Planet GJ 229 Ba
Detailed information about planet GJ 229 Ba and its parameters.
Planet
- Name
- GJ 229 Ba
- Planet Status
-
Confirmed
- Discovered in
-
1995
-
Publication
Status -
—
- Update
-
2025-02-28
- Mass
- Mass*sin(i)
- Semi-Major Axis
- Orbital Period
-
- Eccentricity
-
- Angular distance
-
—
- ω
- Tperi
-
—
- Radius
- Inclination
- Detection Method
-
Imaging, Astrometry
- Mass Meas. Method
-
Astrometry
- Radius Meas. Method
-
Flux
- Primary transit
-
—
- Secondary transit
-
—
- λ
-
—
- Impact Parameter b
-
—
- Time Vr=0
-
—
- Velocity Semiamplitude K
- Calculated temperature
- Measured temperature
- Hottest point longitude
-
—
- Geometric albedo
-
—
- Surface gravity log(g/gH)
-
—
- Alternate Names
-
Gliese 229 b, HD 42581 b, Gl 229 Ba
| Data Source | Type | Result Value | Result Figure | Notes | Reference |
|---|
| Molecule | Data Source | Type | Result Value | Result Figure | Notes | Reference |
|---|---|---|---|---|---|---|
| CH4 | ||||||
| Modeling | Detected | 2022 - HOWE A.R. | ||||
| CO | ||||||
| Modeling | Detected | 2022 - HOWE A.R. | ||||
| CO2 | ||||||
| Modeling | Detected | 2022 - HOWE A.R. | ||||
| H2O | ||||||
| Modeling | Detected | 2022 - HOWE A.R. | ||||
| H2S | ||||||
| Modeling | Detected | 2022 - HOWE A.R. | ||||
| K | ||||||
| Modeling | Detected | 2022 - HOWE A.R. | ||||
| Na | ||||||
| Modeling | Detected | 2022 - HOWE A.R. | ||||
| NH3 | ||||||
| Modeling | Detected | 2022 - HOWE A.R. |
11 Feb 2025
The GJ 229 B system has a semi-major axis of 42.9 AU around GJ 229 A (Thompson et al. 2025)
No link
Star
- Name
- GJ 229
- Distance
- Spectral type
-
M1V
- Apparent magnitude V
-
8.125
- Apparent magnitude I
-
—
- Apparent magnitude J
-
—
- Apparent magnitude H
-
—
- Apparent magnitude K
-
—
- Mass
- Age
- Effective temperature
- Radius
- Metallicity [Fe/H]
-
—
- Detected Disc
-
—
- Magnetic Field
-
—
- RA2000
-
06:10:34.6
- Dec2000
-
-21:51:52.7
- Alternate Names
-
HD 42581, NAJ 1
No remarks
No link
- Simbad
- Most recent references (ADS)