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
Miles Davis, Volume 3 Miles Davis, Volume 3 Miles Davis, Vol. 3 (BLP 5040) is a 1954 10 inch LP album by Miles Davis. It consists of the third and last of three sessions recorded for Blue Note Records. Several years later, Davis would once again record at Blue Note, but as a sideman on Cannonball Adderley's "Somethin' Else" (BLP 1595). The six tracks were recorded at Rudy Van Gelder's Studio, Hackensack, New Jersey, on March 6, 1954 For the session he used exactly the same quartet he would again record with seven days later for side 2 of the Miles Davis Quartet LP