GJ 1252 Overview
GJ 1252
0.39
R⦿
3772.00
K
GJ 1252 b
0.106
RJup
- Other Data
- Bibliography 11
- Nearby Data 3
Discovery Data
| Host | Planet | Method | Year | Reference | Disposition |
|---|---|---|---|---|---|
| GJ 1252 | GJ 1252 b | Transit | 2020 | Shporer et al. 2020 | Confirmed Planet |
- RA
- 20h27m42.88s
- Dec
- -56d27m44.23s
- Distance
- 20.3730±0.0192 pc
- Parallax
- 49.055800±0.045873 mas
- Ecliptic Latitude
- -36.09064 deg
- Ecliptic Longitude
- 294.24988 deg
- Galactic Latitude
- -35.49343 deg
- Galactic Longitude
- 341.21724 deg
- Total Proper Motion
- 1301.7499099±0.0726244 mas/yr
- Proper Motion (RA)
- 424.4140000±0.0734525 mas/yr
- Proper Motion (Dec)
- -1230.6200000±0.0725253 mas/yr
- Photometry
-
mV12.68±0.20
-
mTESS10.1165000±0.0073413
-
mJ8.697±0.019
-
mH8.161±0.034
-
mKs7.915±0.023
-
mGaia11.236400±0.000806
-
mB---
| Source | Crossfield et al. 2022 | Shporer et al. 2020 | TICv8 | Gaia DR2 | Hawley et al. 1996 | ExoFOP-TESS TOI | Show Candidate Solutions >> | << Hide Candidate Solutions |
|---|---|---|---|---|---|---|---|---|
|
Teff
(K)
|
3458±137 |
3458+140-133
|
3536.0±157.0 |
3772+175-111
|
--- | 3325±102 | ||
|
γ
(km/s)
|
--- | 7.48356±0.00070 | --- | 7.337706331086256±0.325881110453100 | --- | --- | ||
|
L✶
(log10(L⦿))
|
--- |
-1.71+0.05-0.05
|
-1.66693+0.09303-0.11855
|
--- | --- | --- | ||
|
Metallicity
(dex)
|
--- | 0.1±0.1 [Fe/H] | --- | --- | --- | --- | ||
|
M✶
(M⦿)
|
0.381±0.019 | 0.381±0.019 | 0.3812720±0.0203251 | --- | --- | --- | ||
|
R✶
(R⦿)
|
0.391±0.020 | 0.391±0.020 | 0.3909890±0.0117402 | --- | --- | 0.390989005565643±0.011740200000000 | ||
|
Sp. T
|
--- | M3 | --- | --- | M2.5 | --- | ||
|
Prot
(days)
|
--- | 64±4 | --- | --- | --- | --- | ||
|
ρ✶
(g/cm3)
|
--- | --- | 8.9930423±0.3305338 | --- | --- | --- | ||
|
log g
(log10(cm/s2))
|
--- | --- | 4.8349700±0.0029153 | --- | --- | 4.886930±0.098941 | ||
|
Age
(Gyr)
|
3.9±0.4 | --- | --- | --- | --- | --- |
- Status
- Confirmed Planet
- Detected By
- Radial Velocity, Transit
| Source | Luque & Pallé 2022 | Kokori et al. 2023 | Crossfield et al. 2022 | Patel & Espinoza 2022 | Shporer et al. 2020 | ExoFOP-TESS TOI | Show Candidate Solutions >> | << Hide Candidate Solutions |
|---|---|---|---|---|---|---|---|---|
|
Teq
(K)
|
--- | --- | --- | --- | 1089±69 | 1019.32959786217 | ||
|
b
|
--- | --- | 0.42±0.24 |
0.380+0.270-0.220
|
0.44+0.12-0.17
|
--- | ||
|
Mp
(M⨁)
|
1.32±0.28 | --- | 1.32±0.28 | --- | 2.09±0.56 | --- | ||
|
Mp
(MJup)
|
0.00415±0.00088 | --- | 0.00415±0.00088 | --- | 0.00658±0.00176 | --- | ||
|
e
|
0 | --- | --- | --- | 0 | --- | ||
|
i
(deg)
|
--- |
85.0+2.1-1.8
|
84.8±3.2 | --- |
85.0+2.1-1.8
|
--- | ||
|
P
(days)
|
0.5182331±0.0000084 | 0.5182464±0.0000023 | 0.51824160±0.00000069 |
