COPYRIGHT, PLEASE NOTE

All the material on this website is copyrighted to J-P Metsavainio, if not otherwise stated. Any content on this website may not be reproduced without the author’s permission.

Have a visit in my portfolio

Vieraile portfoliossani

Wednesday, October 31, 2018

Filaments of Cygnus




I have shot the constellation Cygnus for many years with different instruments. Due to that, I'm able to build mosaic images from my overlapping material. This time I made a four panel mosaic showing remains of  the two exploded stars in Western Cygnus.

Bluish hues at left part of the panoramic image are from supernova remnant W63. At most right lays the planetary nebula PM 1-320.

This four panel panoramic mosaic has a total exposure time of about 35 hours.
Each panel is shot with Celestron Edge 11" reflecting telescope (with a 0.7 focal reducer), Apogee Alta U16 cooled astrocamera and Astrodon narrowband filter set (5nm H-alpha, 3nm S-II and 3nm O-III)

Filaments of cygnus
Please, click for a large image

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.



H-alpha alone
Please, click for a large image

This photo shows the light from an ionized hydrogen (H-alpha emission) alone 



Filaments of Cygnus in mapped colors
Please, click for a large image

Image is in mapped colours, from the emission of ionized elements, R=Sulphur, G=Hydrogen and B=Oxygen. This mosaic image of four individual panels covers about four degrees of sky vertically.






Monday, October 29, 2018

Clouds of Swan



A new photo from last night. Detail shot from the central area of the Cygnus nebula complex.


Clouds of Swan
Please, click for a large image

Image is in mapped colours, from the emission of ionized elements, R=Sulphur, G=Hydrogen and B=Oxygen. 


An experimental starless version
Please, click for a large image

The details of gas formation are standing out better in this starless version.


A two panel mosaic
Please, click for a large image

My older photo of central Cygnus was overlapping with the new image, so I was able to build a two frame panoramic mosaic.


Orientation in Cygnus Nebula complex
Please, click for a large image

The area of two panel mosaic is marked as a white rectangle.

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
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

Exposure times for both panels together

H-alpha, 9 x 1200 s, binned 2x2 = 3 h
O-III, 3 x 1200 s, binned 4x4 = 1 h.
S-II, 3 x 1200 s. binned 4x4 = 1 h


Thursday, October 25, 2018

This new photos shows the LBN 251 and companions in Cygnus


My latest photo show a busy area in Cygnus, there are not too many photos out of this area alone.
My large mosaic image of cygnus shows this object group as pow tie shaped formation.



Bow Tie of LBN 251, LBN 239 and the IC 1311
Click for a large photo

This two panel mosaic image is in mapped colours, from the emission of ionized elements, R=Sulphur, G=Hydrogen and B=Oxygen. 


H-alpha emission only
Click for a large photo

This grayscale photo shows just the emission of an ionized hydrogen, H-alpha,


Closeup of LBN 239
Click for a large photo

The dense star group at bottom left is the open cluster IC 1311


Orientation in the large context
Click for a large photo

The area of interest is marked as a white rectangle 


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
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

Exposure times for both panels together

H-alpha, 18 x 1200 s, binned 2x2 = 6 h
O-III, 9 x 1200 s, binned 4x4 = 3 h.
S-II, 9 x 1200 s. binned 4x4 = 3 h
Total 12 h.


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.


Cygnus Shell, W63, in visual spectrum
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. 

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!


The Cygnus Shell, the supernova remnant W63, can be seen as a blueish ring  at upper center.
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!

Filaments of an ionized hydrogen, sulfur and oxygen


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


This is a really dim target...


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

Image is in mapped colours, from the emission of ionized elements, R=Sulphur, G=Hydrogen and B=Oxygen. The photo width is about one degree of sky. (The full Moon covers about 0,5 degrees of sky.)


Photo in visual palette
Please, click for a large image

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.


Orientation in Cygnus

The area of interest is marked as a white rectangle 


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

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.