T Tauri star(Noun)
a class of young visible stars having optical variability; they are often surrounded by a protoplanetary disc
Origin: named after the prototype star of its class, T Tauri
T Tauri star
T Tauri stars are a class of variable stars named after their prototype – T Tauri. They are found near molecular clouds and identified by their optical variability and strong chromospheric lines. T Tauri stars are pre-main sequence stars in the process of contracting to the main sequence along the Hayashi track, a luminosity-temperature relationship obeyed by infant stars of less than 3 solar masses in the pre-main-sequence phase of stellar evolution. It ends when a star of 0.5 solar masses develops a radiative zone, or when a larger star commences nuclear fusion on the main sequence.
The numerical value of t tauri star in Chaldean Numerology is: 1
The numerical value of t tauri star in Pythagorean Numerology is: 3
Images & Illustrations of t tauri star
Find a translation for the t tauri star definition in other languages:
Select another language:
Discuss these t tauri star definitions with the community:
Word of the Day
Would you like us to send you a FREE new word definition delivered to your inbox daily?
Use the citation below to add this definition to your bibliography:
"t tauri star." Definitions.net. STANDS4 LLC, 2017. Web. 20 Oct. 2017. <http://www.definitions.net/definition/t tauri star>.