8 UMi Overview
8 UMi
10.30
R⦿
4847.00
K
8 UMi b
- Other Data
- Bibliography 10
- Exoplanet Archive Notes 1
- Nearby Data 3
Discovery Data
| Host | Planet | Method | Year | Reference | Disposition |
|---|---|---|---|---|---|
| 8 UMi | 8 UMi b | Radial Velocity | 2015 | Lee et al. 2015 | Confirmed Planet |
8 UMi
- Some stellar parameter values may be biased due to companion blend (WDS Catalog)
- RA
- 14h56m48.40s
- Dec
- +74d54m03.38s
- Distance
-
162.552+0.651-0.646pc
- Parallax
- 6.1230400±0.0243553 mas
- Ecliptic Latitude
- 73.34497 deg
- Ecliptic Longitude
- 130.65518 deg
- Galactic Latitude
- 39.66099 deg
- Galactic Longitude
- 112.79492 deg
- Total Proper Motion
- 13.2836055±0.0532098 mas/yr
- Proper Motion (RA)
- 12.7947000±0.0538529 mas/yr
- Proper Motion (Dec)
- 3.570690±0.044128 mas/yr
- Photometry
-
mV6.83295±0.02300
-
mTESS5.96761±0.00640
-
mJ5.069±0.027
-
mH4.749±0.036
-
mKs4.515±0.020
-
mW14.468±0.263
-
mW24.187±0.117
-
mW34.473±0.014
-
mW44.415±0.026
-
mGaia6.558960±0.000237
-
mB7.834±0.019
-
Abundances
(Hypatia Catalog) -
[Fe/H] -0.20±0.04 dex
-
[C/H] -0.60±0.09 dex
-
[O/H] -0.09±0.09 dex
-
[Na/H] -0.15±0.04 dex
-
[Mg/H] -0.09±0.07 dex
-
[Al/H] -0.21±0.06 dex
-
[Si/H] -0.21±0.05 dex
-
[Ca/H] -0.08±0.06 dex
-
-
| Source | TICv8 | Gaia DR2 | Stassun et al. 2017 | Lee et al. 2015 | Cannon & Pickering 1918 |
|---|---|---|---|---|---|
|
Teff
(K)
|
4906.0±122.0 |
4921.22+34.28-59.89
|
4847±7 | 4847.4±7.5 | --- |
|
Metallicity
(dex)
|
--- | --- | -0.03 [Fe/H] | -0.03±0.02 [Fe/H] | --- |
|
M✶
(M⦿)
|
--- | --- | 1.44±0.19 | 1.8±0.1 | --- |
|
R✶
(R⦿)
|
10.1467 |
10.025266+0.248538-0.138221
|
10.30±0.57 | 9.90±0.40 | --- |
|
log g
(log10(cm/s2))
|
--- | --- | 2.57±0.03 | 2.57±0.03 | --- |
|
L✶
(log10(L⦿))
|
--- |
1.7251777+0.0029736-0.0029941
|
--- | --- | --- |
|
γ
(km/s)
|
--- | -9.2032520467235202±0.1448824629737714 | --- | --- | --- |
|
Sp. T
|
--- | --- | --- | K0 | K0 |
|
v sin i
(km/s)
|
--- | --- | --- | 3.6 | --- |
|
Age
(Gyr)
|
--- | --- | --- | 1.7±0.2 | --- |
- Status
- Confirmed Planet
- Detected By
- Radial Velocity
- Tools
| Source | Stassun et al. 2017 | Lee et al. 2015 |
|---|---|---|
|
Tp
(days)
|
--- | 2454108.5±22.8 |
|
ω
(deg)
|
--- | 91.00±84.60 |
|
Mp sin i
(M⨁)
|
416±51 | 477±64 |
|
Mp sin i
(MJup)
|
1.31±0.16 | 1.5±0.2 |
|
e
|
0.060±0.090 | 0.060±0.180 |
|
P
(days)
|
93.40000±4.50000 | 93.4±4.5 |
|
K
(m/s)
|
46.1±4.0 | 46.1±4.0 |
|
a
(au)
|
0.49±0.02 | 0.49±0.03 |
Literature Time Series
(1 File Type, 1 File)
| File Type | Data Points | Filter | Reference |
|---|---|---|---|
| Photometric Light Curve | 111 | Hp (Hipparcos) | Hipparcos and Tycho Catalogs |
- Known Objects
- 1 Confirmed Planets
- 2 2MASS Point Source Catalog
- Data Files
- 1 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 -
Search for exoplanet around northern circumpolar stars. Four planets around HD 11755, HD 12648, HD 24064, and 8 Ursae Minoris
Lee et al. 2015 | Reference Overview -
2MASS All-Sky Catalog of Point Sources
2MASS Point Source Catalog | Reference Overview -
The Hipparcos and Tycho Photometric System Passbands
Tycho 2 converted using Bessell 2000 | Reference Overview -
The Tycho-2 catalog of the 2.5 million brightest stars
The Tycho-2 Catalog | Reference Overview -
The Washington Double Star Catalog (WDS, 1996.0)
WDS Catalog | Reference Overview -
The Hipparcos and Tycho Catalogs
Hipparcos and Tycho Catalogs | Reference Overview -
The Henry Draper catalogue 0h, 1h, 2h, and 3h
Cannon & Pickering 1918 | 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
