Planet HD 221356 Ab
Detailed information about planet HD 221356 Ab and its parameters.
Planet
- Name
- HD 221356 Ab
- Planet Status
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- Discovered in
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- Update
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- Mass
- Mass*sin(i)
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—
- Semi-Major Axis
- Orbital Period
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—
- Eccentricity
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—
- ω
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—
- Tperi
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- Radius
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—
- Inclination
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—
- Detection Method
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- Mass Meas. Method
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- Radius Meas. Method
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- Primary transit
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- Secondary transit
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- λ
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- Impact Parameter b
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- Time Vr=0
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- Velocity Semiamplitude K
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- Calculated temperature
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- Measured temperature
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- Hottest point longitude
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- Geometric albedo
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- Surface gravity log(g/gH)
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- Alternate Names
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| Data Source | Type | Result Value | Result Figure | Notes | Reference |
|---|
| Molecule | Data Source | Type | Result Value | Result Figure | Notes | Reference |
|---|
Spectral type L1 ± 1. Fourth component of a multiple system including a low-mass pair 11,900 AUs away composed of a late M dwarf (HD 221356 B or KO 3 B, spT M8V) and an early L dwarf (HD 221356 C o KO 3 C, spT L3V) separated about 15 AUs each other.
Initial mass estimate for the fourth component was 0.08 MSol (Gauza et al. 2012). Recent astrometric measurement provide a lower mass compatible with a brown dwarf (Baig et al. 2024).
No link
Star
- Name
- HD 221356 A
- Distance
- Spectral type
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- Apparent magnitude V
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- Mass
- Age
- Effective temperature
- Radius
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RSun
- Metallicity [Fe/H]
- Detected Disc
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—
- Magnetic Field
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—
- RA2000
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- Dec2000
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- Alternate Names
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No remarks
No link
- Simbad
- Most recent references (ADS)