The raw images have been shot by Susy Ghia with ASTRA remote telescope, a 90cm f/4.5 reflector with camera SBIG ST-8300M.
The processed image is the composition of 2 frames with exposition of 900 seconds per frame. I used IRIS for registration and stacking, then I used Lightroom CC to stretch the levels and make it more pleasant to look at. I did data reduction using Astrometrica and APT to extract a source list, then I analyzed the luminance frame using TOPCAT and Aladin.
The Pinwheel Galaxy (also known as Messier 101, M101 or NGC 5457) is a face-on spiral galaxy distanced 21 million light-years (six megaparsecs) away from Earth in the constellation Ursa Major
Wikipedia
This is a link to Google Drive to download the raw and processed images if they may be of interest to someone.
UGC 08882
Name: UGC 08882 Coordinates: 13:57:14.70 +54:06:03.2 Type: Galaxy Redshift: 0.001146 Distance from Earth: 21 Million Ly Velocity: 400 Km/s Size: 9000 Ly SIMBAD & NED
2MASX J13593168+5345098
Name: 2MASX J13593168+5345098 Coordinates: 13:59:31.79 +53:45:06.8 Type: Galaxy Redshift: 0.110354 +/- 0.000138 Distance from Earth: 1.6 Billion Ly Velocity: 33000 Km/s Size: 160000 Ly SIMBAD & NED
WISEA J135919.04+550757.1
Name: WISEA J135919.04+550757.1 Coordinates: 13:59:19.02 +55:07:55.8 Type: Galaxy Redshift: 0.029234 +/- 0.000079 Distance from Earth: 400 Million Ly Velocity: 9000 Km/s Size: 60000 Ly SIMBAD & NED
2MASX J14103050+5449274
Name: 2MASX J14103050+5449274 Coordinates: 14:10:30.43 +54:49:29.2 Type: Galaxy Redshift: 0.040693 +/- 0.000183 Distance from Earth: 560 Million Ly Velocity: 12000 Km/s Size: 160000 Ly SIMBAD & NED
NGC 5474
Name: NGC 5474 Coordinates: 14:05:01.51 +53:39:43.7 Type: Galaxy Redshift: 0.000911 +/- 0.000030 Distance from Earth: 18 Million Ly Velocity: 270 km/s Size: 28000 Ly (3.6' visible source on the image) SIMBAD & NED
UGC 8837
Name: UGC 8837 Coordinates: 13:54:45.51 +53:54:13.2 Type: Galaxy Redshift: 0.000480 +/- 0.000010 Distance from Earth: 12 Million Ly Velocity: 150 km/s Size: 25000 Ly (1' x 2.6' visible source on the image) NED
MCG +09-23-047
Name: MCG +09-23-047 Coordinates: 14:10:01.41 +54:52:54.2 Redshift: 0.042296 +/- 0.000087 Distance from Earth: 590 Million Ly Velocity: 12000 Km/s Size: 230000 Ly NED
MCG+09-23-045
Name: MCG+09-23-045 Coordinates: 14:09:52.88 +54:55:37.1 Redshift: 0.043315 +/- 0.000098 Distance from Earth: 600 Million Ly Velocity: 12000 km/s Size: 100000 Ly NED
2MFGC 11494
Name: 2MFGC 11494 Coordinates: 14:10:16.52 +55:05:43.8 Redshift: 0.036314 +/- 0.000163 Distance from Earth: 500 Million Ly Velocity: 10000 Km/s Size: 140000 Ly NED
Coordinates: 14:09:05.12 +55:09:06.5 Distance from Earth: 1.9 Billion Ly South-right http://skyserver.sdss.org/dr12/en/tools/explore/summary.aspx?id=1237661388141232252 North-left http://skyserver.sdss.org/dr12/en/tools/explore/summary.aspx?id=1237661388141232253
NGC 5486
Name: NGC 5486 Coordinates: 14:07:24.93 +55:06:11.5 Type: Galaxy Redshift: 0.004637 Distance from Earth: 70 Million Ly Velocity: 1500 km/s Size: 60000 Ly NED
NGC 5485
Name: NGC 5485 Coordinates: 14:07:11.15 +55:00:05.7 Type: Galaxy Redshift: 0.006428 +/- 0.000017 Distance from Earth: 90 Million Ly Velocity: 2000 km/s Size: 80000 Ly SIMBAD & NED
NGC 5473
Name: NGC 5473 Coordinates: 14:04:43.23 +54:53:33.5 Redshift: 0.006745 +/- 0.000017 Distance from Earth: 100 Million Ly Velocity: 2000 km/s Size: 60000 Ly NED
NGC 5484
Name: NGC 5484 Coordinates: 14:06:48.01 +55:01:48.7 Redshift: 0.006771 Distance from Earth: 100 Million Ly Velocity: 2000 km/s Size: 21000 Ly SIMBAD & NED
