K2-254 Overview
K2-254
0.59
R⦿
4667.00
K
K2-254 b
0.145
RJup
K2-254 c
0.195
RJup
- Other Data
- Bibliography 6
- Nearby Data 5
Discovery Data
| Host | Planet | Method | Year | Reference | Disposition |
|---|---|---|---|---|---|
| K2-254 | K2-254 b | Transit | 2018 | Livingston et al. 2018 | Confirmed Planet |
| K2-254 | K2-254 c | Transit | 2018 | Livingston et al. 2018 | Confirmed Planet |
- RA
- 12h22m12.19s
- Dec
- -04d43m02.25s
- Distance
-
227.775+1.296-1.281pc
- Parallax
- 4.3615000±0.0246529 mas
- Ecliptic Latitude
- -2.12657 deg
- Ecliptic Longitude
- 186.9638 deg
- Galactic Latitude
- 57.38029 deg
- Galactic Longitude
- 289.32884 deg
- Total Proper Motion
- 13.8643151±0.0382416 mas/yr
- Proper Motion (RA)
- 6.594620±0.050105 mas/yr
- Proper Motion (Dec)
- -12.1955000±0.0339993 mas/yr
- Photometry
-
mV14.238±0.137
-
mTESS13.0180±0.0065
-
mJ11.986±0.026
-
mH11.389±0.027
-
mKs11.296±0.021
-
mKep13.765
-
mW111.219±0.024
-
mW211.293±0.022
-
mW311.319±0.195
-
mW48.741
-
mGaia13.742700±0.000236
-
mB15.386±0.021
-
Mission
- K2 : Observed in Campaign 10
| Source | TICv8 | Gaia DR2 | Livingston et al. 2018 |
|---|---|---|---|
|
Teff
(K)
|
4409.0±122.0 |
4667.000+130.000-174.835
|
4629+168-123
|
|
L✶
(log10(L⦿))
|
-0.7646587 |
-0.82243799+0.00622526-0.00631583
|
--- |
|
R✶
(R⦿)
|
0.710629 |
0.59341437+0.04709020-0.03172760
|
0.67±0.01 |
|
Metallicity
(dex)
|
--- | --- |
-0.14+0.18-0.15
[Fe/H]
|
|
M✶
(M⦿)
|
0.69 | --- |
0.71+0.02-0.03
|
|
log g
(log10(cm/s2))
|
4.57363 | --- | 4.64±0.01 |
|
ρ✶
(g/cm3)
|
2.7107294 | --- | --- |
- Status
- Confirmed Planet
- Detected By
- Transit
| Source | Livingston et al. 2018 |
|---|---|
|
a/R✶
|
15.8+0.7-0.8
|
|
Teq
(K)
|
791±26 |
|
b
|
0.72+0.12-0.26
|
|
P
(days)
|
4.09639+0.00081-0.00079
|
|
Rp
(R⨁)
|
1.63+0.28-0.24
|
|
Rp
(RJup)
|
0.145+0.025-0.021
|
|
Rp/R✶
|
0.0223+0.0037-0.0032
|
|
a
(au)
|
0.0448±0.0005 |
|
δ
(%)
|
0.052 |
|
T14
(hours)
|
1.6 |
|
TC
(days)
|
2457582.9757+0.0096-0.0106
|
- Status
- Confirmed Planet
- Detected By
- Transit
| Source | Livingston et al. 2018 |
|---|---|
|
a/R✶
|
31.3+4.8-8.0
|
|
Teq
(K)
|
551±18 |
|
b
|
0.42+0.33-0.29
|
|
P
(days)
|
12.11839+0.00303-0.00321
|
|
Rp
(R⨁)
|
2.19+0.24-0.18
|
|
Rp
(RJup)
|
0.195+0.021-0.016
|
|
Rp/R✶
|
0.0298+0.0032-0.0024
|
|
a
(au)
|
0.0923±0.0010 |
|
δ
(%)
|
0.12 |
|
T14
(hours)
|
2.4 |
|
TC
(days)
|
2457590.6136+0.0101-0.0104
|
- Known Objects
- 2 Confirmed Planets
- 1 K2 Targets
- 1 2MASS Point Source Catalog
- Data Files
- 1 K2 Time Series
- 2 Associated Literature Data
-
The Revised TESS Input Catalog and Candidate Target List
TICv8 | Reference Overview -
Gaia Data Release 2
Gaia DR2 | Reference Overview -
44 Validated Planets from K2 Campaign 10
Livingston et al. 2018 | Reference Overview -
The K2 Ecliptic Plane Input Catalog (EPIC) and Stellar Classifications of 138,600 Targets in Campaigns 1-8
EPIC Catalog | Reference Overview -
All WISE Data Release
Cutri et al. 2014 | Reference Overview -
2MASS All-Sky Catalog of Point Sources
2MASS Point Source Catalog | 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
