An Etymological Dictionary of Astronomy and Astrophysics
English-French-Persian

فرهنگ ریشه شناختی اخترشناسی-اخترفیزیک

M. Heydari-Malayeri    -    Paris Observatory

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<< < B r bac Bal Bar Bar Bay Bec Ber bet bic bij bin bio Bir bla Bla blu blu bol Bo bou bra bre bri bub by > >>

Number of Results: 502
by default
  پت نابون   
pat nâbun

Fr.: par défaut   

Because of a lack of opposition or alternative.

→ by; → default.

B[e] star
  ستاره‌یِ B[e]   
setâre-ye B[e]

Fr.: étoile B[e]   

A → Be star with → forbidden lines in emission in its spectrum. B[e] stars show large → infrared excess due to → circumstellar dust emission. See also → supergiant B[e] star, → pre-main sequence B[e] star, → compact planetary nebula B[e] star, → symbiotic B[e] star, and → unclassified B[e] star.

B, referring to the spectral type; e for emission lines, brackets for distinction from Be; → star.

<< < B r bac Bal Bar Bar Bay Bec Ber bet bic bij bin bio Bir bla Bla blu blu bol Bo bou bra bre bri bub by > >>