SAA 100 Best DSOs


Fix Up Your CG-5 !

AstronomyBoy.com
Search AstronomyBoy with Google



Getting Started



CG-5/LX70 Mount Fixes



SkyTee-2 Mount Rebuild



Solar Eclipse — 2017



SAA 100 Deep Sky List



Constellation Portraits



Barn Door Tracker



Comet Hale-Bopp



Homemade Eyepieces



EQ Mount Tutorial



Millennium Rant



Who Is Astronomy Boy?



Contact Astronomy Boy



Home


Corona Borealis – The Northern Crown
Corona Borealis - The Northern Crown
To see labels, touch the image with your mouse cursor.

Objects visible in this photo include:

  • M13, the Great Cluster in Hercules.

Location: Troy, New Hampshire
Camera: Olympus OM2n
Lens: 50mm f/1.8 lens at f/2.8
Film: Store brand ASA 400 color print film
Exposure: 7.5 minutes, tracked with motor-driven barn door camera mount.

«« more constellations