K2-281 Overview
-
Star:
K2-281
- Stellar Radius: 0.76 Solar Radius
- Stellar Effective Temperature: 4812.00 K
-
Planet:
K2-281 b
- Disposition Confirmed
- Planet Radius 0.730 Jupiter Radius
K2-281 Architecture & Discovery Information
| Name | Orbital Separation | Planet Size | Method | Year | Reference | Disposition |
|---|---|---|---|---|---|---|
| K2-281 | ||||||
| K2-281 b | 8.69 d | 8.18 R⨁ | Transit | 2018 | Livingston et al. 2018 | Confirmed Planet |
- RA
- 01h04m54.59s
- Dec
- +07d16m09.18s
- Distance
- 458.139±7.724 pc
- Parallax
- 2.1541900±0.0365179 mas
- Ecliptic Latitude
- .33372 deg
- Ecliptic Longitude
- 17.7343 deg
- Galactic Latitude
- -55.44818 deg
- Galactic Longitude
- 128.82965 deg
- Total Proper Motion
- 22.7232054±0.0696237 mas/yr
- Proper Motion (RA)
- 22.7022000±0.0696562 mas/yr
- Proper Motion (Dec)
- 0.97682100±0.04902080 mas/yr
- Photometry
- mV 15.048±0.092
- mTESS 14.0978±0.0067
- mJ 13.195±0.024
- mH 12.626±0.024
- mKs 12.523±0.029
- mKep 14.763
- mW1 12.459±0.022
- mW2 12.551±0.026
- mW3 12.125
- mW4 8.761
- mGaia 14.767700±0.000524
- mB 16.218±0.050
- mg 15.6772000±0.0030549
- mi 14.361100±0.002674
- mr 14.6918000±0.0029487
- mu 18.0823000±0.0141977
- mz 14.1941000±0.0038518
-
Abundances
(Hypatia Catalog) - [Fe/H] 0.27±0.04 dex
- [Mg/H] 0.33±0.07 dex
- Mission
- K2: Observed in Campaign 8
| Source | TICv8 | Livingston et al. 2018 | Gaia DR2 | Kruse et al. 2019 | Petigura et al. 2018 | ||
|---|---|---|---|---|---|---|---|
|
Teff
(K)
|
4498.13±90.70 | 4812±72 |
4882.8965+137.1040-242.6260
|
--- | --- | ||
|
Metallicity
(dex)
|
0.151±0.084 [M/H] | 0.22±0.05 [Fe/H] | --- | --- | --- | ||
|
ρ✶
(g/cm3)
|
1.5974601 |
4.354+0.594-0.539
|
--- | --- | --- | ||
|
M✶
(M⦿)
|
0.71 | 0.82±0.03 | --- | --- | --- | ||
|
R✶
(R⦿)
|
0.85572 | 0.76±0.01 |
0.6635423+0.0712035-0.0357497
|
0.664 +0.036-0.071
|
0.75 | ||
|
log g
(log10(cm/s2))
|
4.42466 | 4.59±0.02 | --- | --- | --- | ||
|
L✶
(log10(L⦿))
|
-0.5685137 | --- |
-0.64685804+0.01676725-0.01744070
|
--- | --- |
- Status
- Confirmed Planet
- Detected By
- Transit
| Source | Livingston et al. 2018 | Kruse et al. 2019 | Petigura et al. 2018 | ||
|---|---|---|---|---|---|
|
a/R✶
|
25.90+0.69-1.85
|
26.24 +1.76-0.88
|
--- | ||
|
P
(days)
|
8.687721+0.000151-0.000150
|
8.687812 +0.000063-0.000062
|
8.687708 +0.000147-0.000146
|
||
|
Rp
(R⨁)
|
8.18±0.21 |
7.36 +0.42-0.83
|
8.1±1.1 | ||
|
Rp
(RJup)
|
0.730±0.019 |
0.657 +0.037-0.074
|
0.72±0.10 | ||
|
Rp/R✶
|
0.09870+0.00250-0.00120
|
0.1016 +0.0021-0.0036
|
0.0989 +0.0033-0.0014
|
||
|
δ
(%)
|
--- | 1.2388±0.0095 | --- | ||
|
T14
(hours)
|
--- |
2.70960+0.03600-0.04560
|
2.75040+0.04080-0.03120
|
||
|
TC
(days)
|
2457393.88208+0.00073-0.00071
(BJD)
|
2457393.88141±0.00030
(BJD)
|
2457393.88199 +0.000690-0.000673
(BJD)
|
||
|
b
|
0.23+0.20-0.16
|
--- |
0.23 +0.21-0.16
|
||
|
Teq
(K)
|
665±12 | --- | --- | ||
|
a
(au)
|
0.0773±0.0008 | --- | --- |
Nearby Data (within 30 arcseconds) Browse Nearby Data
+
- Known Objects
- 1 Confirmed Planets
- 1 K2 Targets
- 1 2MASS Point Source Catalog
- Data Files
- 1 K2 Time Series
- 1 Associated Literature Data
-
The Revised TESS Input Catalog and Candidate Target List
TICv8 Reference Overview -
Detection of Hundreds of New Planet Candidates and Eclipsing Binaries in K2 Campaigns 0-8
Kruse et al. 2019 Reference Overview -
Sixty Validated Planets from K2 Campaigns 5-8
Livingston et al. 2018 Reference Overview -
Gaia Data Release 2
Gaia DR2 Reference Overview -
Planet Candidates from K2 Campaigns 5─8 and Follow-up Optical Spectroscopy
Petigura 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
