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M33 - 2015 vs. 2016 comparison, star-watcher.ch
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M33 - 2015 vs. 2016 comparison

M33 - 2015 vs. 2016 comparison, star-watcher.ch
Powered byPixInsight

M33 - 2015 vs. 2016 comparison

Equipment

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Acquisition details

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Description

Comparison of M33, 2015 and 2016

Original Image: 2015

Image B: 2016

Image C: animation of both images

The images are taken from my home at Derendingen with the Skywatcher Star Adventurer and Manfrotto 190PRO3 tripod.

2015 image re-stacked and re-processed in PixInsight.

M33 - 2015:



Canon EF 200mm f/2.8L, EOS 100D

f/3.5

ISO1600

18 x 120s (36min)

6 Darks, 10 Bias

No guiding

M33 - 2016:



Canon EF 400mm f/5-6L, EOS 70D

f/5.6

ISO1600

115 x 70s (134min)

43 Darks, 107 Bias

MGEN2 auto guider, Dithering active

Resolution of the 400mm image reduced to fit the field of view of the 200mm.

I like the effect of the Dithering to the background noise structures... they are almost unvisible on the 400mm compared to the 200mm :-) Ok, 6 x more lights and 7 x more darks in 2016 surely have also a big impact to the background noise.

Just want to see my progress in the last year :-)

Comments

Revisions

  • M33 - 2015 vs. 2016 comparison, star-watcher.ch
    Original
  • M33 - 2015 vs. 2016 comparison, star-watcher.ch
    B
  • Final
    M33 - 2015 vs. 2016 comparison, star-watcher.ch
    C

Sky plot

Sky plot

Histogram

M33 - 2015 vs. 2016 comparison, star-watcher.ch