The images have been shot by Susy Ghia using ASTRA Remote Telescope #4, a refractor 90mm f/4.5 with SBIG ST-8300M.
This is the result of four images for a total exposure of 35 minutes, I used IRIS for registering and stacking the images, also I applied the Asinh filter to stretch the image to increase the details, than with Lightroom CC I increased the sharpness and reduced the noise a little bit to make it pretty.
Messier 100 (also known as NGC 4321) is a grand design intermediate spiral galaxy located within the southern part of constellation Coma Berenices. It is one of the brightest and largest galaxies in the Virgo Cluster, located approximately 55 million light-years distant from Earth and has a diameter of 107,000 light years, roughly 60% the size of the Milky Way.
Wikipedia
You can download all the raw images and processed ones following the link to Google Drive
I analyzed the luminance photo using Astrometrica, APT, Topcat, Aladin and the website CDS Portal; below I post some interesting objects I found through the image, the information are from the CDS Portal but I rounded this values to make them easier and more practical to remember.
WISEA J122607.79+164437.0
Name: WISEA J122607.79+164437.0 Coordinates: 12:26:07.78 +16:44:40.7 Redshift: 0.04526 Distance from Earth: 700 Million Ly Velocity: 13000 Km/s Size: 70000 Ly
LEDA 40817
Name: LEDA 40817 Type: Galaxy Coordinates: 12:27:16.40 +16:30:00.0 Redshift: 0.021 Distance from Earth: 400 Million Ly
LEDA 040835
Name: LEDA 040835 Coordinates: 12:27:20.64 +16:25:42.8 Redshift: 0.002588 Distance from Earth: 15 Million Ly Velocity: 800 Km/s Size: 14000 Ly
IC 0792
Name: IC 0792 Type: Galaxy Coordinates: 12:27:08.74 +16:19:32.6 Redshift: 0.020754 Distance from Earth: 300 Million Ly Velocity: 6000 Km/s Size: 150000 Ly
LEDA 213991
Name: LEDA 213991 Type: G Coordinates: 12:27:02.65 +16:20:10.7 Redshift: 0.045028 Distance from Earth: 700 Million Ly Velocity: 13000 Km/s Size: 60000 Ly
SDSS J122627.83+161237.8
Name: SDSS J122627.83+161237.8 Coordinates: 12:26:27.60 +16:12:39.7 Redshift: 0.114 Distance from Earth: 1.7 Billion Ly
IC 3369
Name: IC 3369 Coordinates: 12:27:16.78 +16:01:28.7 Redshift: 0.00576 Distance from Earth: 90 Million Ly Velocity: 1700 Km/s Size: 15000 Ly
WISEA J122717.51+160214.6
Name: WISEA J122717.51+160214.6 Type: G Coordinates: 12:27:17.53 +16:02:15.3 Redshift: 0.23103 +/- 0.00004 Distance from Earth: 3.3 Billion Ly Velocity: 70000 Km/s Size: 230000 Ly NED
MCG+03-32-042
Type: Galaxy Coordinates: 12:27:13.02 +15:58:46.9 Redshift: 0.066872 Distance from Earth: 1 Billion Ly Velocity: 20000 Km/s Size: 150000 Ly SIMBAD & NED
IC 3365
Name: IC 3365 Coordinates: 12:27:11.57 +15:53:51.1 Redshift: 0.007839 Distance from Earth: 120 Million Ly Velocity: 2000 Km/s Size: 40000 Ly SIMBAD & NED
WISEA J122707.20+154706.2
Name: WISEA J122707.20+154706.2 Coordinates: 12:27:06.93 +15:47:08.4 Redshift: 0.094 ± 0.0292 SDSS & NED
Three galaxies from SDSS catalogue
Name: SDSS J122716.32+153446.0 (1) Coordinates: 12:27:16.20 +15:34:44.1 Redshift: 0.219 ± 0.0114 SDSS
Name: SDSS J122714.06+153404.6 (2) Coordinates: 12:27:13.93 +15:34:05.6 SDSS
Name: SDSS J122711.39+153452.7 (3) Coordinates: 12:27:11.27 +15:34:52.0 SDSS
Two galaxies from SDSS catalogue
Name: SDSS J122646.73+153850.7 (1) Coordinates: 12:26:46.57 +15:38:48.9 Redshift: 0.072 ± 0.0229 SDSS
Name: SDSS J122640.51+153831.7 (2) Coordinates: 12:26:40.32 +15:38:32.2 SDSS
Three galaxies from SDSS catalogue
Name: SDSS J122548.80+152706.9 (1) Coordinates: 12:25:48.62 +15:27:06.9 SDSS
Name: SDSS J122547.63+152713.4 (2) Coordinates: 12:25:47.48 +15:27:12.3 Redshift: 0.11844 +/- 0.00014 Distance from Earth: 1.7 Billion Ly Velocity: 35000 Km/s Size: 100000 Ly SDSS & NED
Name: SDSS J122547.76+152645.8 (3) Coordinates: 12:25:47.68 +15:26:44.9 Redshift: 0.113 ± 0.0285 SDSS
WISEA J122551.51+152312.0
Name: WISEA J122551.51+152312.0 (SDSS J122551.51+152312.0) Coordinates: 12:25:51.16 +15:23:11.6 Redshift: 0.08147 +/- 0.00015 Distance from Earth: 1.2 Billion Ly Velocity: 25000 Km/s Size: 80000 Ly SDSS & NED
SDSS J122235.33+162054.8
Name: SDSS J122235.33+162054.8 Coordinates: 12:22:34.76 +16:20:55.6 SDSS
NGC 4350
Name: NGC 4350 Type: Galaxy Coordinates: 12:23:57.86 +16:41:37.4 Redshift: 0.00412 Distance from Earth: 70 Million Ly Velocity: 1200 Km/s Size: 50000 Ly NED
NGC 4421
Type: Galaxy Coordinates: 12:27:02.53 +15:27:41.4 Redshift: 0.005347 Distance from Earth: 80 Million Ly Velocity: 1600 Km/s Size: 40000 Ly NED & SIMBAD
NGC 4405
Name: NGC 4405 Coordinates: 12:26:07.10 +16:10:51.6 Redshift: 0.005827 Distance from Earth: 90 Million Ly Velocity: 1700 Km/s Size: 40000 Ly NED & SIMBAD
WISEA J122404.55+154433.7
Name: WISEA J122404.55+154433.7 Coordinates: 12:24:04.51 +15:44:32.1 Redshift: 0.119643 Distance from Earth: 1.8 Million Ly Velocity: 30000 Km/s Size: 160000 Ly NED
NGC 4239 & WISEA J121714.24+163228.9
Name: NGC 4239 Coordinates:12:17:14.94 +16:31:52.7 Redshift: 0.00314 Distance from Earth: 60 Million Ly Velocity: 1000 Km/s Size: 30000 Ly NED
Name: WISEA J121714.24+163228.9 Coordinates: 12:17:14.39 +16:32:29.9 Redshift: 0.094 ± 0.0184 NED & SDSS
