
3.6±0.2 |
3.48+0.17-0.16
|
3.59+0.20-0.19
|
--- | 3.87±0.72 |
|
a
(au)
|
0.060±0.000 |
0.05595+0.00075-0.00078
|
0.05664+0.00067-0.00069
|
--- | 0.057 |
|
TC
(days)
|
--- |
2456174.716+0.072-0.084
(BJD)
|
--- | --- | --- |
|
Teq
(K)
|
--- | --- |
825.9+6.6-6.5
|
--- | --- |
|
S
(S⨁)
|
--- | --- |
113.7+3.7-3.6
|
--- | --- |
|
Tp
(days)
|
--- | --- | --- | --- | 2454727.27±0.87 |
- Status
- Confirmed Planet
- Detected By
- Radial Velocity
- Tools
- Planetary Systems
| Source | Fulton et al. 2015 | Rosenthal et al. 2021 |
|---|---|---|
|
ω
(deg)
|
27+52-60
|
26+32-48
|
|
Mp sin i
(M⨁)
|
7.86+0.73-0.71
|
8.84+0.64-0.60
|
|
Mp sin i
(MJup)
|
0.0247+0.0023-0.0022
|
0.0278+0.0020-0.0019
|
|
e
|
0.0980+0.0960-0.0690
|
0.100+0.069-0.062
|
|
P
(days)
|
15.2990+0.0032-0.0033
|
15.3006±0.0018 |
|
K
(m/s)
|
2.31+0.21-0.20
|
2.66±0.17 |
|
a
(au)
|
0.1134+0.0013-0.0014
|
0.1121+0.0015-0.0016
|
|
TC
(days)
|
--- |
2455203.73+0.34-0.36
(BJD)
|
|
Teq
(K)
|
583.6+4.7-4.6
|
--- |
|
S
(S⨁)
|
28.35+0.92-0.89
|
--- |
- Status
- Confirmed Planet
- Detected By
- Radial Velocity
- Tools
- Planetary Systems
| Source | Fulton et al. 2015 | Rosenthal et al. 2021 |
|---|---|---|
|
ω
(deg)
|
119+210-97
|
22+37-48
|
|
Mp sin i
(M⨁)
|
6.44+0.79-0.78
|
6.10+0.67-0.64
|
|
Mp sin i
(MJup)
|
0.0203+0.0025-0.0025
|
0.0192+0.0021-0.0020
|
|
e
|
0.21+0.13-0.12
|
0.17±0.10 |
|
P
(days)
|
24.451+0.015-0.017
|
24.4459+0.0090-0.0091
|
|
K
(m/s)
|
1.65±0.21 |
1.59+0.18-0.17
|
|
a
(au)
|
0.1551+0.0018-0.0019
|
0.1532±0.0021 |
|
TC
(days)
|
--- |
2455188.30+0.93-0.91
(BJD)
|
|
Teq
(K)
|
499±4 | --- |
|
S
(S⨁)
|
15.17+0.49-0.48
|
--- |
Literature Time Series
(2 File Types, 2 Files)
| File Type | Data Points | Filter | Reference |
|---|---|---|---|
| Photometric Light Curve | 140 | Hp (Hipparcos) | Hipparcos and Tycho Catalogs |
| Radial Velocity Curve | 93 | Optical Spectra | Howard et al. 2009 |
- Known Objects
- 3 Confirmed Planets
- 2 2MASS Point Source Catalog
- Data Files
- 3 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 -
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 -
Three Super-Earths Orbiting HD 7924
Fulton et al. 2015 | Reference Overview -
Stellar diameters and temperatures - V. 11 newly characterized exoplanet host stars
von Braun 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 -
SWEET-Cat: A catalogue of parameters for Stars With ExoplanETs. I. New atmospheric parameters and masses for 48 stars with planets
Santos et al. 2013 | Reference Overview -
The NASA-UC Eta-Earth Program: I. A Super-Earth Orbiting HD 7924
Howard et al. 2009 | Reference Overview -
Validation of the new Hipparcos reduction
van Leeuwen et al. 2007 | 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 -
2MASS All-Sky Catalog of Point Sources
2MASS Point Source Catalog | Reference Overview -
Yale Trigonometric Parallaxes, Fourth Edition (van Altena+ 1995)
van Altena et al. 2001 | 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 -
CA II H and K measurements made at Mount Wilson Observatory, 1966-1983
Duncan et al. 1991 | 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
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- Time Series
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