ExoAtmospheres
IAC community database for exoplanet atmospheric observations
V 1298 Tau c
| Planet status | Confirmed |
|---|---|
| Planet type | Hot Neptune |
| Period | 8.2479 d |
| Mass | 0.0872 MJ 27.71216 M⊕ |
| Radius | 0.4389 RJ 4.91568 R⊕ |
| Semi major axis | 0.0825 AU |
| Star name | V 1298 Tau |
| Star distance | 108.5 pc |
| Star teff | 4970 K |
| Star radius | 1.305 R☉ |
| Temperature (calculated) | 968 K |
| V | 10.1 mag |
| J | N/A |
| K | N/A |
| Alternate names | |
| Exoplanet Encyclopaedia |  |
Molecules
Molecular ratios: C/O, etc...: Detection
|
HST WFC3 | First Comparative Exoplanetology Within a Transiting Multi-planet System: Comparing the atmospheres of V1298 Tau b and c2024, Saugata Barat, Jean-Michel Désert et al. |
Comparison between planets b and c |
He: Upper limit
|
G-B: High resolution IR | Non-Detections of Helium in the Young Sub-Jovian Planets K2-100b, HD 63433b, & V1298 Tau c2024, Munazza K. Alam, James Kirk et al. |
New He I upper limit with NIRSPEC/Keck of 1.13% / 8.49 mA |
H: Upper limit
|
G-B: High resolution visible | The MOPYS project: A survey of 70 planets in search of extended He I and H atmospheres. No evidence of enhanced evaporation in young planets2024, J. Orell-Miquel, F. Murgas et al. |
|
He: Upper limit
|
G-B: High resolution IR | The MOPYS project: A survey of 70 planets in search of extended He I and H atmospheres. No evidence of enhanced evaporation in young planets2024, J. Orell-Miquel, F. Murgas et al. |
|
C+: Upper limit Si+: Upper limit
|
HST-COS | HST Far-ultraviolet Transit Observations of Two Neptune Progenitors Younger than 30 Myr2024, Feinstein, Adina D., France, Kevin et al. |
Upper limits for C II, C III, Si II, Si III |
H: No detection
|
G-B: High resolution visible | H-Alpha Variability of V1298 Tau c2021, Everett Schlawin, Ilya Ilyin et al. |
|
He: No detection
|
G-B: High resolution IR | A Search for Planetary Metastable Helium Absorption in the V1298 Tau System2021, Shreyas Vissapragada, Guðmundur Stefánsson et al. |
|
H: Upper limit
|
G-B: High resolution visible | H-alpha and Ca II Infrared Triplet Variations During a Transit of the 23 Myr Planet V1298 Tau c2021, Adina D. Feinstein, Benjamin T. Montet et al. |
Ha variability, not clear if associated to the transiting planet |
H2O: Detection Molecular ratios: C/O, etc...: Detection
|
JWST-NIRISS | Astro-ph arXiv:2606.03740 |