Monday, November 23, 2020
A new photo of Sharpless 132 (Sh2-132)
I have shot this beautiful target in Cepheus several times with a different focal length instruments. This time I have shot it with my current setup build around Tokina AT-x 300mm f2.8 https://astroanarchy.blogspot.com/2020/01/the-frankenstein-monster-my-current.html
Sharpless 132 in Cepheus
Click for a large image
A closeup
Click for a large image
Older shots with a large instrument
Click for a large image
Image is shot at 2019 and it's a four panel mosaic, more info in this blog post, https://astroanarchy.blogspot.com/2019/02/sharpless-132-sh2-132.html
Image is shot at 2014 and it's a four panel mosaic, more info in this blog post, https://astroanarchy.blogspot.com/2014/11/a-furious-cosmic-horse-gets-blinded-by.html
Technical details
Processing workflow
Image acquisition, MaxiDL v5.07.
Stacked and calibrated in CCDStack2.
Deconvolution with a CCDStack2 Positive Constraint, 33 iterations, added at 50% weight
Color combine in PS CS3
Levels and curves in PS CS3.
Imaging optics
Tokina AT-x f2.8 camera lens
Mount
10-micron 1000
Cameras and filters
Imaging camera Apogee Alta U16 and Apogee seven slot filter wheel
Guider camera, Lodestar x 2 and an old spotting scope of Meade LX200
Astrodon filters,
5nm H-alpha 3nm S-II and 3nm O-III
5nm H-alpha 3nm S-II and 3nm O-III
Total exposure time
H-alpha, 6 x 1200 s, binned 1x1 = 2 h
O-III, 3 x 1200 s, binned 1x1 = 1 h
S-II, 3 x 1200 s, binned 2x2 = 1 h
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1 comment:
Where are the pictures taken from
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