ExoAtmospheres
IAC community database for exoplanet atmospheric observations

 

V 1298 Tau b

Planet status Confirmed
Planet type Warm Jupiter
Period 24.1382 d
Mass 2.2 MJ 699.16 M⊕
Radius 0.8217 RJ 9.20304 R⊕
Semi major axis 0.1688 AU
Star name V 1298 Tau
Star distance 108.5 pc
Star teff 4970 K
Star radius 1.305 R☉
Temperature (calculated) 677 K
V 10.1 mag
J N/A
K N/A
Alternate names
Exoplanet Encyclopaedia

Molecules

He: Detection

G-B: High resolution IR

The GAPS Programme at TNG LXXXI. The puzzle of the HeI absorption signal in the atmosphere of V1298 Tau b with GIARPS@TNG

2026, G. Guilluy, J. Orell-Miquel et al.

CO2: Detection H2O: Detection CO: Detection CH4: Detection SO2: Detection Molecular ratios: C/O, etc...: Detection

JWST-NIRSpec

A metal-poor atmosphere with a hot interior for a young sub-Neptune progenitor: JWST/NIRSpec transmission spectrum of V1298 Tau b

2025, Saugata Barat, Jean-Michel Désert et al.

H2O: Detection

HST WFC3

The metal-poor atmosphere of a Neptune/Sub-Neptune planet progenitor

2023, Saugata Barat, Jean-Michel Désert et al.

Strong water feature at 1.4 um

He: No detection

G-B: High resolution IR

Zodiacal Exoplanets in Time (ZEIT) XIII: Planet Orbits and Atmospheres in the V1298 Tau System, a Keystone in Studies of Early Planetary Evolution

2021, E. Gaidos, T. Hirano et al.

Pre and post transit spectra from different nights than transit. Tentative absorption.

He: No detection

G-B: High resolution IR

A Search for Planetary Metastable Helium Absorption in the V1298 Tau System

2021, Shreyas Vissapragada, Guðmundur Stefánsson et al.