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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
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