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Getting plate-solving status, please wait...
Large Magellanic Cloud, 



    
        

            Wei-Hao Wang
Powered byPixInsight

Large Magellanic Cloud

Getting plate-solving status, please wait...
Large Magellanic Cloud, 



    
        

            Wei-Hao Wang
Powered byPixInsight

Large Magellanic Cloud

Imaging Telescopes Or Lenses
Sigma 500mm/F4.0 DG OS HSM
Imaging Cameras
Nikon D800
Mounts
Takahashi EM-11 Temma 2 Jr.
Filters
H alpha
Software
PixInsight · RegiStar · Photoshop CC
Guiding Telescopes Or Lenses
Takahashi 7X50 Finder
Guiding Cameras
QHYCCD QHY5L-II M

Acquisition details

Dates:
Jan. 31, 2019 ·  Feb. 1, 2019 ·  Feb. 9, 2019 ·  Feb. 10, 2019 ·  Feb. 11, 2019
Frames:
92x300" (7h 40') ISO800
H alpha: 38x300" (3h 10') ISO800
Integration:
10h 50'
Avg. Moon age:
13.46 days
Avg. Moon phase:
21.32%
Bortle Dark-Sky Scale:
1.00

RA center: 05h21m13s.61

DEC center: -68°5505.5

Pixel scale: 5.047 arcsec/pixel

Orientation: -0.805 degrees

Field radius: 6.257 degrees

More info:Open 

Resolution: 5496x7040

Locations: Avon Valley, York, Western Australia, Australia

Data source: Traveller

Description

This high-resolution image of the LMC is an eight-frame mosaic. The two previous wider LMC images taken with a 85mm lens and the WO RedCat serve as the reference for registration and gradient removal.

Ver.A (original) has a higher H-alpha weight in the HaRGB composition. This gives more visual impact to the red nebulas, but unfortunately also overpowers the subtle OIII emission in the nebulas. This is a version that more closely resemble an image taken with color slides, and perhaps brings nostalgia to old astrophotographers like me.

Ver.B (final) has lower weights on the H-alpha exposures. It has a better H-alpha-OIII balance. You can see the blue-greenish emission from the OIII in many of the nebulas more clearly.

The original images have about 241 Mega pixels. Here I just upload the 0.4x reduced versions, to save your browser. To look at the full-resolution images, you may use these two Gigapan links:

Ver.A: http://www.gigapan.com/embeds/EjtPCnmfff8/

Ver.B: http://www.gigapan.com/embeds/AHz5TtzJsgk/

Comments

Revisions

    Large Magellanic Cloud, 



    
        

            Wei-Hao Wang
    Original
  • Final
    Large Magellanic Cloud, 



    
        

            Wei-Hao Wang
    B

Sky plot

Sky plot

Histogram

Large Magellanic Cloud, 



    
        

            Wei-Hao Wang