M106 and surroundings by Susy Ghia with ASTRA Telescope

Another series of images of Susy Ghia framing M106 and many others interesting objects around it, using ASTRA remote telescope #4 on March 11, 2020.

The full resolution processed image, you might think there are just two or three galaxies here… well look closer!

The final image is the processing of four light frames for a total of 15 minutes of exposure, I used IRIS for stacking, normalization and partly clean the gradient, than I created a flat frame from the light frame with paint.net and removed the dust and the ramaining gradient. With Astrometrica I did the data calibration than with Aperture Photometry Tool I extracted the list of stars and other sources.

The big M106 on the left, NGC4217 on the right and NGC 4248 on the top

The raw images was quiet dirty with lots of gradient of sky background, due to clouds during that night, I was able to clean the final photo and have something to work with.

I analyzed the image using Topcat and Aladin with the help of CDS Portal website. I did a cross match between the extracted sources and the Gaia DS2 catalog to exclude stellar object from the analysis, and I found many small galaxies that maybe are not the most pretty to look at on this image but I find interesting to know more about these apparent small objects that are actually massive and really far in the universe.

I will list some objects I found with basic information, since it gets more interesting if you know more about these objects, I will put also some images from the Sloan Digital Sky Survey to have some sort of visual comparison between them.

UGC 7325

Name: UGC 7325
Type: Galaxy
Coordinates: 12:17:28.89432 +46:49:39.7920
Redshift: 0.023450 +/- 0.000047
Velocity: 7000 Km/s
Distance from Earth: 100 Mpc / 330 Million Ly
Size: 130000 Ly

SIMBAD & NED

SDSS from CDS Portal

NGC 4218

Name: NGC 4218
Type: Galaxy
Coordinates: 12:15:46.55568 +48:07:53.0292
Redshift: 0.002435 +/- 0.000006
Distance from Earth: 40 Million Ly
Velocity: 1000 Km/s
Size: 20000 Ly
SDSS from CDS Portal

NGC 4220

Name: NGC 4220
Type: Galaxy
Coordinates: 12:16:11.76264 +47:52:56.8776
Redshift: 0.00306 [0.00001]
Size: 80000 Ly
Distance from Earth: 70 Million Ly
Velocity: 1000 Km/s

SIMBAD & NED

SDSS from CDS Portal

WISEA J121343.29+475700.0

Name: WISEA J121343.29+475700.0
Type: Galaxy
Coordinates: 12:13:43.54200 +47:56:59.4888
Redshift: 0.06473 +/- 0.00019
Distance from Earth: 1 Billion Ly
Size: 130000 Ly
Velocity: 20000 Km/s

SIMBAD & NED

SDSS from CDS Portal

NGC 4226

Name: NGC 4226
Type: Galaxy
Coordinates: 12:16:26.26 +47:01:32.5
Distance from Earth: 120 Mpc / 390 Million Ly
Size: 110000 Ly
Redshift: 0.024220 +/- 0.000033
Velocity: 7000 Km/s

SIMBAD & NED

SDSS from CDS Portal

LEDA 2304655

Name: LEDA 2304655
Type: Galaxy
Coordinates: 12:13:36.44 +47:48:04.0
Redshift: 0.02459 +/- 0.00008
Distance from Earth: 330 Million Ly
Size: 50000 Ly
Velocity: 7000 Km/s

SIMBAD & NED

SDSS from CDS Portal

UGC 07228

Name: UGC 07228
Type: Galaxy
Coordinates: 12h13m36.8s +46d29m38s
Redshift: 0.025244
Distance from Earth: 340 Million Ly
Velocity: 7500 Km/s
Size: 48 Kpc / 160000 Ly

NED

SDSS from CDS Portal

LEDA 2285316

Name: LEDA 2285316
Type: Galaxy
Coordinates: 12:21:14.80 +46:40:46.5
Redshift: 0.06325 +/- 0.00001
Distance from Earth: 900 Million Ly
Size: 150000 Ly
Velocity: 20000 Km/s

NED

SDSS from CDS Portal

2MASX J12214848+4636597

Name: 2MASX J12214848+4636597 
Coordinates: 12:21:48.62 +46:37:02.6
Type: Galaxy
Redshift: 0.024277 +/- 0.000102
Distance from Earth: 330 Million Ly
Size: 90000 Ly
Velociy: 7500 Km/s

SIMBAD & NED

SDSS from CDS Portal

WISEA J122323.53+463630.7 & WISEA J122323.22+463610.9

Name: WISEA J122323.53+463630.7 (LEDA 2284091)
Type: Galaxy (North)
Coordinates: 12:23:23.49 +46:36:30.9
Redshift: 0.07846 +/- 0.00002
Distance from Earth: 1.1 Billion Ly
Size: 240000 Ly
Velocity: 23000 Km/s

NED

Name: WISEA J122323.22+463610.9
Type: Galaxy (South)
Coordinates: 12h23m23.225s, +46d36m10.62s
Redshift: 0.06630 +/- 0.00019
Distance from Earth: 1 Billion Ly
Size: 160000 Ly
Velocity: 20000 Km/s

NED

SDSS from CDS Portal

NGC 4248

Name: NGC 4248
Type: Galaxy
Redshift: 0.001614
Coordinates: 12:17:48.53 +47:24:40.8
Distance from Earth: 20 Million Ly
Velocity: 500 Km/s
Size: 20000 Ly

SIMBAD & NED

SDSS from CDS Portal

NGC 4231 & NGC 4232

Name: NGC 4231 (North)
Type: Galaxy
Coordinates: 12:16:49.00 +47:26:21.2
Redshift: 0.024687 +/- 0.000150
Distance from Earth: 330 Million Ly
Velocity: 7500 Km/s
Size: 140000 Ly

SIMBAD & NED

Name: NGC 4232 (South)
Type: Galaxy
Coordinates: 12h16m49.0s +47d26m20s
Redshift: 0.024202
Distance from Earth: 330 Million Ly
Size: 150000 Ly
Velocity: 7500 Km/s

SIMBAD & NED

SDSS from CDS Portal

M106 (NGC 4258)

Name: M106 (NGC 4258)
Type: Galaxy
Coordinates: 12h18m57.5046s +47d18m14.303s
Redshift: 0.001494 +/- 0.000010
Distance from Earth: 20 Million Ly
Size: 150000 Ly
Velocity: 600 Km/s

NED & SIMBAD

SDSS from CDS Portal

NGC 4217

Name: NGC 4217
Type: Galaxy
Coordinates: 12h15m50.9s +47d05m30s
Redshift: 0.003426
Distance from Earth: 60 Million Ly
Size: 90000 Ly
Velocity: 1000 Km/s

NED & SIMBAD

SDSS from CDS Portal

Link to Google Drive with original files

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