HD 81817 Overview
HD 81817
83.80
R⦿
4140.00
K
HD 81817 c
HD 81817 b
- Architecture
- HD 81817
- HD 81817
- Other Data
- Bibliography 11
- Nearby Data 3
Discovery Data
| Host | Planet | Method | Year | Reference | Disposition |
|---|---|---|---|---|---|
| HD 81817 | HD 81817 c | Radial Velocity | 2022 | Feng et al. 2022 | Confirmed Planet |
| HD 81817 | HD 81817 b | Radial Velocity | 2020 | Bang et al. 2020 | Confirmed Planet |
- RA
- 09h37m05.18s
- Dec
- +81d19m34.71s
- Distance
-
269.126+23.237-19.865pc
- Parallax
- 3.71783±0.28817 mas
- Ecliptic Latitude
- 60.68718 deg
- Ecliptic Longitude
- 104.47723 deg
- Galactic Latitude
- 32.65294 deg
- Galactic Longitude
- 130.65188 deg
- Total Proper Motion
- 24.3307324±0.5556607 mas/yr
- Proper Motion (RA)
- -16.79430±0.61063 mas/yr
- Proper Motion (Dec)
- -17.605000±0.500417 mas/yr
- Photometry
-
mV4.26489±0.02300
-
mTESS3.0334±0.0096
-
mJ1.698±0.248
-
mH0.8900±0.1860
-
mKs0.7790±0.2320
-
mW1-1.69
-
mW2-0.846
-
mW31.014±0.028
-
mW40.898±0.017
-
mGaia3.8012200±0.0070948
-
mB5.737±0.013
| Source | Feng et al. 2022 | Bang et al. 2020 | TICv8 | Gaia DR2 | Cannon & Pickering 1918 |
|---|---|---|---|---|---|
|
Teff
(K)
|
--- | 4140±55 | 4245.0±122.0 |
4043.3333+56.4167-20.0000
|
--- |
|
L✶
(log10(L⦿))
|
--- | 3.2608 | --- |
3.4601531+0.0363373-0.0396575
|
--- |
|
Metallicity
(dex)
|
--- | -0.17±0.10 [Fe/H] | --- | --- | --- |
|
v sin i
(km/s)
|
--- | 4.7±0.1 | --- | --- | --- |
|
Age
(Gyr)
|
--- | 0.15±0.04 | --- | --- | --- |
|
M✶
(M⦿)
|
4.3±0.5 | 4.3±0.5 | --- | --- | --- |
|
R✶
(R⦿)
|
--- | 83.8±7.8 | 91.4039 |
109.45866+1.09094-2.99180
|
--- |
|
log g
(log10(cm/s2))
|
--- | 1.3±0.2 | --- | --- | --- |
|
Sp. T
|
--- | K3 III | --- | --- | K2 |
- Status
- Confirmed Planet
- Detected By
- Radial Velocity
- Tools
| Source | Feng et al. 2022 |
|---|---|
|
Tp
(days)
|
2453031.768+37.826-81.464
|
|
ω
(deg)
|
227.963+35.347-29.119
|
|
Mp sin i
(M⨁)
|
7185.8+590.8-596.2
|
|
Mp sin i
(MJup)
|
22.609+1.859-1.876
|
|
e
|
0.0950+0.0580-0.0440
|
|
P
(days)
|
622.97802+2.01914-2.12035
|
|
K
(m/s)
|
203.632+7.100-5.139
|
|
a
(au)
|
2.325+0.087-0.095
|
- Status
- Confirmed Planet
- Detected By
- Radial Velocity
- Tools
| Source | Feng et al. 2022 | Bang et al. 2020 |
|---|---|---|
|
Tp
(days)
|
2452830.869+102.061-289.911
|
2449712±108 |
|
ω
(deg)
|
294.231+44.164-93.262
|
320±34 |
|
Mp
(M⨁)
|
7668.6+3097.9-219.6
|
--- |
|
Mp
(MJup)
|
24.128+9.747-0.691
|
--- |
|
e
|
0.0970+0.0900-0.0570
|
0.17±0.07 |
|
i
(deg)
|
95.5940+29.6370-35.3070
|
--- |
|
P
(days)
|
1021.20159+13.88370-9.89130
|
1047.1±8.5 |
|
K
(m/s)
|
183.422+3.551-3.568
|
211.4±16.4 |
|
a
(au)
|
3.233+0.125-0.131
|
3.3±0.1 |
|
Mp sin i
(M⨁)
|
--- | 8613±667 |
|
Mp sin i
(MJup)
|
--- | 27.1±2.1 |
Literature Time Series
(1 File Type, 1 File)
| File Type | Data Points | Filter | Reference |
|---|---|---|---|
| Photometric Light Curve | 128 | Hp (Hipparcos) | Hipparcos and Tycho Catalogs |
- Known Objects
- 2 Confirmed Planets
- 1 2MASS Point Source Catalog
- Data Files
- 2 Associated Literature Data
-
3D Selection of 167 Substellar Companions to Nearby Stars
Feng et al. 2022 | Reference Overview -
Hybrid star HD 81817 accompanied by brown dwarf or substellar companion
Bang et al. 2020 | Reference Overview -
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 -
2MASS All-Sky Catalog of Point Sources
2MASS Point Source Catalog | Reference Overview -
Yale Trigonometric Parallaxes, Fourth Edition (van Altena+ 1995)
van Altena et al. 2001 | Reference Overview -
The Tycho-2 catalog of the 2.5 million brightest stars
The Tycho-2 Catalog | Reference Overview -
The Hipparcos and Tycho Catalogs
Hipparcos and Tycho Catalogs | Reference Overview -
UBVRIJKL Photometry of Bright Stars
Johnson et al. 1966 | 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
