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Contains:  NGC 6357, NGC 6334
Getting plate-solving status, please wait...
Cat's Paw and Lobster Nebulae - NGC 6334 and NGC 6357, 





    
        

            Gabriel R. Santos...
Cat's Paw and Lobster Nebulae - NGC 6334 and NGC 6357

Cat's Paw and Lobster Nebulae - NGC 6334 and NGC 6357

Technical card

Resolution: 1260x839

Dates:July 10, 2015

Frames: 8x180" ISO800

Integration: 0.4 hours

Darks: ~10

Bias: ~20

Avg. Moon age: 23.90 days

Avg. Moon phase: 31.77%

Mean FWHM: 4.50

Temperature: 8.60

Astrometry.net job: 772729

RA center: 260.465 degrees

DEC center: -35.430 degrees

Pixel scale: 18.887 arcsec/pixel

Orientation: 121.120 degrees

Field radius: 3.971 degrees

Description

Please do note that this image is only 24' in integration time, and was taken with an unmodified camera (with much less sensitivity in the H-alpha range). Several factors affected this, that was supposed to be a 20x3', or 1 hour in integration. Amongst these, the most noticible were some cirrus-clouds, that dominated the sky for about 30'.

I hope to try again this object next year, with more integration and perhaps guiding, or modded camera. However, for the given conditions, I'm more than happy with the results for now.

Constructive criticism, comments and suggestions are more than welcome in the comments section.
Taken from Rural Skies (Bortle 3-4), from Cristina, MG, Brazil (22ºS latitude). Thanks for looking.

Date and Time: July 10th, 2015, at 21:40h.
Camera: Unmodded Canon T4i/650D, at ISO 800
Lens: Tamron 70-200mm f/2.8 (non-VC), at 200mm and f/3.5
Exposure Detail: 8x180s or 8x3', total only 24 minutes!

Comments

Author

grsotnas
Gabriel R. Santos...
License: None (All rights reserved)
1691
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Cat's Paw and Lobster Nebulae - NGC 6334 and NGC 6357, 





    
        

            Gabriel R. Santos...

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Camera Lens Astrophotography