BD+20 2457 Overview
BD+20 2457
49.00
R⦿
4137.00
K
BD+20 2457 b
BD+20 2457 c
- Architecture
- BD+20 2457
- BD+20 2457
- Other Data
- Bibliography 7
- Nearby Data 4
Discovery Data
| Host | Planet | Method | Year | Reference | Disposition |
|---|---|---|---|---|---|
| BD+20 2457 | BD+20 2457 b | Radial Velocity | 2009 | Niedzielski et al. 2009 | Confirmed Planet |
| BD+20 2457 | BD+20 2457 c | Radial Velocity | 2009 | Niedzielski et al. 2009 | Confirmed Planet |
- RA
- 10h16m44.83s
- Dec
- +19d53m28.55s
- Distance
- 1539.710±189.925 pc
- Parallax
- 0.5984970±0.0797457 mas
- Ecliptic Latitude
- 8.58559 deg
- Ecliptic Longitude
- 148.87814 deg
- Galactic Latitude
- 53.95226 deg
- Galactic Longitude
- 216.04472 deg
- Total Proper Motion
- 46.8841645±0.0938947 mas/yr
- Proper Motion (RA)
- -36.0773000±0.0944141 mas/yr
- Proper Motion (Dec)
- -29.9425000±0.0931356 mas/yr
- Photometry
-
mV9.743±0.008
-
mTESS8.4752±0.0063
-
mJ7.299±0.023
-
mH6.606±0.021
-
mKs6.420±0.021
-
mW16.380±0.086
-
mW26.355±0.024
-
mW36.363±0.015
-
mW46.191±0.052
-
mGaia9.226840±0.000442
-
mB10.989±0.073
-
mg10.5155000±0.0003238
-
mi8.8404900±0.0001978
-
mr9.2773900±0.0002714
-
mu14.9129000±0.0069337
-
mz8.9778400±0.0007053
-
Abundances
(Hypatia Catalog) -
[Fe/H] -0.75±0.15 dex
-
[C/H] 0.04±0.09 dex
-
[O/H] -0.44±0.20 dex
-
[Na/H] -0.78±0.06 dex
-
[Mg/H] -0.48±0.10 dex
-
[Al/H] -0.67±0.14 dex
-
[Si/H] -0.51±0.01 dex
-
[Ca/H] -0.67±0.08 dex
| Source | TICv8 | Gaia DR2 | Stassun et al. 2017 | Mortier et al. 2013 | Niedzielski et al. 2009 |
|---|---|---|---|---|---|
|
Teff
(K)
|
4181.98000±7.92624 |
4329.900+106.767-128.210
|
4259±64 | 4259±64 | 4137±10 |
|
L✶
(log10(L⦿))
|
--- |
2.768003+0.066618-0.078722
|
--- | --- | 3.17 |
|
Metallicity
(dex)
|
-0.8058490±0.0192305 [M/H] | --- | -0.79 [Fe/H] | -0.79±0.03 [Fe/H] | -1.00±0.07 [Fe/H] |
|
v sin i
(km/s)
|
--- | --- | --- | --- | 2.5 |
|
M✶
(M⦿)
|
--- | --- | 10.83±22.96 | 1.06±0.21 | 2.8±1.5 |
|
R✶
(R⦿)
|
46.0451 |
43.022778+2.665640-2.045740
|
71.020±73.630 | --- | 49±26 |
|
log g
(log10(cm/s2))
|
--- | --- | 1.77±0.19 | 1.77±0.19 | 1.51±0.05 |
|
Sp. T
|
--- | --- | --- | --- | K2 II |
|
γ
(km/s)
|
--- | 145.76850440572622±0.18964274281470 | --- | --- | --- |
- Status
- Confirmed Planet
- Detected By
- Radial Velocity
- Tools
| Source | Niedzielski et al. 2009 | Stassun et al. 2017 |
|---|---|---|
|
Mp sin i
(M⨁)
|
6807.63 | 17668±24966 |
|
Mp sin i
(MJup)
|
21.42 | 55.590±78.550 |
|
e
|
0.15±0.03 | 0.15±0.03 |
|
P
(days)
|
379.63±2.01 | 379.63000±2.00000 |
|
K
(m/s)
|
322.35±9.57 | 322.4±9.6 |
|
a
(au)
|
1.45 | 1.05±0.07 |
|
Tp
(days)
|
2454677.03±28.19 | --- |
|
ω
(deg)
|
207.64±21.99 | --- |
- Status
- Confirmed Planet
- Detected By
- Radial Velocity
- Tools
| Source | Niedzielski et al. 2009 |
|---|---|
|
Tp
(days)
|
2453866.95±27.99 |
|
ω
(deg)
|
126.02±16.54 |
|
Mp sin i
(M⨁)
|
3963.17 |
|
Mp sin i
(MJup)
|
12.47 |
|
e
|
0.18±0.06 |
|
P
(days)
|
621.99±10.20 |
|
K
(m/s)
|
160.03±7.21 |
|
a
(au)
|
2.01 |
Literature Time Series
(1 File Type, 1 File)
| File Type | Data Points | Filter | Reference |
|---|---|---|---|
| Radial Velocity Curve | 37 | Optical Spectra | Niedzielski et al. 2009 |
- Known Objects
- 2 Confirmed Planets
- 2 2MASS Point Source Catalog
- Data Files
- 4 KELT 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 -
Accurate Empirical Radii and Masses of Planets and Their Host Stars with Gaia Parallaxes
Stassun et al. 2017 | 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 -
Substellar-mass Companions to the K-dwarf BD+14 4559 and the K-giants HD 240210 and BD+20 2457
Niedzielski et al. 2009 | 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
