Popular Astronomy, Volume 54Goodsell Observatory of Carleton College, 1946 |
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Page 397
... intensity scale on each photograph ( and preferably for each wave length to be studied ) so that an observed value of photographic darkening can be reduced to the equivalent light intensity which produced it . The number of methods ...
... intensity scale on each photograph ( and preferably for each wave length to be studied ) so that an observed value of photographic darkening can be reduced to the equivalent light intensity which produced it . The number of methods ...
Page 399
... intensity of the stellar radiation to that of the standard source at that wave length . Using the positive crater of a carbon arc as a comparison source , Plaskett determined by this wedge method the intensity distribution in the solar ...
... intensity of the stellar radiation to that of the standard source at that wave length . Using the positive crater of a carbon arc as a comparison source , Plaskett determined by this wedge method the intensity distribution in the solar ...
Page 404
... intensity microphotometer " requires two plates , or two halves of one plate , mounted on separate carriages , which are caused to move simul- taneously in the direction of dispersion with the motion so geared that the plates are kept ...
... intensity microphotometer " requires two plates , or two halves of one plate , mounted on separate carriages , which are caused to move simul- taneously in the direction of dispersion with the motion so geared that the plates are kept ...
Contents
Morgan H R Motions in the solar system | 2 |
Names of the sateillites The Samuel G Barton | 122 |
THE SEVENTYFOURTH MEETING OF THE AMERICAN ASTRO | 159 |
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AAVSO aerolite American appeared asteroids Astronomical Society atmosphere average brighter brightness California catalog cell color comet computed constant coördinate number corona Crater curve cycle determined diameter distance earth eclipse effective wave length energy ephemeris equation error exposure fall field filter galvanometer Harvard Harvard College Observatory instruments intensity Jupiter Kepler latitude light longitude lunar magnitude scale maximum means measurements meeting meteorites Meteoritic Falls meteors method moon motion Mount Wilson nebulae North Polar Sequence Nova objective observations Observatory obtained OCCULTATIONS VISIBLE orbit period photoelectric photographic photographic magnitudes photometer photometry Pickering planets plate Polar Sequence present prism Professor Puente-Ladron radiation region reported satellites Saturn September siderites solar spectral spectrophotometry spectrum standard Stebbins stellar sun-spot sunspot surface Table telescope tion U. S. Naval Observatory University Variable Star Venus visual visual magnitude Yerkes Observatory