NGC 281, affectionately referred to as the Pacman Nebula, is an emission nebula at an estimated distance of ~9200 light years, in the constellation of Cassiopeia. Equipment: ZWO ASI1600MM-C Camera @ -20C and Gain:200 Offset:50 Software Bisque MyT Mount Stellarvue SVQ100 Astrograph Refractor, 580mm @ f/5.8 Innovations Foresight ONAG Software: Pixinsight Commercial Version 1.8 Lightroom CC Photoshop CC Innovations Foresight SkyGuard Light Frames: Ha: 41 x 360 secs ( 4 hrs 6 mins) OIII: 37 x 360 secs (3 hrs 42 mins) SII: 40 x 360 secs (4 hrs) Red: 24 x 30 secs (12 mins) Green: 22 x 30 secs (11 mins) Blue: 23 x 30 secs (11 mins 30 secs) 12 hrs 22 mins 30 secs total Dark Frames: 10 x 60 secs, RGB (30 mins) 10 x 360 secs, Ha,OIII,SII (3 hrs) Bias Frames 100 Flat Frames 20 each filter More details from Wikipedia: NGC 281, IC 11 or Sh2-184 is a bright emission nebula and part of an H II region in the northern constellation of Cassiopeia and is part of the Milky Way's Perseus Spiral Arm. This 20×30 arcmin sized nebulosity is also associated with open cluster IC 1590, several Bok globules and the multiple star, B 1. It collectively forms Sh2-184,[3] spanning over a larger area of 40 arcmin.[4] A recent distance from radio parallaxes of water masers at 22 GHz made during 2014 is estimated it lies 2.82±0.20 kpc. (9200 ly.) from us.[5] Colloquially, NGC 281 is also known as the Pacman Nebula for its resemblance to the video game character. Edward Emerson Barnard discovered the nebula in August 1883, describing it as "a large faint nebula, very diffuse." Multiple star 'B 1' or β 1 was later discovered by S. W. Burnham, whose bright component is identified as the highly luminous O6 spectral class star, HD 5005 or HIP 4121. It consists of an 8th-magnitude primary with four companions at distances between 1.4 and 15.7 arcsec. There has been no appreciable change in this quintuple system since the first measures were made in 1875.
One of the most beautiful areas of the night sky visible from the Northern Hemisphere, the Rho-Ophiuchi Nebula Complex shows off a myriad of colors in this natural light image captured through LRGB filters. There are also a number of globular clusters visible in the image, the most prominent example being M4, almost directly below the very bright star Antares, which is located in the bright golden area of the image. Equipment: ZWO ASI1600MM-C Camera @ -15C and Gain:74 Offset: 12 Software Bisque MyT Mount Canon 70-300 f/4-5.6 L IS at 135mm and f/5.6 (via step down ring) Software: Pixinsight Commercial Version 1.8 Lightroom CC Photoshop CC Light Frames: Luminance: 44 x 90 secs (66 mins) Red: 10 x 150 secs (25 mins) Green: 11 x 150 secs (27.5 mins) Blue: 10 x 150 secs (25 mins) Dark Frames: 20 x 90 secs (30 mins) 20 x 150 secs (50 mins) Details about The Rho-Ophiuchi Cloud Complex From Wikipedia: The Rho Ophiuchi cloud complex is a dark nebula of gas and dust that is located 1° south of the star ρ Ophiuchi of the constellation Ophiuchus. At an estimated distance of 131 ± 3 parsecs,[2][4] this cloud is one of the closest star-forming regions to the Solar System.[5] Additional details can be found at this Wikipedia link: https://en.wikipedia.org/wiki/Rho_Ophiuchi_cloud_complex
This was shot under local light polluted skies, and there were some high clouds that reduced contrast as well. But shooting in narrowband, I was still able to get some signal. I would like to try this object again in the future potentially under darker skies when I can also get more subframes. The Tadpoles Nebula is named for the 2 little squiggles that look like tadpoles, shown in to the right of center in my image. This dusty star forming region lies approximately 12,000 light years away, and is part of a larger region that also includes the Flaming Star Nebula. Equipment: ZWO ASI1600MM-C Camera @ -15C and Gain:139 Offset:21 Software Bisque MyT Mount Stellarvue SVQ100 Astrograph Refractor, 580mm @ f/5.8 Software: Pixinsight Commercial Version 1.8 Lightroom CC Photoshop CC Light Frames: Ha: 5 x 300 secs (25 mins) OIII: 4 x 300 secs (20 mins) Dark Frames: 20 x 300 secs (1 hr 40 mins)
