Photographs of Nebulæ and Clusters, Made with the Crossley Reflector

+----------------------------------------------------------------------+ |No.|[Greek: a]|Precession|[Greek: d]|Precession| Description. | | | 1900.0 | | 1900.0 | | | |----------...

The use of the large mirror for purposes of adjustment was finally given up, and the axis was adjusted by observations of _Polaris_ with the long finder, in the usual manner. In...

Produced by Bryan Ness and the Online Distributed Proofreading Team at http://www.pgdp.net (This file was produced from images generously made available by The Internet Archive/...

Now, in the Crossley reflector, the upper edge of the plate and the guiding eyepiece are just about 3-2/3 inches, or 1 deg., apart. If _e_ is given, the above formula serves to...

+----------------------------------------------------------------------+ |No.|[Greek: a]|Precession|[Greek: d]|Precession| Description. | | | 1900.0 | | 1900.0 | | | +----------...

+----------------------------------------------------------------------+ |No.|[Greek: a]|Precession|[Greek: d]|Precession| Description. | | | 1900.0 | | 1900.0 | | | |----------...

+----------------------------------------------------------------------+ |N.G.C. |[Greek: a]|Precession|[Greek: d]|Precession| Remarks. | | | 1900.0 | | 1900.0 | | | |----------...