Sunday, October 21, 2018
A very rare photo, Cygnus Shell, supernova remnant G82.2 + 5.3 W63
I have planned to shoot this very difficult target for many years. At this Autumn season I had a possibility to finalized my imaging project with this, not so well known, supernova remnant W63 in Western part of the constellation Cygnus.
The final photo is a twelve panel mosaic with a total exposure time of over 100h. Image is shot with a Celestron Edge 1100 (with a 0.7 focal reducer), Apogee Alta U16 and AstroDon narrowband filters (5nm H-alpha 3nm S-II and 3nm O-III)
Individual panels are shot between years 2015 and 2018. O-III and some missed data are shot at this ongoing Autumn season.
The final photo is a twelve panel mosaic with a total exposure time of over 100h. Image is shot with a Celestron Edge 1100 (with a 0.7 focal reducer), Apogee Alta U16 and AstroDon narrowband filters (5nm H-alpha 3nm S-II and 3nm O-III)
Individual panels are shot between years 2015 and 2018. O-III and some missed data are shot at this ongoing Autumn season.
Cygnus Shell, W63
Please, click for a large photo it's worth it!
Image is in mapped colours, from the emission of ionized elements, R=Sulphur, G=Hydrogen and B=Oxygen. This mosaic image of twelve individual panels covers about four degrees of sky vertically.
Cygnus Shell in a large context
Please, click for a large photo it's worth it!
An older 18-panel mosaic od Cygnus Nebula Complex back from 2012. Total exposure time around 150h. QHY9 astrocam, Canon AF 200mm f1.8 lens and Baader narrowband filter set.
A close up
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Animated image
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This animation shows the shell of an ionized oxygen without H-a and S-II channels.
Info
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Couple of calibrated and stretched 20 min exposures of O-III light
Tuesday, October 9, 2018
Astro Anarchy get published, a new exhibition in Oulu, Finland
A new exhibition in Oulu, Finland! Lots of my new photos as a large size Diasec prints.
More Info, please have a look, ( Finnish )
Wednesday, October 3, 2018
First light for the Autumn season 2018, Filaments of the Western Cygnus
After a long mandatory Summer pause, due to high latitude, I managed to have my first light for this season! My first target locates in Western part of the Cygnus nebula complex. This area is not commonly imaged due to close proximity of more famous and brighter target in Cygnus.
As usually, this single image is a start of the longer imaging projet. My purpose is to make a four panel mosaic out of this area.
Filaments of the Western Cygnus
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Photo in visual palette
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Orientation in Cygnus
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 x 2 and SXV-AOL
Astrodon filters,
5nm H-alpha 3nm S-II and 3nm O-III
5nm H-alpha 3nm S-II and 3nm O-III
Exposure times
H-alpha, 12 x 1200 s, binned 2x2 = 4 h
O-III, 9 x 1200 s, binned 4x4 = 3 h.
S-II, 9 x 1200 s. binned 4x4 = 3 h
Total 10 h.
Tuesday, February 6, 2018
Sharpless 157 in Cassiopeia, project continues
Few weeks ago I published a new photo of Sharpless 157, it can be seen HERE. We had one of
the rare clear nights at last Sunday night. I managed to get just enough exposures to add a second frame to this two frame mosaic image of Sh2-157.
Sharpless 157 (Sh2-157)
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An experimental starless version
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A closeup
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INFO
Sharpless 157
The night sky between the constellations Cassiopeia and Cepheus is rich with nebulae and star clusters. The nebulae visible in this image include Sharpless 157 and Lynd’s Bright Nebula 537. The star clusters include Markarian 50 and NGC 7510. The planetary Nebula PLN 110-0.1 (WeSb) can be seen at lower left.
Sharpless 157 is sometimes referred to as the Lobster Claw Nebula for obvious reasons. The bright spot at upper left quarter of this photo is Lynd’s Bright Nebula (LBN) 537. Also designated at Sh 2 – 157a, it is a ring nebula around the Wolf-Rayet star WR 157.
At the lower right quarter of the image lays open star cluster NGC 7510.
Please, click for a large image
An older wide field photo of the area
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The area of a new photo is marked as a white rectangle. The Bubble nebula can be seen as a bluish pearl, just half a degree North West from the Sharpless 157.
This photo is shot at 2007 with a QHY 8 astrocamera and the Baader narrowband filter set, H-a, S-II and O-III
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 x 2 and SXV-AOL
Astrodon filters,
5nm H-alpha 3nm S-II and 3nm O-III
5nm H-alpha 3nm S-II and 3nm O-III
Exposure times
H-alpha, 24 x 1200 s, binned 2x2 = 8 h
O-III, 10 x 1200 s, binned 4x4 = 3 h 20 min.
S-II, 9 x 1200 s. binned 4x4 = 3 h
Total 14 h 20 min
A single uncropped, calibrated and stretched 20 min. exposures as they come out from the camera.
H-alpha
S-II
O-III
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