Planet TOI-3884 b

Name TOI-3884 b
Planet Status Confirmed
Discovered in 2022
Mass 0.0519 ( -0.0057 +0.011 ) MJ
Mass*sin(i)
Semi-Major Axis 0.0354 (± 0.0014) AU
Orbital Period 4.5445697 (± 9.4e-06) day
Eccentricity 0.32 ( -0.32 +0.0 )
ω 190.0 (± 150.0) deg
Tperi
Radius 0.5629 (± 0.025) RJ
Inclination 89.93 ( -0.16 +0.12 ) deg
Update 2022-10-21
Detection Method Primary Transit
Mass Detection Method Radial Velocity
Radius Detection Method Primary Transit
Primary transit 2459642.86314 (± 0.00012) JD
Secondary transit
λ
Impact Parameter b 0.072 (± 0.072)
Time Vr=0
Velocity Semiamplitude K 14.9 ( -1.6 +3.4 ) m/s
Calculated temperature 463.0 (± 12.0) K
Measured temperature
Hottest point longitude
Geometric albedo
Surface gravity log(g/gH)
Alternate Names

Star

TOI-3884
Name TOI-3884
Distance 43.338 (± 0.05) pc
Spectral type
Apparent magnitude V 14.0
Mass 0.2813 (± 0.067) MSun
Age
Effective temperature 3269.0 (± 70.0) K
Radius 0.3043 (± 0.009) RSun
Metallicity [Fe/H] 0.23 (± 0.12)
Detected Disc
Magnetic Field
RA2000 12:06:17.0
Dec2000 +12:30:25
Alternate Names
Planetary system 1 planet

More data


Related publications

An In-Depth Look at TOI-3884b: a Super-Neptune Transiting a M4 Dwarf with Persistent Star Spot Crossings
2023 LIBBY-ROBERTS J., SCHUTTE M., HEBB L., KANODIA Sh., CANAS C. et al.
Astron. J., 164, 249
paper   arxiv  

TOI-3884 b: A rare 6-RE planet that transits a low-mass star with a giant and likely polar spot
2022 ALMENARA J., BONFILS X., FORVEILLE Th. ASTUDILLO-DEFRU N., CIARDI D. et al.
Astron. & Astrophys., 667, L11
paper   arxiv