Sadr Region HSO
After a long break we had a string of nice nights for imaging in early August. Sadr, the brightest star in this image is the 2nd brightest star in summer constellation Cygnus and it is surrounded by a region of hydrogen and interstellar dust. The Crescent Nebula at upper left emerges as a vibrant magenta thanks to significant oxygen emitting blue light to blend with hydrogen's red.
Tech Stuff: Borg 55FL/ ZWO ASI 533 Mono/ RST-135E unguided /Astronomik NB filter set HA 30 second exposures X 50 min; SII 30 second exposures X 50 min; OIII 30 seconds X 80 min. From my yard in Yonkers, NY, imaged over 3 nights with SQM-L readings 18.2-18.8
Sadr Region HSO
After a long break we had a string of nice nights for imaging in early August. Sadr, the brightest star in this image is the 2nd brightest star in summer constellation Cygnus and it is surrounded by a region of hydrogen and interstellar dust. The Crescent Nebula at upper left emerges as a vibrant magenta thanks to significant oxygen emitting blue light to blend with hydrogen's red.
Tech Stuff: Borg 55FL/ ZWO ASI 533 Mono/ RST-135E unguided /Astronomik NB filter set HA 30 second exposures X 50 min; SII 30 second exposures X 50 min; OIII 30 seconds X 80 min. From my yard in Yonkers, NY, imaged over 3 nights with SQM-L readings 18.2-18.8