Hemisphere:  Northern  ·  Constellation: Hercules (Her)  ·  Contains:  Great Cluster in Hercules  ·  M 13  ·  NGC 6205
Great Hercules Globular Cluster, 


            Don Curry
Great Hercules Globular Cluster
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Great Hercules Globular Cluster

Technical card

Imaging telescopes or lenses: Starizona Hyperstar III  ·  Celestron C-11

Imaging cameras: Canon T2i Full Spectrum

Mounts: Losmandy GM-11 GEMINI II Losmandy G11 Gemini II

Software: PixInsight  ·  Photoshop CS 6  ·  Binary Rivers Backyard EOS  ·  Cyanogen Maxim DL5 ver. 5.24

Dates:Sept. 10, 2014

Frames: 1x45"

Integration: 0.0 hours

Avg. Moon age: 16.40 days

Avg. Moon phase: 97.01%

Basic astrometry details

Astrometry.net job: 362998

RA center: 16h 41' 41"

DEC center: +36° 27' 39"

Pixel scale: 0.796 arcsec/pixel

Orientation: -114.697 degrees

Field radius: 0.571 degrees

Resolution: 4168x3054


This globular is in the Constellation Hercules and has 300,000 stars in it. This image is an enlargement of it and shows the various different types of stars in the forming region as you can see blue young stars forming as well as yellow stars and white stars in the cluster.
This is from a single 45 second image at ISO 800 and is my first image taken with my new RA worm gear installed from Ovision. The improvement in round stars is very noticeable on my mount and made a significant improvement on my unguided imaging.
Double click on the image and then you will see an enlarged image of M13 and then try zooming in with your mouse and then you will be able to see the individual star colors and star detail.


Sky plot

Sky plot


Great Hercules Globular Cluster, 


            Don Curry

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