An Etymological Dictionary of Astronomy and Astrophysics

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فرهنگ ریشه‌شناختی اخترشناسی-اخترفیزیک

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25 Orionis
  ۲۵-شکارگر، ۲۵-اریون  
25-Šekârgar, 25-Oryon
Fr.: 25 Orionis  

A blue star of → apparent visual magnitude 4.96 lying in the → Orion constellation. It has other designations, including: ψ1 Orionis, BD+01 1005, HR 1789, and HIP 25302. 25 Ori is a → main sequence star of → spectral type B1 V.

It lies at a distance of 1,040 → light-years and has a → luminosity of 9,300 MSun, a radius of 5.5 Rsun, and a mass of about 10 Msun.

25 Ori is in fact a → <i><a class="linkVoir" href="/terms/be-star/">Be star</a></i>.