Planet TOI-1859 Ab

Detailed information about planet TOI-1859 Ab and its parameters.

Planet parameters Publications Observability Predictor

Planet

Name
TOI-1859 Ab
Planet Status
Confirmed
Discovered in
2023
Publication
Status
—
Update
2025-09-09
Mass
—
Mass*sin(i)
—
Semi-Major Axis
0.337 ( +0.04 -0.036 ) AU
Orbital Period
63.3847 ( ± 0.0001 ) day
Eccentricity
0.57 ( ± 0.16 )
Angular distance
—
ω
80.0 ( +83.0 -48.0 ) deg
Tperi
—
Radius
0.87 ( ± 0.07 ) RJ
Inclination
88.64 ( +0.38 -0.28 ) deg
Detection Method
Primary Transit
Mass Meas. Method
—
Radius Meas. Method
Primary Transit
Primary transit
2458062.0014 ( ± 0.00014 ) JD
Secondary transit
—
λ
38.9 ( ± 2.8 ) deg
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

See also Planets in Binaries webpage.

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Star

Name
TOI-1859 A
Distance
223.5 ( ± 1.0 ) pc
Spectral type
F7V
Apparent magnitude V
11.0
Apparent magnitude I
—
Apparent magnitude J
—
Apparent magnitude H
—
Apparent magnitude K
—
Mass
1.29 ( ± 0.06 ) MSun
Age
—
Effective temperature
6341.0 ( ± 70.0 ) K
Radius
1.36 ( ± 0.12 ) RSun
Metallicity [Fe/H]
0.12 ( ± 0.056 )
Detected Disc
—
Magnetic Field
—
RA2000
18:39:20.0
Dec2000
+69:31:22.0
Alternate Names
—

An M dwarf companion star (Gaia DR3 2259354802893022208, G = 20.05, spT M3V), lies 10.56 arcseconds away (2,360 AUs at 223 pc; Mugrauer & Michel 2020, Eeles-Nolle & Armstrong 2025).

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