Find Open Cluster Messier Object M23 Astronomy eBook DSS Photos, Images, Star Chart App & Deep Sky Map, Messier Marathon 8th Push

Categories: 5.0-5.9 , 8th Leg , Find Messier Objects Star Chart & Sky Map , M20 M21 M22 M23 M24 M25 M26 M27 M28 M29 , Sagittarius Deep Sky Objects , h- August Deep Sky Objects , open clusters


A set of 7  Reference Line Maps, star charts and DSS photos of M23.  These maps works well with red dot finders and green laser pointers.  The Reference Line Method method adapts well to both binoculars and telescopes.

How to Use Reference Line Maps to locate deep sky objects.

Confirmed by P. Messier Renaix     
Mapped by P. Messier Renaix     

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Proverbs are the daughters of experience. – Sierra Leone

You can't see the whole sky through a bamboo tube.
--Japanese

How vast these Orbs must be, and how inconsiderable this Earth.--Christian Huygens, 1689

The human search for the structure of the universe is more important than finding it.--Joseph Silk

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