Sharpless 101 (Sh2-101) also known as the Tulip Nebula is yet another gem found in Cygnus located about 8,000 light years. Stewart Sharpless cataloged this Ha region in his 1959 catalog of Ha emission nebula. Located near the center of the nebula are two bright yellow stars and a very bright blue-white star called HDE 227018. This area is also home to Cygnus X-1, a microquasar which is the bright star half the distance from the nebula to the edge of the right side of the image. This is one of the most intense X-ray sources measurable from Earth, probably attributable to the presence of a black hole.
I have seen many incredible SHO image of this recently so me trying to be different did in Ha and OIII. I might have picked up more detail with sulfur but I did get a lot of detail in the nebula itself. This image also is far superior from the image I took of back in 2018. It was one of the last images I did with my old setup (Orion ED80 and modified Canon T3i/600D).
Imaging this time was very difficult and I had to toss 2 or 3 days worth of data due to the western forest fires. I thought I had decent data but the skies were too cruddy and so after examining the subframes closely I saw that they were very poor.
Dates: 9-11-20, 9-12-20, 9-14-20, 9-15-20, 9-16-20, 9-18-20, 9-19-20, 9-18-20
https://kurtzeppetello.smugmug.com/
http://astroquest1.blogspot.com/
http://youtube.com/c/AstroQuest1
Home Monroe, CT
Dates: 9-11-20, 9-12-20, 9-14-20, 9-15-20, 9-16-20, 9-18-20, 9-19-20, 9-18-20
Camera: ZWO ASI1600MM-Pro
Telescope: Astro-Tech AT115EDT 115mm Refractor Telescope
Barlow: None
Focal Length: 805
f/7
Focal Reducer: AstroTech Field Flatterner/Focal Reducer
Mount: Orion Sirius
Filter Wheel: ZWO EFW 8 x 1.25"
Filter: ZWO Ha, OIII, R, G, B
Focuser: ZWO EAF
Autoguiding: ASI120 Mini attached to an Agena 50mm Guide Scope/ZWO 60mm Guidescope
Exposure: Ha 67 x 240s, OIII 88 x 240s, R 19 x 90, G 13 x 90, B 19 x 90
Gain: 139
Offset 21
Temp: 15 C
Processing: APT, NINA, PixInsight, Photoshop.
https://kurtzeppetello.smugmug.com/
http://astroquest1.blogspot.com/
http://youtube.com/c/AstroQuest1
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