Planet SDSS J1240-0159 b

Detailed information about planet SDSS J1240-0159 b and its parameters.

Planet parameters Publications Observability Predictor

Planet

Name
SDSS J1240-0159 b
Planet Status
Confirmed
Discovered in
2005
Update
2024-06-19
Mass
15.0 MJ
Mass*sin(i)
12.0 MJ
Semi-Major Axis
0.001176 AU
Orbital Period
0.02594 day
Eccentricity
—
ω
—
Tperi
—
Radius
—
Inclination
53.0 deg
Detection Method
Timing, Other
Mass Meas. Method
—
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
SDSS J124058.03-015919.2 b
Data Source Type Result Value Result Figure Notes Reference
Molecule Data Source Type Result Value Result Figure Notes Reference

Roelofs et al. (2005): alternative solution for a semi-degenerate helium secondary implies a more massive primary star (m1 = 0.79 MSol) and companion (m2 = 0.031 MSol for i ∼ 36°) as well as a greater orbital separation (a = 0.0016 AUs).

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Star

Name
SDSS J1240-0159
Distance
395.0 ( ± 45.0 ) pc
Spectral type
DBe
Apparent magnitude V
—
Mass
0.31 ( +0.1 -0.07 ) MSun
Age
—
Effective temperature
17000.0 K
Radius
0.01 RSun
Metallicity [Fe/H]
—
Detected Disc
—
Magnetic Field
—
RA2000
12:40:58.0
Dec2000
-01:59:19.2
Alternate Names
SDSS J1240-01, SDSS J124058.03-015919.2, ZTF18acyerom

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