Publisher's Synopsis
Excerpt from Catalogue of the Mean Declination of 2018 Stars Between 0h to 2h and 12h to 24h Right Ascension, and 10 and 70 of North Declination, for January 1, 1875
A catalogue of the mean declinations (with accompanying approximate right ascensions) of 981 stars, between 30° and 60° of north declination, was computed by myself for the use of the United States Lake Survey, under the direction of Maj. And t. Brig. Gen. C. B. Comstock, and published by the far Depart ment in 1873. This has done good service in latitude work, but the limits of declination were found too narrow for the Operations of your Office in more southern latitudes. I have, therefore, computed similar posi tions for new stars, mostly in the zone of north declination from 10° to 30° and 60° to so that the present catalogue includes all stars fit for our present purpose between 10° and 70° of declination in the right ascensions (011 to 2b and 12h to Oftenest used for latitude work.
A revision of the previous catalogue by the introduction of many Observations first published since its computation, and of a few not then within my reach, has been incorporated with the present one. It soon became manifest that the new region now included contains a larger proportion of well-determined stars, owing, I fancy, to the inconvenience of observing near the zenith with the usual fixed instruments.
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