0.5182418+0.0000007-0.0000006
|
0.5182349+0.0000063-0.0000050
|
0.518242460936129±0.000004184942600 | ||
|
Rp
(R⨁)
|
1.193±0.074 | --- | 1.180±0.078 | --- | 1.193±0.074 | 1.34851205589838±0.09001432000000 | ||
|
Rp
(RJup)
|
0.1064±0.0066 | --- | 0.1053±0.0070 | --- | 0.1064±0.0066 | 0.120306394666054±0.008030553572101 | ||
|
Rp/R✶
|
--- | 0.02802±0.00090 | 0.0277±0.0011 |
0.0276+0.0012-0.0009
|
0.02802+0.00090-0.00097
|
--- | ||
|
K
(m/s)
|
2.00±0.43 | --- | --- | --- | 3.17±0.85 | --- | ||
|
a
(au)
|
--- | --- | 0.00915±0.00015 | --- | 0.00916±0.00076 | --- | ||
|
T14
(hours)
|
--- | --- | 0.724±0.013 | --- |
0.734+0.018-0.014
|
0.856524899839116±0.075350140000000 | ||
|
TC
(days)
|
2458668.09744±0.00091 | 2458876.94510±0.00086 | 2458668.09748±0.00032 |
2459060.40646+0.00040-0.00033
|
2458668.09739+0.00032-0.00029
|
2458654.10332000±0.00036208 | ||
|
ω
(deg)
|
90 | --- | --- | --- | --- | --- | ||
|
ρ
(g/cm3)
|
4.2+1.3-1.1
|
--- | --- | --- | --- | --- | ||
|
a/R✶
|
--- |
5.05+6.35-2.73
|
5.03±0.27 |
5.02+0.36-0.83
|
--- | --- | ||
|
S
(S⨁)
|
--- | --- |
233+48-41
|
--- | --- | 255.140581523463 | ||
|
δ
(%)
|
--- | --- | --- | --- | --- | 0.0831892042362478±0.0040768480000000 |
- Known Objects
- 1 Confirmed Planets
- 1 2MASS Point Source Catalog
- Data Files
- 1 Associated Literature Data
-
ExoClock Project. III. 450 New Exoplanet Ephemerides from Ground and Space Observations
Kokori et al. 2023 | Reference Overview -
Density, not radius, separates rocky and water-rich small planets orbiting M dwarf stars
Luque & Pallé 2022 | Reference Overview -
GJ 1252b: A Hot Terrestrial Super-Earth With No Atmosphere
Crossfield et al. 2022 | Reference Overview -
Empirical Limb-darkening Coefficients and Transit Parameters of Known Exoplanets from TESS
Patel & Espinoza 2022 | Reference Overview -
GJ 1252 b: A 1.2 R⊕ Planet Transiting an M3 Dwarf at 20.4 pc
Shporer et al. 2020 | Reference Overview -
The Revised TESS Input Catalog and Candidate Target List
TICv8 | Reference Overview -
Gaia Data Release 2
Gaia DR2 | Reference Overview -
ExoFOP-TESS TOI Table
ExoFOP-TESS TOI -
2MASS All-Sky Catalog of Point Sources
2MASS Point Source Catalog | Reference Overview -
Revised Coordinates and Proper Motions of the Stars in the Luyten Half-Second Catalog
Bakos et al. 2002 | Reference Overview -
The Palomar/MSU nearby star spectroscopic survey. II. The southern M dwarfs and investigations of magnetic activity.
Hawley et al. 1996 | Reference Overview
- System
- Star
- Confirmed
- Candidate
- False Positive Planet
- Controversial
- False Positive
- Aliases
- Data Access
- Transit Prediction Service
- Time Series
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