Cookie consent

AstroBin saves small pieces of text information (cookies) on your device in order to deliver better content and for statistical purposes. You can disable the usage of cookies by changing the settings of your browser. By browsing AstroBin without changing the browser settings, you grant us permission to store that information on your device.

I agree
Contains:  NGC 6723, The star βCrA, The star αCrA, The star γCrA, The star εCrA, Part of the constellation Corona Austrina (CrA)
Getting plate-solving status, please wait...
Corona Australis Constellation and Molecular Cloud Revisited, 





    
        

            Gabriel R. Santos...
Corona Australis Constellation and Molecular Cloud Revisited

Corona Australis Constellation and Molecular Cloud Revisited

Technical card

Resolution: 1800x1200

Dates:Sept. 8, 2017

Frames: 25x240" ISO800

Integration: 1.7 hours

Darks: ~15

Bias: ~30

Avg. Moon age: 17.04 days

Avg. Moon phase: 94.27%

Mean FWHM: 3.30

Temperature: 12.00

Astrometry.net job: 1760573

RA center: 287.091 degrees

DEC center: -37.710 degrees

Pixel scale: 13.039 arcsec/pixel

Orientation: 0.535 degrees

Field radius: 3.918 degrees

Locations: Sítio, Cristina, MG, Brazil

Description

Just to give an idea of what processing does to an image, I posted a uncalibrated RAW light frame, in which you can see (or not see) the dust that is hidden in the darkest parts of the histogram along with noise. Check it out http://astrob.in/full/315745/0/?real=

*Please check the full image 1800px - resized from original 6000px)*

Constructive criticism, comments and suggestions are more than welcome in the comments section. Thank's for taking your time to look at this image.

Taken from Rural Skies (Bortle 3-4; NELM ~6.2; SQM ~21.6*calculated), from Cristina, MG, Brazil (22ºS latitude).

Date and Time: September 08, 2017
Camera: Canon EOS 80D (unmodded), at ISO 800
Lens: Tamron 70-200mm f/2.8, operated at 200mm f/3.5
Mount: Sky-Watcher HEQ5, tracking, guided
Guiding: Starguider 50mm Guidescope + ASI120mm + PHD2; ~1.7" RMS
Exposure Detail: 25x240s (total 100min)

Comments

Author

grsotnas
Gabriel R. Santos...
License: None (All rights reserved)
3434
Like

Revisions

  • Corona Australis Constellation and Molecular Cloud Revisited, 





    
        

            Gabriel R. Santos...
    Original
  • Final
    Corona Australis Constellation and Molecular Cloud Revisited, 





    
        

            Gabriel R. Santos...
    B

B

Enhanced contrast and saturation

Sky plot

Sky plot

Histogram

Corona Australis Constellation and Molecular Cloud Revisited, 





    
        

            Gabriel R. Santos...