NGC 891 LRGB
This image of edge-on galaxy NGC 891 adds color data to the monochrome image here www.flickr.com/photos/124244349@N07/37267276371/in/photos.... NGC 891 is 30 million light years distant and is said to resemble our milky way as viewed from the side.
Tech Stuff: Questar 3.5" telescope at native 1570 focal length (f ratio 18); unguided Questar PGII fork mount. QHY163 mono camera using SharpCap Live stacks of 8 second subframes; total exposure in minutes L 49, R 42, G 13, B 25 (differences are arbitrary. L bin 1; RGB bin2). Processed with PixInsight. Imaged from my yard 10 miles north of New York City as part of my continuing exploration of ultraportable urban astrophotography.
NGC 891 LRGB
This image of edge-on galaxy NGC 891 adds color data to the monochrome image here www.flickr.com/photos/124244349@N07/37267276371/in/photos.... NGC 891 is 30 million light years distant and is said to resemble our milky way as viewed from the side.
Tech Stuff: Questar 3.5" telescope at native 1570 focal length (f ratio 18); unguided Questar PGII fork mount. QHY163 mono camera using SharpCap Live stacks of 8 second subframes; total exposure in minutes L 49, R 42, G 13, B 25 (differences are arbitrary. L bin 1; RGB bin2). Processed with PixInsight. Imaged from my yard 10 miles north of New York City as part of my continuing exploration of ultraportable urban astrophotography.