Hemisphere:  Southern  ·  Constellation: Crux (Cru)  ·  Contains:  Herschel's Jewel Box  ·  Mimosa (βCru)  ·  NGC 4755  ·  The constellation Crux (Cru)  ·  The star Becrux  ·  The star Gacrux (γCru)  ·  The star α1Cru  ·  The star α2Cru  ·  The star δCru  ·  The star εCru  ·  The star ζCru  ·  The star ηCru  ·  The star θ1Cru  ·  The star μ1Cru  ·  kappa Crucis Cluster
Crux and Coalsack Nebula (C99), 



    
        

            Luiz Ricardo Silveira
Crux and Coalsack Nebula (C99)
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Crux and Coalsack Nebula (C99)

Crux and Coalsack Nebula (C99), 



    
        

            Luiz Ricardo Silveira
Crux and Coalsack Nebula (C99)
Powered byPixInsight

Crux and Coalsack Nebula (C99)

Equipment

Imaging Telescopes Or Lenses
Nikkor 135mm f2.8 AI
Imaging Cameras
Nikon D5000
Mounts
Ioptron CEM25P
Software
Adobe Phosotshop CC · Deep Sky Stacker 3.3.3 Beta 51
Guiding Telescopes Or Lenses
ZWO 60/280 Guiderscope
Guiding Cameras
QHYCCD QHY5L-Ⅱ-c

Acquisition details

Dates:
June 24, 2020
Frames:
96x60" (1h 36') ISO400 bin 1x1
Integration:
1h 36'
Darks:
50
Flats:
50
Bias:
50
Avg. Moon age:
3.29 days
Avg. Moon phase:
11.76%
Bortle Dark-Sky Scale:
5.00

Basic astrometry details

Astrometry.net job: 3652265

RA center: 12h33m37s.9

DEC center: -61°0451

Pixel scale: 8.394 arcsec/pixel

Orientation: 353.596 degrees

Field radius: 5.677 degrees

Resolution: 2701x4051

Locations: Sweet home, Joinville, Santa Catarina, Brazil

Data source: Backyard

Description

The Crux constellation and the Coalsack Nebula (C99) captured with an old DSLR.

My Nikon D5000 have a serious issue with its sensor. On the right corner and top of the image we can see it failure. A region of the sensor which does have a lack of sensitivity.

First I though it was a "flat frame issue", but it's not. Darks and bias doesn't help.

Only after a carefully processing I'm "ok" in posting this picture. But my Nikon D5000 is old, and I'm not happy to say that it needs to retire.

Comments

Revisions

  • Crux and Coalsack Nebula (C99), 



    
        

            Luiz Ricardo Silveira
    Original
  • Final
    Crux and Coalsack Nebula (C99), 



    
        

            Luiz Ricardo Silveira
    B

B

Description: New version with color improvement

Uploaded: ...

Sky plot

Sky plot

Histogram

Crux and Coalsack Nebula (C99), 



    
        

            Luiz Ricardo Silveira