Planet HT Cas (AB)b

Detailed information about planet HT Cas (AB)b and its parameters.

Planet parameters Publications Observability Predictor

Planet

Name
HT Cas (AB)b
Planet Status
Candidate
Discovered in
2023
Update
2024-06-11
Mass
13.78 ( +2.12 -2.12 ) MJ
Mass*sin(i)
13.61 ( ± 2.09 ) MJ
Semi-Major Axis
10.13 ( ± 2.07 ) AU
Orbital Period
11052.2 ( ± 47.45 ) day
Eccentricity
0.82 ( ± 0.05 )
ω
3.71 ( ± 0.08 ) deg
Tperi
—
Radius
—
Inclination
81.0 deg
Detection Method
Timing, Kinematic
Mass Meas. Method
Timing
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
—
Data Source Type Result Value Result Figure Notes Reference
Molecule Data Source Type Result Value Result Figure Notes Reference

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Star

Name
HT Cas (AB)
Distance
131.0 pc
Spectral type
DA+M5.5Ve
Apparent magnitude V
14.1
Mass
0.61 MSun
Age
—
Effective temperature
14500.0 ( ± 500.0 ) K
Radius
0.0118 RSun
Metallicity [Fe/H]
—
Detected Disc
—
Magnetic Field
—
RA2000
01:10:13.1
Dec2000
+60:04:35.5
Alternate Names
—

HT Cas is a cataclysmic variable with orbital period about 1.77 hours. Companion star is a low-mass M5.5 dwarf (m2 = 0.091 MSol, r2 = 0.154 RSol, Teff = ca. 3100K). Average separation 0.658 RSol (= 0.0028 AUs, i = 81°).

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