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Hemisphere:  Southern  ·  Contains:  Extremely wide field
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Corona Australis Constelalltion, 


            Gabriel R. Santos...
Corona Australis Constelalltion
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Corona Australis Constelalltion

Technical card

Imaging telescopes or lenses: Tamron 70-200mm f/2.8

Imaging cameras: Canon EOS 650D / Rebel T4i

Mounts: Skywatcher EQ3-2

Software: DeepSkyStacker  ·  Adobe Photoshop Elements 11  ·  Photoshop CS2

Accessory: Skywatcher RA Tracking Motor  ·  Manfrotto 496 RC2 Ball Head

Dates:July 23, 2014

Frames: 17x90" ISO1600

Integration: 0.4 hours

Darks: ~10

Avg. Moon age: 26.40 days

Avg. Moon phase: 10.70%

Temperature: 6.30

Basic astrometry details job: 354519

RA center: 18h 56' 28"

DEC center: -39° 30' 46"

Orientation: 170.622 degrees

Field radius: 10.715 degrees

Resolution: 1378x920


This constellation in located Southeast of the Center of the Galaxy (EQ Coordinates). It is truly beautiful from a Dark Sky, and, as it is realively faint, it is only visible from darker skies (~Bortle 5 or less, I imagine). In binoculars it is truly amazing, and in long exposure photographs, such as this one, the "Corona Australis Molecular Cloud" is detectable. This molecular Cloud would be clearer in longer exposures (>1h), but in this 0.4h image it is apparent as the Dark Nebulosity around the stars γ CrA and ε CrA.

Corona Australist is, however, only visible to latitudes below 35-40º North, being very low at the horizon for such latitudes. As this image was taken from 22º S, this constellation shines brightly in the Zenith at the Winter (for the Southern Hem.).

This image is the last one of my work in this year's July (2014). I was quite happy with all of my pictures, and I've learned many things, from the Polar Alignment, to the Post-Processing. Thanks for your help, and now, with the HEQ5, I hope I get even better pictures. Taken from Rural Skies (Bortle 3-4), in MG, Brazil. Thanks for seeing.

Camera: Unmodded T4i/650D at ISO 1600
Lens: Tamron 70-200mm f/2.8, @ 70mm and f/3.2
Exposure Detail: 17x90s; or 17x1.5 minutes; total 25.5 minutes.



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


  • Corona Australis Constelalltion, 


            Gabriel R. Santos...
  • Corona Australis Constelalltion, 


            Gabriel R. Santos...
  • Corona Australis Constelalltion, 


            Gabriel R. Santos...
  • Final
    Corona Australis Constelalltion, 


            Gabriel R. Santos...

Sky plot

Sky plot


Corona Australis Constelalltion, 


            Gabriel R. Santos...