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Contains:  Extremely wide field
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Southern Milky Way - Autumn Sky - Centered on Crux, 





    
        

            Gabriel R. Santos...
Southern Milky Way - Autumn Sky - Centered on Crux

Southern Milky Way - Autumn Sky - Centered on Crux

Technical card

Resolution: 2400x1601

Dates:April 9, 2016

Frames: 6x300" ISO1600

Integration: 0.5 hours

Avg. Moon age: 2.37 days

Avg. Moon phase: 6.23%

Temperature: 12.70

Astrometry.net job: 1497033

RA center: 175.204 degrees

DEC center: -62.635 degrees

Pixel scale: 103.875 arcsec/pixel

Orientation: 151.461 degrees

Field radius: 41.625 degrees

Locations: Sítio, Cristina, MG, Brazil

Description

The Milky Way from Southern latitudes in mid-March to May is a breathtaking view. Although perhaps not as much as the Winter (~July), with the center overhead, Crux, Carina, Vela and Puppis, Centaurus and Lupus are the main constellations that present themselves in the view. This image also captured the late and setting Large Magellanic Cloud, low on the horizon. If you haven't yet travelled Down Under, the sky is definitely worth it IMO, and I strongly recommend it, especially in March-July period.

Due to the relatively low altitude of the objects, a gradient is visible in the bottom right side of the frame, coming primarly from LP from nearby town Itajubá, which really pollutes the southwestern horizon. I did as much as I could in PS, but it is still there. The lower left corner also shows a bit of horizon glow from farther away smaller citiies, on the Milky Way itself.

Post processing slightly different: Stacked and edited in Photoshop, using Auto-Align and Smart Objects Stacking. The result is quite noisy, as no calibration data is applied, but the I was fighting with the DSS stacked image, as it presented heavy gradients and a green cast that I couldn't fully solve in PS.

*Please check the full image 2400px - resized from original)*

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), from Cristina, MG, Brazil (22ºS latitude).

Date and Time: April 9th, 2016, at 22h (10pm) (UTC-3)
Camera: Unmodded Canon T5/1200D, at ISO 1600
Lens: Canon 18-135mm STM, at 18mm, operated at f/5
Exposure Detail: 6x300s, total 30min

Comments

Author

grsotnas
Gabriel R. Santos...
License: None (All rights reserved)
2520
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Revisions

  • Southern Milky Way - Autumn Sky - Centered on Crux, 





    
        

            Gabriel R. Santos...
    Original
  • Final
    Southern Milky Way - Autumn Sky - Centered on Crux, 





    
        

            Gabriel R. Santos...
    B

B

Improved Color and Gradient Correction

Sky plot

Sky plot

Histogram

Southern Milky Way - Autumn Sky - Centered on Crux, 





    
        

            Gabriel R. Santos...