Thursday, December 8, 2016
Pelican Nebula, a two frame mosaic
At November 30 I published a new photo about dark filaments between North America and Pelican Nebula. Later I found out, that my shot was overlapping with my older photo of the Pelican nebula. This image is combination out of those two images.
Pelican Nebula
Please, click for a large image
Technical details
Can be found HERE, for the upper part of the image
And HERE, for the lower part of the mosaic image above
Wednesday, November 30, 2016
A detail photo of the dark filaments in Pelican nebula
I have shot lights for this image back in October 5 but found time to process them just now.
The complex cloud of dust and gas locates in front of the ionized gas clouds. Ionized gas, mainly oxygen in this photo, is emitting light and due to that we are able to see the dark formation,
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An experimental starless version
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Orientation
Please, click for a large image
Area of interest is marked as a white rectangle
This wide field photo of the North America and Pelican Nebulae was shot with Canon EF 200 mm f1.8 camera lens, QHY9 astrocam and Baader narrowband filters.
This wide field photo of the North America and Pelican Nebulae was shot with Canon EF 200 mm f1.8 camera lens, QHY9 astrocam and Baader narrowband filters.
Technical details
Processing work flow
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
Celestron Edge HD 1100 @ f10 with 0,7 focal reducer for Edge HD 1100 telescope
Mount
10-micron 1000
Cameras and filters
Imaging camera Apogee Alta U16 and Apogee seven slot filter wheel
Guider camera, Lodestar x2 and SXV-AOL
Astrodon filter, 5nm H-alpha
Astrodon filter, 3nm O-III
Astrodon filter, 3nm S-II
Exposure times for all three panels
H-alpha, 6 x 1200 s = 2 h
S-II, 6 x 1200 s binned 2x2 = 2 h
O-III information is taken from an older the wide field shot seen above, ~2 h
O-III information is taken from an older the wide field shot seen above, ~2 h
Total 6 h
Tuesday, November 29, 2016
A little different view to the North America nebula, part III
This photo is result from my mosaic project for this Autumn season. My purpose was to image the North America Nebula, NGC 7000, and show it little differently, than usually. This object is a popular target among astro photographers, I found some rarely imaged areas and made my composition out of them. There are three panels used for this mosaic, total exposure time for all three emission line is around 16 hours.
A detail from the North America nebula as a three panel mosaic
Please, click for a large image
An experimental starless version
Please, click for a large image
Image in natural colors
Please, click for a large image
R=Hydrogen + Sulphur, G=Oxygen and B=Oxygen + ~10% Hydrogen.
Couple of individual image panels
Please, click for a large image
Orientation
Please, click for a large image
This wide field photo of the North America and Pelican Nebulae was shot with Canon EF 200 mm f1.8 camera lens, QHY9 astrocam and Baader narrowband filters.
Technical details
Processing work flow
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
Celestron Edge HD 1100 @ f10 with 0,7 focal reducer for Edge HD 1100 telescope
Mount
10-micron 1000
Cameras and filters
Imaging camera Apogee Alta U16 and Apogee seven slot filter wheel
Guider camera, Lodestar x2 and SXV-AOL
Astrodon filter, 5nm H-alpha
Astrodon filter, 3nm O-III
Astrodon filter, 3nm S-II
Exposure times for all three panels
H-alpha, 18 x 1200 s = 6 h
O-III, 18 x 1200 s binned 2x2 = 5 h
S-II, 18 x 1200 s binned 2x2 = 5 h
Total 16 h
Thursday, November 24, 2016
Filaments of the Veil Nebula in natural colors
This is a new version of the Filaments of Veil photo. It shows the nebula complex in visual spectrum. Most strong emission line is hydrogen alpha, H-a, it can be seen as a red color. Blue hues are from an ionized oxygen, O-III.
My latest image is a composition of exposures from several nights, months and years. Couple of weeks ago, when we had some clear night last time, I took couple of shots from Veil Nebula. This time my purpose was to show some rarely imaged details and structures in this complex ball of expanding gas, leftovers from a massive explosion, the supernova.
My latest image is a composition of exposures from several nights, months and years. Couple of weeks ago, when we had some clear night last time, I took couple of shots from Veil Nebula. This time my purpose was to show some rarely imaged details and structures in this complex ball of expanding gas, leftovers from a massive explosion, the supernova.
I combined this new material to my older images of the area. Total exposure time for this five panel mosaic is around 37 h.
Filaments of the Veil in natural colors
Please, click for a full size image
Image is in Natural color palette from the emission of ionized elements,
R=Hydrogen + Sulfur, G=Oxygen and B=Oxygen + Hydrogen.
Technical details
Processing work flow
Image acquisition, MaxiDL v5.07.
Stacked and calibrated in CCDStack2.
Deconvolution with a CCDStack2 Positive Constraint, 21 iterations, added at 25% weight
Color combine in PS CS3
Levels and curves in PS CS3.
Imaging optics
Celestron Edge HD 1100 @ f7 with 0,7 focal reducer for Edge HD 1100 telescope
Mount
10-micron 1000
Cameras and filters
Imaging camera Apogee Alta U16 and Apogee seven slot filter wheel
Guider camera, Lodestar x2 and SXV-AOL
Astrodon filter, 5nm H-alpha
Astrodon filter, 3nm O-III
Astrodon filter, 3nm S-II
Exposure times
New material from this Autumn season, total exposure time 15 h
H-alpha, 15 x 1200s = 5h
O-III, 15 x 1200s binned = 5h
S-II, 15 x 1200s binned = 5h
Older material used for this mosaic image
Pickering's Triangle mosaic, https://astroanarchy.blogspot.fi/2015/09/pickerings-triangle-my-first-light-for.html
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