1. Spring-Summer,
2. Summer-Fall,
3. Fall-Winter,
4. Winter-Spring,
4.0-4.9,
Antiquity Deep Sky Objects,
Caldwell Objects & Herschel 400 DSOs,
Double Cluster in Perseus,
Perseus Deep Sky Objects,
a - January Deep Sky Objects,
b- February Deep Sky Objects,
l- December Deep Sky Objects,
open clusters
Downloadable Deep Sky Field Guides at Amazon (click book cover for info.)A set of 8 Reference Line Maps, star charts and DSS photos of the Double Cluster in Perseus, NGC 869 & NGC 884. This series of maps has been developed for use with the Reference Line Method. This method …
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