Thursday, June 29, 2017


Messier 23 (NGC 6494) is a bright, large open star cluster located in the constellation Sagittarius.
It approximately 2,150 light years from Earth and has an apparent magnitude of 6.9. The cluster has a radius of 15 to 20 light years and contains 176 confirmed members (source: Messier Objects).

This is one of the few Messier Objects that I have left that I can actually image from my yard. This object, being in Sagittarius, is in the direction of the center of the Milky Way and, therefore, has lots of gas, dust, nebulosity, and stars. The cloudiness appears faintly in my image.

This brings me up to 93 Messier Objects captured so far...

Location: Happy Frog Observatory, Monroe, CT
Date: 6-21-17
Camera: Canon EOS Rebel T3i(a), Backyard EOS
Telescope: Orion ED80 80mm f/7.5 Apochromatic Refractor Telescope
Barlow: None
Focal Length: 600mm
Focal Reducer: Orion 0.8x Focal Reducer for Refractor Telescopes
Mount: Orion Sirius EQ-G GoTo Telescope Mount
Filter: Astrodon UV/IR
Autoguiding: QHY-5L-II-M attached to an Agena 50mm Guide Scope with Helical Focuser
Exposure: 19 x 60s
ISO: 1600
Temp: 18 C
Post Processing: Deep Sky Stacker, Photoshop, Lightroom, Gradient Exterminator, Astronomy Tools, StarTools.

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