Celestial hemisphere:  Northern  ·  Constellation: Cygnus (Cyg)  ·  Contains:  25 Cyg  ·  27 b01 Cyg  ·  28 b02 Cyg  ·  29 b03 Cyg  ·  30 Vul  ·  31 Vul  ·  32 Vul  ·  34 P Cyg  ·  35 Cyg  ·  36 Cyg  ·  37 gam Cyg  ·  39 Cyg  ·  40 Cyg  ·  41 Cyg  ·  42 Cyg  ·  44 Cyg  ·  47 Cyg  ·  48 Cyg  ·  49 Cyg  ·  52 Cyg  ·  53 eps Cyg  ·  54 lam Cyg  ·  B145  ·  B146  ·  B147  ·  B343  ·  B344  ·  B347  ·  B348  ·  BW Vul  ·  And 620 more.
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The Cygnus Loop in Sadr  - A 12 Panel Mosaic -Summer/Fall 2021, 


            Matt Harbison
Powered byPixInsight

The Cygnus Loop in Sadr - A 12 Panel Mosaic -Summer/Fall 2021

Getting plate-solving status, please wait...
The Cygnus Loop in Sadr  - A 12 Panel Mosaic -Summer/Fall 2021, 


            Matt Harbison
Powered byPixInsight

The Cygnus Loop in Sadr - A 12 Panel Mosaic -Summer/Fall 2021

Acquisition details

July 9, 2021 ·  Aug. 12, 2021 ·  Sept. 16, 2021 ·  Oct. 15, 2021 ·  Nov. 12, 2021
Chroma Blue 50mm: 1440×60(24h) -5°C bin 1×1
Chroma Green 50mm: 1440×60(24h) -5°C bin 1×1
Chroma Ha 3nm 50mm: 96×1800(48h) -5°C bin 1×1
Chroma OIII 3nm 50mm: 96×1800(48h) -5°C bin 1×1
Chroma Red 50mm: 1440×60(24h) -5°C bin 1×1
Avg. Moon age:
12.28 days
Avg. Moon phase:
Bortle Dark-Sky Scale:

RA center: 20h40m32s.35

DEC center: +34°0317.6

Pixel scale: 6.556 arcsec/pixel

Orientation: -127.504 degrees

Field radius: 10.267 degrees

WCS transformation: thin plate spline

More info:Open 

Resolution: 10000x5277

File size: 13.3 MB

Locations: Marathon Motel, Marathon Motel, TX, United States; MaRIO, Marathon, Texas, None

Data source: Amateur hosting facility

Remote source: Marathon Remote Imaging Observatory (MaRIO)


Personal Note:
Hopefully I’ll have it on my website soon so you can make the jump and see an interactive and solved 30k version. While still not full resolution, it goes a long way to highlight the regions treasure trove of amazing resources.

This is the first true mosaic out of my new Takahashi System in Marathon Texas. A few hurdles before truly grasping this wide-field monster I am beginning to understand it's quirks. The field is truly impressive. With massive amounts of star color and span, this telescope chews threw these dark West Texas Skies.

I hope the image brings the same sense of awe and amazement I feel. I am very cognizant of my fortune to be in the MaRIO observatory so I work very hard to share my work with others. I hope to finish out the entire constellation of Cygnus over the next two years.

About the Image:

A 12 Panel Mosaic of the Cygnus Loop & Sadr Region

Deep inside the Constellation of Cygnus lies a region of chaos. Wrought with expanding gasses and supernova remnants, the Sadr region of Cygnus reveals the active nature of our galaxy.

Captured from my remote telescope in Marathon Texas, this image reveals the Hydrogen, Oxygen, and rich star life and color present in the area. The added effect of star removal helps to illuminate the moving gasses and the ever-changing nature of the area. Imaging this area ever night since July, I’ve managed to complete almost 200 hours. The data is sublime. I will upload the hydrogen and RGB masters for inspection soon.

After I finish a project, I sit back, take a long look and think to myself… every star, could be somebody’s Sun.

Tech Details:

Equipment and technique used to acquire the data that makes up the image.

Integration per panel:

Ha- 8 x 1800s

O3- 8 x 1800s

Luminance- 180 x 60s

Red- 180 x 60s

Green- 180 x 60s

Blue- 180 x 60s

20 Darks, 20 Flats, & 20 Bias frames

Equipment Used:

Takahashi FSQ 106 @ f3.6 (645 Reducer)

QHY 600 Monochrome Camera w/ 7pos Filter Wheel

Astro-Physics Mach 1 GTO

Moonlite NiteCrawler

ZWO 290mm Guidecamera, Orion 60mm Guide scope

Pegasus Ultimate Power Box 2

Integration, Calibration, and Processing:

Images were processed inside Pixinsight with Weighted Batch Pre Processing. Once calibrated masters were created, I used Mosaic by Coordinates to begin the Photometric Mosaic process. Each panel was cropped slightly, and trimmed with the trimming tool and then added to the master created with Gradient Merge Mosaic. Once each of the 12 panels were registered to a master mosaic, I used the Photometric Mosaic process to fine tune the image.

Additionally, I processed the image in APP using the mosaic tools. While it also produced an accurate mosaic, merge lines were visible. I attribute this NOT to the program, but my overlap of 7%. I got stingy with the real estate. Going forward, I will overlap to the suggested 15%.

Presentation on my website via the DZItools for web.
Final edit of 12 panels complete with DZI.


Sky plot

Sky plot


The Cygnus Loop in Sadr  - A 12 Panel Mosaic -Summer/Fall 2021, 


            Matt Harbison