Planet HD 2057 Ca

Detailed information about planet HD 2057 Ca and its parameters.

Planet

Name
HD 2057 Ca
Planet Status
Confirmed
Discovered in
2006
Update
2024-09-21
Mass
Mass*sin(i)
Semi-Major Axis
Orbital Period
Eccentricity
ω
Tperi
Radius
Inclination
Detection Method
Imaging
Mass Meas. Method
Theoretical
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
2MASS J00250365+4759191 AB, HD 2057 C
Data Source Type Result Value Result Figure Notes Reference
Molecule Data Source Type Result Value Result Figure Notes Reference

Spectral type L4. Primary component of a binary system made of two L-type brown dwarfs separated by 10 AUs and tracing a far-flung circumbinary orbit around star HD 2057.
Configuration should be (ABD)b (with HD 2057 Ca-Cb) if the inner spectroscopic companion star, likely an M dwarf (HD 2057 B, mB = 0.25 MSol for a mass function 0.0008 and M1 = 1.19 MSol) is considered along with the ascertained farther M dwarf companion 13.81 arcseconds away (HD 2057 D, spT M5V, 605 AUs at 43.8 pc, 737 AUs at 53.4 pc).
Gomes et al. (2013) infer that the two resolved brown dwarfs might actually be unresolved binaries themselves, thus making it a possible quadruple substellar system.

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Star

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