Tuesday, October 23, 2018
A very rare photo, Cygnus Shell, supernova remnant G82.2 + 5.3 W63 in visual spectrum
I have now finalized my imaging project with this not so well known, supernova remnant, W63, in Western part of the constellation Cygnus.
This time I made a version in visual colors from narrowband channels.
Red light from an ionized hydrogen, H-alpha, is dominating the scene. The actual supernova remnant glows in blueish light emitted by an ionized oxygen, O-III. The mapped color version can be seen in my previous blog post.
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.
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, in visual spectrum
Please, click for a large photo it's worth it!
Please, click for a large photo it's worth it!
Image is in Natural color palette from the emission of ionized elements, R=Hydrogen + Sulphur, G=Oxygen and B=Oxygen + 10% Hydrogen to compensate the missing H-beta emission.
A mapped color version can be seen HERE
Jus the light from an ionized oxygen, O-III
Four panel mosaic of W63 supernova remnant in O-III light alone
Orientation in a large context
Please, click for a large photo it's worth it!
A large 18-panel mosaic image of the Cygnus Nebula Complex shows 22 x 14 degrees of sky.
The W63 supernova remnant can be seen as a blueish ring at upper middle. More info about this grande mosaic image can be found from HERE
INFO
W63 (G82.2+5,3) is a large supernova remnant that can be observed in the north region of Cygnus at distance of about 5200 light years.
It spans around 100 arcminutes and its filaments are expanding at speed ranging from 35 to 70 km/s. In 2004 the existence in this supernova remnant of an X-ray pulsar with 36 second period was reported.
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
Please, click for a large photo it's worth it!
Animated image
Please, click for a large photo
This animation shows the shell of an ionized oxygen without H-a and S-II channels.
Info
Please, click for a large text
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
Please, click for a large image
Photo in visual palette
Please, click for a large image
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.
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