Globular Cluster ... M 92
(Click on Picture for larger view)

This cluster of about 250,000 stars is about 26,700 light-years from earth. In the sky, it is located in the constellation Hercules, not too distant (apparent position) of the great globular cluster M13 in the same constellation. This cluster is very old being roughly 12 billion years of age (The age of the universe is 13.2 billion years and our sun being about 4.6 billion years). It is high in the NE around 11 pm in mid May.

I took this image on the night of May 19, 2020 around 11 pm. The image is composed of 9 x 180sec subframes stacked in Deep SkyStacker resulting in a 27 minutes exposure.

That 'Techy' Stuf
Telescope: 11" Celestron Edge HD at f/7
Mount: Celestron CGX
Mount setting and alignment via Celestron PWI software
Rig to Indoor Computer Connection: USB 2 196 feet Extender via cat 6 cable
System Alignment: Celestron StarSense
Camera: Altair Hypercam 294c Pro TEC
Binning: 1x1
Sensor Temp: -15°C (5°F)
Filter: None & Altair Quad-narrow band
Settings: Gain: 450(No filter) 1500(filter)
58 Sub-Frames at 300sec ea
Calibration Frames: 24 Darks, 50 Flats for each set
Guiding: Orion Digital StarShoot Mono camera & 60mm Altair Scope
Guiding Software: PHD2 V2.6.7
Capture Software: SharpCap Pro
Stacked in Deep Sky Stacker
Post processing in PixInsight & Photoshop CC
Focus Controller: Celestron Auto Focuser
Light Pollution: Bortle zone 4.5 (Barely can see the Milky Way)
Sky Condition: 8 (0-10 with 10 the clearest possible)
Lunar Interference: None
Temperature: 72°F (22°C)
Date: Mary 19, 2020
Location: My Backyard, Savannah, GA

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