BD+20 274 Overview
-
Star:
BD+20 274
- Stellar Radius: 17.30 Solar Radius
- Stellar Effective Temperature: 4296.00 K
-
Planet:
BD+20 274 b
- Disposition Confirmed
BD+20 274 Architecture & Discovery Information
| Name | Orbital Separation | Planet Size | Method | Year | Reference | Disposition |
|---|---|---|---|---|---|---|
| BD+20 274 | ||||||
| BD+20 274 b | 578.2 d | > 1334.89 M⨁ | Radial Velocity | 2012 | Gettel et al. 2012 | Confirmed Planet |
- RA
- 01h43m40.88s
- Dec
- +21d00m18.97s
- Distance
- 1322.510±80.535 pc
- Parallax
- 0.7226190±0.0452429 mas
- Ecliptic Latitude
- 9.58745 deg
- Ecliptic Longitude
- 31.61777 deg
- Galactic Latitude
- -40.23345 deg
- Galactic Longitude
- 138.9742 deg
- Total Proper Motion
- 3.7882796±0.0863013 mas/yr
- Proper Motion (RA)
- 0.191228±0.102145 mas/yr
- Proper Motion (Dec)
- -3.7834500±0.0862571 mas/yr
- Photometry
- mV 9.367±0.008
- mTESS 8.1716±0.0065
- mJ 7.003±0.019
- mH 6.337±0.020
- mKs 6.169±0.027
- mW1 6.107±0.094
- mW2 6.141±0.035
- mW3 6.106±0.015
- mW4 5.991±0.043
- mGaia 8.916130±0.000468
- mB 10.720±0.061
- mg 10.186300±0.000424
- mi 8.4922800±0.0005281
- mr 8.941711±0.000370
- mu 14.3374000±0.0042651
- mz 8.9044000±0.0010266
-
Abundances
(Hypatia Catalog) - [Fe/H] -0.51±0.04 dex
- [O/H] -0.35±0.09 dex
- [Mg/H] -0.34±0.07 dex
- [Al/H] -0.42±0.06 dex
- [Ca/H] -0.54±0.06 dex
| Source | TICv8 | Gaia DR2 | Mortier et al. 2013 | Gettel et al. 2012 |
|---|---|---|---|---|
|
Teff
(K)
|
4296.0±10.0 |
4322.6504+368.9630-102.1500
|
4391±79 | 4296±10 |
|
L✶
(log10(L⦿))
|
--- |
2.7301151+0.0367723-0.0401763
|
--- | 1.96±0.18 |
|
Metallicity
(dex)
|
-0.46±0.05 [M/H] | --- | -0.32±0.04 [Fe/H] | -0.46±0.07 [Fe/H] |
|
v sin i
(km/s)
|
--- | --- | --- | 2.0±1.5 |
|
M✶
(M⦿)
|
--- | --- | 1.17±0.23 | 0.8±0.2 |
|
R✶
(R⦿)
|
43.4104 |
41.324722+2.024610-6.244220
|
--- | 17.3±0.9 |
|
log g
(log10(cm/s2))
|
--- | --- | 2.03±0.21 | 1.99±0.05 |
|
Sp. T
|
--- | --- | --- | K5 III |
|
γ
(km/s)
|
--- | 8.386571016044059±0.380043128750064 | --- | --- |
- Status
- Confirmed Planet
- Detected By
- Radial Velocity
- Tools
- Planetary Systems
| Source | Gettel et al. 2012 |
|---|---|
|
Tp
(days)
|
2453921.0±33.2
(JD)
|
|
ω
(deg)
|
108.5±38.1 |
|
Mp sin i
(M⨁)
|
1335 |
|
Mp sin i
(MJup)
|
4.2 |
|
e
|
0.21±0.06 |
|
P
(days)
|
578.2±5.4 |
|
K
(m/s)
|
121.4±6.4 |
|
a
(au)
|
1.3 |
Nearby Data (within 30 arcseconds) Browse Nearby Data
+
- Known Objects
- 1 Confirmed Planets
- 1 2MASS Point Source Catalog
- Data Files
- 4 KELT Time Series
- 1 SuperWASP Time Series
- 1 Associated Literature Data
-
The Revised TESS Input Catalog and Candidate Target List
TICv8 Reference Overview -
Gaia Data Release 2
Gaia DR2 Reference Overview -
All WISE Data Release
Cutri et al. 2014 Reference Overview -
New and updated stellar parameters for 71 evolved planet hosts. On the metallicity-giant planet connection
Mortier et al. 2013 Reference Overview -
Planets Around the K-Giants BD+20 274 and HD 219415
Gettel et al. 2012 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
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