Planet VHS 1256-1257 (AB)b
Detailed information about planet VHS 1256-1257 (AB)b and its parameters.
Planet
- Name
- VHS 1256-1257 (AB)b
- Planet Status
-
Confirmed
- Discovered in
-
2015
-
Publication
Status -
—
- Update
-
2026-07-16
- Mass
- Mass*sin(i)
-
—
- Semi-Major Axis
- Orbital Period
- Eccentricity
- Angular distance
-
—
- ω
- Tperi
-
—
- Radius
- Inclination
- Detection Method
-
Imaging
- Mass Meas. Method
-
Astrometry
- Radius Meas. Method
-
—
- 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
-
VHS J125601.92-125723.9 (AB)b
| Data Source | Type | Result Value | Result Figure | Notes | Reference |
|---|
| Molecule | Data Source | Type | Result Value | Result Figure | Notes | Reference |
|---|---|---|---|---|---|---|
| C | ||||||
| Measurements | Detected | 2023 - GANDHI S. | ||||
| CH4 | ||||||
| Measurements | Detected | 2024 - PETRUS S. | ||||
| Measurements | Detected | 2023 - MILES B. | ||||
| CO | ||||||
| Measurements | Detected | 2024 - PETRUS S. | ||||
| Measurements | Detected | 2023 - MILES B. | ||||
| CO2 | ||||||
| Measurements | Detected | 2023 - MILES B. | ||||
| H2O | ||||||
| Measurements | Detected | 2023 - MILES B. | ||||
| K | ||||||
| Measurements | Detected | 2023 - MILES B. | ||||
| Na | ||||||
| Measurements | Detected | 2023 - MILES B. | ||||
| O | ||||||
| Measurements | Detected | 2023 - GANDHI S. |
Poon et al. (2024): The planet shows tilted rotation axis like Solar planet Uranus (ip = 90 ± 18°). Spectral type L7.
No link
Star
- Name
- VHS 1256-1257 (AB)
- Distance
- Spectral type
-
M7.5V+M7.5V
- Apparent magnitude V
-
17.8
- Apparent magnitude I
-
—
- Apparent magnitude J
-
—
- Apparent magnitude H
-
—
- Apparent magnitude K
-
—
- Mass
- Age
- Effective temperature
- Radius
-
0.16 RSun
- Metallicity [Fe/H]
-
—
- Detected Disc
-
—
- Magnetic Field
-
—
- RA2000
-
12:56:02.0
- Dec2000
-
-12:57:24.0
- Alternate Names
-
VHS J125601.92-125723.9
Rich et al. (2016): The central star is a binary, whose components are nearly equal in brightness and separated by 0.106" +/- 0.001" (i.e. 1.96 AUs) and trace a highly eccentric orbit (e = 0.88).
No link
- Simbad
- Most recent references (ADS)