Silver Dollar Galaxy

Also known as the Sculptor Galaxy, NGC 253.

A member of the Sculptor Group, it is slightly smaller than the Milky Way and is visible in binoculars

Object Details:

NGC  253, Caldwell 65.
Visual magnitude: +7.1.
Apparent diameter: 27 x 4.6  arc-min. (about 0.8 LD).
Actual diameter: 94,000 light years.
Distance: 12 million light years.

Image:

Exposure: 35 x 1 min, ISO 2000.
Date: 2017-09-17.
Location: Leumeah, NSW.
Sky: suburban, clear.
Processing: Canon DPP, Deep Sky Stacker and GIMP.
Cropping: yes.

Gear:
Imaging telescope: Skywatcher Esprit 120ED Super APO triplet refractor.
Focal length: 840 mm, focal ratio: f/7.
Imaging camera: Canon EOS 60D.
Guiding telescope: Orion ShortTube 80mm Achromatic doublet refractor.
Focal length: 400 mm, focal ratio: f/5.
Guiding camera: Orion StarShoot camera.
Guiding control software: PHD2.
Telescope mount: SkyWatcher EQ6-R.
Polar aligning: QHYCCD PoleMaster.
Field flattener: yes; filter: no.
My gear.

Related Links:

My Galaxy Portfolio


Image © R.Powell


 

Your say.......

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Google photo

You are commenting using your Google account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s