Annual report of the Board of Regents of the Smithsonian Institution . of the rightorder of magnitude. Above all, it must not be forgotten that practi-cally all the conclusions formulated depend on a study of but twocharacteristics of the stars—the numbers seen in different directionsin the sky and the totals down to different limits of brightness. Thisrestriction accounts in part for the lack of detail in the picture;at the same time it may mean that results which now seem wellestablished will require modification and readjustment when otherstellar characteristics have been intensively studie
Annual report of the Board of Regents of the Smithsonian Institution . of the rightorder of magnitude. Above all, it must not be forgotten that practi-cally all the conclusions formulated depend on a study of but twocharacteristics of the stars—the numbers seen in different directionsin the sky and the totals down to different limits of brightness. Thisrestriction accounts in part for the lack of detail in the picture;at the same time it may mean that results which now seem wellestablished will require modification and readjustment when otherstellar characteristics have been intensively studied. Smithsonian Report. 1929.—Scares Plate 1 •? ??.?. ?\ . • ???., ?. •• ? •...?????. *, ?? ? •? • « ?.?;.., Photographs with Increasing length of Exposure of a small Field ABOUT V Aurigae Illustrating the rapid increase in numbers of stars with decreasing brightness. The faintest starsshown are approximately of the twelfth, fifteenth, eighteenth, and twentieth magnitude. Smithsonian Report, 1929.—Scares. 1. SELECTED AREA 56, 2. SELECTED AREA 40, 80° Distant from the Milky wayIN THE Milky Way Itself Photographs of two fields of the same size, both showing stars to the eighteenth photographs illustrate the great concentration of faint stars in low galactic latitudes. Smithsonian Report. 1929.—Scares Plate 3
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