Absolute magnitude from an absolute magnitude in a specific filter band to absolute bolometric magnitude, a bolometric correction is applied. For Solar System bodies that shine in reflected light, a different definition of absolute magnitude (H) is used, based on a standard reference distance of one astronomical unit. In stellar and galactic astronomy, the standard distance is 10 parsecs (about 32.616 light-years, 308.57 petameters or 308.57 trillion kilometres). A star at 10 parsecs has a parallax of 0.1″ (100 milliarcseconds). Galaxies (and other extended objects) are much larger than 10 parsecs, their light is radiated over an extended patch of sky, and
No. 26 Squadron (Finland) 26 Fiat G.50s, 1 Fokker D.XXI, 19 Brewster Buffaloes, 2 Hawker Hurricane Is, 3 Fokker C.Xs, 8 Polikarpov I-153s, and 1 Blackburn Ripon IIF. No. 26 Squadron (Finland) No. 26 Squadron ( or "LLv.26", from 3 May 1942 "Le.Lv.26"), renamed No. 26 Fighter Squadron (Finnish: "Hävittäjälentolaivue 26" or "HLe.Lv.26" on 14 February 1944) was a fighter squadron of the Finnish Air Force during World War II. The squadron was part of Flying Regiment 2 during the Winter War and Flying Regiment 3 during the Continuation War. The unit was mainly equipped with Fiat G.50 fighters and obtained 52 aerial victories