Astrophysics (Index)About

TW Hydrae

(TW Hya)
(nearest T-Tauri star)

TW Hydrae (TW Hya) is the nearest T-Tauri star to the Sun, and is the star for which TW Hydrae association is named. It has a face-on protoplanetary disk, that has a gap suggesting a likely extra-solar planet, which would be TW Hydrae b, with a mass of up to about 1.5 Neptune masses, i.e., roughly 25 Earth masses. (A discounted study had theorized a more massive planet based on other arguments.) Characteristics:


(star,TTS,PMS star,variable star,exoplanets)
Further reading:
https://en.wikipedia.org/wiki/TW_Hydrae
https://en.wikipedia.org/wiki/TW_Hydrae_b
https://ui.adsabs.harvard.edu/abs/2016ApJ...829L..35T/abstract
RedshiftParsecs
/Distance
Lightyears
/Lookback Years
  
~060pc196lyTW Hydrae
Coordinates:TW Hya
J110151.9054-344217.0316

Referenced by pages:
K-type star (K)
TW Hydrae association (TWA)

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