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  1. ...184.462 + 1.9141 x -0.9892 + 0.020 x 0.2903 = 182.574 (9) find alpha the right ascension of the sun from this formula: alpha = arctan (tan(lambda) x cos(epsilon)) in same quadrant...

  2. ... + DL; // true longitude, degree convert ecliptic longitude L to right ascension RA and declination delta X = cos(L); Y = cos(eps)*sin...

    分類:社會及文化 > 語言 2007年11月22日

  3. ...10.7 Constellation 天狼星 Canis Major Right ascension 06h 45m 08.9173s Declination −16 42′ 58.017&Prime...

  4. ...past the local meridian as the earth spins. You can use an object's right ascension and the local sidereal time to determine when it will cross your local meridian, or...

  5. ... 7.25° [54] (to the ecliptic) 67.23° (to the galactic plane) Right ascension of North pole[57] 286.13° 19 h 4 min 30 s Declination of...

  6. ...at the equator) Axial tilt 119.59° (to orbit) 112.78° (to the ecliptic) Right ascension of North pole 133.045±0.02° (8 h 52 min 11 s) [4] Declination...

  7. ...tilt relative to Earth's equator) and are separated by 60° right ascension of the ascending node (angle along the equator from a reference point to the orbit...

    分類:科學及數學 > 天氣 2007年04月08日