Hemisphere:  Southern  ·  Constellation: Sagittarius (Sgr)  ·  Contains:  Hourglass nebula  ·  IC 1274  ·  IC 1275  ·  IC 4685  ·  Lagoon nebula  ·  M 20  ·  M 21  ·  M 8  ·  NGC 6514  ·  NGC 6523  ·  NGC 6526  ·  NGC 6530  ·  NGC 6531  ·  NGC 6546  ·  NGC 6559  ·  The star 11Sgr  ·  The star 4Sgr  ·  The star 60Sgr  ·  The star 62Sgr  ·  The star 7Sgr  ·  The star 9Sgr  ·  Trifid nebula
The Fantastic Four Mosaic - M8, M20, M21, IC4685 and others, 



    
        

            Delberson
The Fantastic Four Mosaic - M8, M20, M21, IC4685 and others
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The Fantastic Four Mosaic - M8, M20, M21, IC4685 and others

Equipment

Imaging Telescopes Or Lenses
Orion (ED80)
Imaging Cameras
Canon 450D mod.
Mounts
Sky-Watcher HEQ5PRO
Filters
Optolong CLS - CCD
Accessories
Orion Field Flattener for Short Refractors
Software
PixInsight 1.8 · Astro Photography Tool · Stark Labs PHD 2.5 · Photoshop CS4 · DeepSky Corp. Deep Sky Stacker 3.3.3
Guiding Telescopes Or Lenses
Meade 8x50mm Finder/Guider
Guiding Cameras
Starlight Xpress Superstar

Acquisition details

Dates:
July 29, 2016
Frames:
Optolong CLS - CCD: 138x300" (11h 30') ISO400 22°C
Integration:
11h 30'
Darks:
18
Flats:
12
Avg. Moon age:
24.90 days
Avg. Moon phase:
22.37%
Bortle Dark-Sky Scale:
5.00

Basic astrometry details

Astrometry.net job: 1181574

RA center: 18h05m39s.1

DEC center: -23°3050

Pixel scale: 1.704 arcsec/pixel

Orientation: 81.618 degrees

Field radius: 1.964 degrees

Resolution: 620x723

Locations: Home observatory II, Silvânia, GO, Brazil

Description

The Fantastic Four Mosaic - M8, M20, M21, IC4685 and others

Well, after one week of hard work, finally I completed my first mosaic through telescope. Initially, I thought that was necessary only two panels, but in the end was eight.

It was 138 shots of 300 seconds each one in ISO400, resulting in 11.5 hours of exposure, through four nights and several hours of computer processing. Adobe Photoshop helped me a lot to put the parts together, without PS the work would have been much more harder.

The experience gained was the stronger point, furthermore the final image will have a special place in my gallery.

I hope you enjoy it!

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The Fantastic Four Mosaic - M8, M20, M21, IC4685 and others, 



    
        

            Delberson