Planet LTT 9779 b

Name LTT 9779 b
Planet Status Confirmed
Discovered in 2019
Mass 0.09225 ( -0.00255 +0.00245 ) MJ +
Mass*sin(i)
Semi-Major Axis 0.01679 (± 0.00014) AU
Orbital Period 0.7920641 (± 1.4e-07) day +
Eccentricity 0.0
ω
Tperi
Radius 0.4211 (± 0.0205) RJ +
Inclination 76.39 (± 0.43) deg +
Update 2023-07-11
Detection Method Primary Transit
Mass Detection Method Radial Velocity
Radius Detection Method Primary Transit
Primary transit 2459043.31061 (± 9e-05) JD +
Secondary transit
λ
Impact Parameter b
Time Vr=0
Velocity Semiamplitude K 19.65 (± 0.43) m/s
Calculated temperature 2000.0 K
Measured temperature
Hottest point longitude
Geometric albedo 0.8 ( -0.17 +0.1 )
Surface gravity log(g/gH)
Alternate Names TOI-193 b

Star

LTT 9779
Name LTT 9779
Distance 80.6 (± 0.33) pc
Spectral type G8
Apparent magnitude V 9.76
Mass 1.0 (± 0.03) MSun
Age
Effective temperature 5445.0 (± 84.0) K
Radius 0.92 (± 0.01) RSun
Metallicity [Fe/H] 0.25 (± 0.08)
Detected Disc
Magnetic Field
RA2000 23:54:40.0
Dec2000 -37:37:41
Alternate Names
Planetary system 1 planet

More data


Related publications

Characterising a World Within the Hot Neptune Desert: Transit Observations of LTT 9779 b with HST WFC3
2023 EDWARDS B., CHANGEAT Q., TSIARAS A., ALLAN A., BEHR P. et al.
Astron. J., 166, 158
paper   arxiv  

Converting the sub-Jovian desert of exoplanets to a savanna with TESS, PLATO and Ariel
2023 KALMAN Sz., SZABO G., BORSATO L., BODI A., PAL A. & SZABO R.
MNRAS, 522, 488
paper   arxiv  

The extremely high albedo of LTT 9779 b revealed by CHEOPS - An ultrahot Neptune with a highly metallic atmosphere
2023 HOYER S., JENKINS J., PARMENTIER V., DELEUIL M., SCANDARIATO G. et al.
Astron. & Astrophys., 675, A81
paper  

Empirical limb-darkening coefficients & transit parameters of known exoplanets from TESS
2022 PATEL J. & ESPINOZA N.
Astron. J., 163, 228
paper   arxiv  

An ultrahot Neptune in the Neptune desert
2020 JENKINS J., DIAZ M., KURTOVIC N., ESPINOZA N., VINES J. et al.
Nature Astron., 4, 1148
paper   arxiv  

Phase Curves of Hot Neptune LTT 9779b Suggest a High-Metallicity Atmosphere
2020 CROSSFIELD I., DRAGOMIR D., COWAN N., DAYLAN T., WONG I. et al.
ApJ. Letters, 903, L7
paper  arxiv  

Spitzer Reveals Evidence of Molecular Absorption in the Atmosphere of the Hot Neptune LTT 9779b
2020 DRAGOMIR D., CROSSFIELD I., BENNEKE B., WONG I., DAYLAN T. et al.
ApJ. Letters, 903, L6
paper  arxiv  

A search for multi-planet systems with TESS using a Bayesian N-body retrieval and machine learning
2019 PEARSON K.
Astron. J., 158, 243
paper  arxiv