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Friday, April 24, 2020

All my photos from the Winter season 2020 in visual colors

I have published this image poster in mapped colors at April 15. 2020
It can be seen here, https://astroanarchy.blogspot.com/2020/04/all-my-photos-from-winter-season-2020.html We have lost the astronomical darkness for about six months, up here 65 North.
Next time I'm going to be able to do the deep sky imaging will be at mid September 2020.

This time I'm publishing the same image set in visual colors.  Colors are combined from narrowband channels emission from an ionized hydrogen, sulfur and oxygen (H-alpha, S-II and O-III) are combined by following method;
Hydrogen and sulfur are both in red channel, oxygen has split between green and blue channel.

I was able to have my imaging system up and running very late, at first week of January 2020. I build my imaging system around an old Tokina AT-x 300mm f2.8 camera lens by mating the Apogee Alta U16 camera with it. Not an easy task due to very large CCD in Apogee camera and lack of back focus distance in Tokina lens.
I even used an angle grinder to shorten up the lens!
Some info and images about my imaging tools can be seen here, https://astroanarchy.blogspot.com/2020/01/the-frankenstein-monster-my-current.html

I made a poster format presentation about all of my new photos from the Winter season 2020.
There are some very rare images from this imaging season. Photo 2 in poster might be the first three band image of this nebula pair. Photo 12 might be the first color image ever showing this area in sky. Boths targets are dim to extreme and lots of exposure time was needed even though I was using very fast optical configuration  (Under sampled optics, ~6 arcseconds/pixel)


Winter season 2020
A very large image, 3300 x 4800 pixels and 17 MB

All of the photos in this poster has been taken with the Tokina AT-x 300mm f2.8 camera lanes, Apogee Alta U16 astronomical camera and the Astrodon narrowband filter set. (5nm H-alpha, 3nm S-II and 3nm O-III) All photos have been shot from my down town observatory. Location is very light polluted, the sky quality is  Bortle scale eight!

IMAGE INFO
  1. Cederblad 214 and Sh2-170, https://astroanarchy.blogspot.com/2020/02/new-photo-of-cederblad-214-cosmic.html
  2. Supernova remnant and a planetary nebula in a same field of view, https://astroanarchy.blogspot.com/2020/04/two-ways-to-go-in-same-field-of-view.html
  3. From Bubble to Cave Nebula, https://astroanarchy.blogspot.com/2020/03/from-bubble-to-cave-round-ii.html
  4. Supernova remnant CTB1, https://astroanarchy.blogspot.com/2020/02/ctb1-supernova-remnant-in-cassiopeia.html
  5. Supernova remnant IC 443, https://astroanarchy.blogspot.com/2020/03/supernova-remnant-ic-443-wide-field.html
  6. NGC 1499, the California Nebula, https://astroanarchy.blogspot.com/2020/01/a-deep-view-to-california-nebula-in.html
  7. IC 405 & IC 410, https://astroanarchy.blogspot.com/2020/03/new-photo-deep-in-to-darkness.html¨
  8. IC 63 & NGC 281, https://astroanarchy.blogspot.com/2020/03/ic-63-and-ngc-281.html
  9. Simeis 147, https://astroanarchy.blogspot.com/2020/02/simeis-147-sh2-240-large-supernova.html
  10. Heart Nebula, https://astroanarchy.blogspot.com/2020/01/deep-in-to-my-heart-ic-1805-in-mapped.html
  11. C 1396, the Elephant's Trunk Nebula, https://astroanarchy.blogspot.com/2020/01/ic-1396-wide-field-reprocessed.html
  12. The Grande Mosaic of Auriga, https://astroanarchy.blogspot.com/2020/03/the-grande-mosaic-of-auriga.html
  13. Sharpless 205, NGC 1491 and  Lynds Bright Nebula 696, https://astroanarchy.blogspot.com/2020/03/a-two-frame-mosaic-photo-of-sharpless.html
  14. The Grande Mosaic of Auriga, https://astroanarchy.blogspot.com/2020/03/the-grande-mosaic-of-auriga.html


www.tips-fb.com Posted by J-P Metsavainio at 9:11 AM 0 comments
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Tuesday, April 21, 2020

Grayscale Wonders part III

All the photos, I have published, are taken with a grayscale astronomical camera. Each color channel is shot separately and then combined to RGB color image. Since I'm doing only narrowband imaging due the extensive light pollution color channels are are emission line images. Most of the time I'm capturing three emission lines hydrogen, sulfur and oxygen. (H-alpha, S-II and O-III)

Usually most of the details are in hydrogen alpha emission line. Gray scale images can be really beautiful and many times I personally like them best. I will publish now some of my images from this winter season as a grayscale compositions. This is a part III of Grayscale Wonders, part one and two can be seen here: Part one, https://astroanarchy.blogspot.com/2020/04/greyscale-wonders.html
Part two, https://astroanarchy.blogspot.com/2020/04/grayscale-wonders-part-ii.html


Please, open the full size photo by clicking the image, it's really worth it!
NGC 1491

www.tips-fb.com Posted by J-P Metsavainio at 12:53 PM 0 comments
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Wednesday, April 15, 2020

All my photos from the Winter season 2020


We have lost the astronomical darkness for about six months, up here 65 North.
Next time I'm going to be able to do the deep sky imaging will be at mid September 2020.

