At the center a Wolf-Rayet star and gas from a red giant. The result of stellar wind from the Wolf gives us the Crescent Nebula. Taken with RC8 telescope @ f/8 unguided using protrack and MyT mount. Exposure times HA 900 seconds x34, OIII 900 seconds x 36. HA assigned to red, OIII both green and blue.
Taken with RC8 telescope @ f/8 unguided using Protrack, QSI 683 mono camera, MyT mount. Luminance exposure was best 100 frames (took 186)x480 seconds, RGB 36 each channel x 240 seconds.
Hoag’s Object is a ring galaxy 620 million light years distant in constellation Serpens, the younger blue stars form a ring around the older core of yellow stars. Unseen here but visible in Hubble images there is another ring galaxy inside this ring.
Located 30 million light years distant in constellation Canes Venatici. Imaged using 8 inch RC telescope @ f/8 unguided, MyT mount, QSI 683 mono camera. exposure times RGB 34 x 240 seconds per channel, L 168 x 240 seconds & 40x 480 seconds, HA 24 x 900 seconds.
Awarded AAPOD2 May 20,2020
The Siamese Twins, also known as the Butterfly Galaxies, are a pair of colliding unbarred spiral galaxies located in Virgo constellation. The galaxies lie at a distance of 59.4 million light years and are members of the Virgo Cluster. Imaged using 8inch RC telescope @ F/8 unguided using MyT mount and Protrack. Exposure times 150x 240 seconds for Lum RGB 30 x 240 seconds each channel. Last date imaged was March 31 and I started a new project a few days later a supernova was found in NGC 4568 which is the larger of the two galaxies.
Messier 66 a weak barred spiral in Leo with loosely wound arms, part of the Leo triplet. Imaged using 8 inch RC telescope @f/8 unguided using MyT mount, QSI 683 mono camera. Exposure times LRGB 240 second sub frames x 250. 30 each channel RGB the rest on Lum. 5 hours spent on HA as well, sub frames 900 seconds.
I could have cropped it out I suppose the rainbow diffraction pattern top L of image is created by a magnitude 7 star just out of field of view.
Image of Abell 2151 centered on NGC 6045. The cluster contains some 200 galaxies 500 million light years distant. Taken with 8 inch RC telescope, 683 mono camera. Exposure times LRGB 240 second subs 30 each channel RGB, 140 x 240 for Lum.
NGC 1491 a bright nebula is Perseus constellation. Image could probably benefit from some more time on it but I moved on. Taken with 8 inch RC telescope, mono camera. LRGB 240 second subs 2 hrs each channel, HA 900 second subs 4 hrs.
Quickie shot of Comet Atlas taken 4/1/2020 with 8 inch RC telescope. 7x 120 seconds each channel LRGB
Colorful with plenty of dark dust bands breaking up the color, home to 400 billion stars. I give you Messier 63, located 27 million light years distant in constellation Canes Venatici. Classified as a flocculent galaxy because spiral arms aren’t visible. I think the spiral structure is obvious however without any clear arms. Taken with 8 inch RC telescope @f/8 unguided using protrack and MyT mount, mono cooled QSI 683 camera. Total exposure 18 hours.
NGC 3079 50 million light years distant in Ursa Major. Large telescopes will show giant “bubbles” coming from area of super massive black hole. There are several other galaxies shown in the field of view. I find the most interesting object the marked quasar toward upper left of center. The 2 bluish objects is actually 1 object gravitationally lensed there is a 417 day delay in any change in brightness between the two objects.
Taken with 8 inch RC telescope @ f/8 unguided using protrack and MyT mount QSI 683 mono camera astrodon filters. Exposure times were 240 seconds each channel LRGB 3 hours each RGB hours Lum.