This imaging season was different than before. I was able to have my imaging system up and running very late, at first week of January 2020. I build my imaging system around an old Tokina AT-x 300mm f2.8 camera lens by mating the Apogee Alta U16 camera with it. Not an easy task due to very large CCD in Apogee camera and lack of back focus distance in Tokina lens.
I even used an angle grinder to shorten up the lens!
Some info and images about my imaging tools can be seen here, https://astroanarchy.blogspot.com/2020/01/the-frankenstein-monster-my-current.html

I made a poster format presentation about all of my new photos from the Winter season 2020.
There are some very rare images from this imaging season. Photo 2 in poster might be the first three band image of this nebula pair. Photo 12 might be the first color image ever showing this area in sky. Boths targets are dim to extreme and lots of exposure time was needed even though I was using very fast optical configuration  (Under sampled optics, ~6 arcseconds/pixel)



Winter season 2020
A very large image, 3300 x 4800 pixels and 17 MB

All of the photos in this poster has been taken with the Tokina AT-x 300mm f2.8 camera lanes, Apogee Alta U16 astronomical camera and the Astrodon narrowband filter set. (5nm H-alpha, 3nm S-II and 3nm O-III) All photos have been shot from my down town observatory. Location is very light polluted, the sky quality is  Bortle scale eight!


INFO
  1. Cederblad 214 and Sh2-170, https://astroanarchy.blogspot.com/2020/02/new-photo-of-cederblad-214-cosmic.html
  2. Supernova remnant and a planetary nebula in a same field of view, https://astroanarchy.blogspot.com/2020/04/two-ways-to-go-in-same-field-of-view.html
  3. From Bubble to Cave Nebula, https://astroanarchy.blogspot.com/2020/03/from-bubble-to-cave-round-ii.html
  4. Supernova remnant CTB1, https://astroanarchy.blogspot.com/2020/02/ctb1-supernova-remnant-in-cassiopeia.html
  5. Supernova remnant IC 443, https://astroanarchy.blogspot.com/2020/03/supernova-remnant-ic-443-wide-field.html
  6. NGC 1499, the California Nebula, https://astroanarchy.blogspot.com/2020/01/a-deep-view-to-california-nebula-in.html
  7. IC 405 & IC 410, https://astroanarchy.blogspot.com/2020/03/new-photo-deep-in-to-darkness.html¨
  8. IC 63 & NGC 281, https://astroanarchy.blogspot.com/2020/03/ic-63-and-ngc-281.html
  9. Heart Nebula, https://astroanarchy.blogspot.com/2020/01/deep-in-to-my-heart-ic-1805-in-mapped.html
  10. IC 1396, the Elephant's Trunk Nebula, https://astroanarchy.blogspot.com/2020/01/ic-1396-wide-field-reprocessed.html
  11. The Grande Mosaic of Auriga, https://astroanarchy.blogspot.com/2020/03/the-grande-mosaic-of-auriga.html
  12. Sharpless 205, NGC 1491 and  Lynds Bright Nebula 696, https://astroanarchy.blogspot.com/2020/03/a-two-frame-mosaic-photo-of-sharpless.html
  13. Great Mosaic of Cepheus, https://astroanarchy.blogspot.com/2020/03/great-mosaic-of-cepheus.html
  14. Simeis 147, The Birth of Venus, https://astroanarchy.blogspot.com/2020/03/the-birth-of-venus.html



www.tips-fb.com Posted by J-P Metsavainio at 7:29 AM 0 comments
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Tuesday, April 7, 2020

Grayscale Wonders part II


All the photos, I have published, are taken with a grayscale astronomical camera. Each color channel is shot separately and then combined to RGB color image. Since I'm doing only narrowband imaging due the extensive light pollution color channels are are emission line images. Most of the time I'm capturing three emission lines hydrogen, sulfur and oxygen. (H-alpha, S-II and O-III)

Usually most of the details are in hydrogen alpha emission line. Gray scale images can be really beautiful and many times I personally like them best. I will publish now some of my images from this winter season as a grayscale compositions. This is a part II of Grayscale Wonders, part one can be seen here, https://astroanarchy.blogspot.com/2020/04/greyscale-wonders.html

Please, open the full size photo by clicking the image, it's really worth it!



A two frame mosaic photo of Sharpless 205, NGC 1491 and Lynds Bright Nebula 696

Image details and a mapped color version can be found here, 
https://astroanarchy.blogspot.com/2020/03/a-two-frame-mosaic-photo-of-sharpless.html
nebula in visual colors can be seen here,
https://astroanarchy.blogspot.com/2020/03/sharpless-205-ngc-1491-and-lynds-bright.html


Great Mosaic of Cepheus
Image details and a mapped color version can be found here, 
https://astroanarchy.blogspot.com/2020/03/great-mosaic-of-cepheus.html

Great Mosaic of Auriga

Image details and a mapped color version can be found here, 
https://astroanarchy.blogspot.com/2020/03/the-grande-mosaic-of-auriga.html







www.tips-fb.com Posted by J-P Metsavainio at 2:36 PM 0 comments
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