IC 63 - Ghost of Cassiopeia

Located 550 light-years away in Cassiopeia IC 63 and the surrounding objects such as IC 59 and Sh2-185 are reflection and emission nebulae composed of gas and dust. Energy in the form of ultraviolet radiation from the nearby but not shown, blue-giant star Gamma Cassiopeiae (a.k.a. Navi), excites the hydrogen gas which inturn causes the red glow. The blue colored regions are from reflected light off the dust.

I like how IC 63 seems to be pointing upwards towards Gamma Cassiopeiae (not shown) wanting to be fed more energy so it can continue to glow. Even though I love stars and imaged it with Gamma Cass in the field of view, I cropped it out for a number of reasons. Also, I captured ~9 hrs of OIII but in hindsight probably would have been better off with more RGB data instead as the natural blue came out much more than the oxygen. IC 59 in the upper left had the most blue signal. I did blend the OIII in as the background was somewhat smoother with it added in. As usual I struggle with how much star reduction to do and I did more than I typically do, however, I am sure most people would be more aggressive.

Dates: 9-15-24, 9-19, 9-20, 9-22, 10-3, 10-5, 10-6, 10-7, 10-8, 10-9, 10-15, 10-20, 10-21, 10-22

Higher Quality:
https://www.astrobin.com/j3n02i/?nc=collection&nce=712

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IC 63 - Ghost of Cassiopeia
Dates: 9-15-24, 9-19, 9-20, 9-22, 10-3, 10-5, 10-6, 10-7, 10-8, 10-9, 10-15, 10-20, 10-21, 10-22
Camera: ZWO ASI1600MM-Pro
Telescope: Astro-Tech AT115EDT 115mm Refractor Telescope
Barlow: None
Focal Length: 805mm (644mm w/ FR)
f/7
Focal Reducer: 0.8x AstroTech Field Flatterner/Focal Reducer
Mount: Orion Sirius
Filter Wheel: ZWO
EFW 8 x 1.25"
Filter: Antlia Ha, OIII; ZWO R, G, B
Focuser: ZWO EAF
Autoguiding: ASI120 Mini attached to an Agena 50mm Guide Scope/ZWO 60mm Guidescope
Exposure: Ha 157 x 300, OIII 109 x 300, R 41 x 90, G 43 x 90, B 41 x 90 (25h 20')
Gain: 139
Offset 20
Sensor Temp: 0 C
Processing: NINA, PixInsight, Photoshop, BlurXTerminator, StarXTerminator, NoiseXTerminator, GraXpert, Bill Blanshan Color Masks, Bill Blanshan Stretching, Topaz Denoise.

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http://astroquest1.blogspot.com/
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http://youtube.com/AstroQuest1

VdB30 (2024)

VdB30 is a reflection nebula located somewhere between 1600 and 6900 light-years away in the constellation Camelopardalis. It surrounds a central bright blue supergiant star, Alpha Camelopardalis (Alpha Cam, HD 30614). Although the cloud of gas and dust that surrounds the star is very large, it has a low reflectivity making it hardly noticeable. Another interesting thing about Alpha Cam is it is considered a runaway star having a reported speed between 60 and 4200 km/second. Runaway stars have abnormally high speeds relative to the interstellar medium which were set into motion by a supernova explosion of a companion star.

I barely captured the reflection nebula and was not really expecting to catch much of it anyway so the question why I attempted to go after this object is the first place. The answer is that it was a filler. We had several clear nights last month and I was going after other targets which went behind trees after a few hours and wanted to keep imaging. VdB30 may be a reflection nebula but it sits in a region with a faint hydrogen emission nebula. This made the vdB30 a good choice because I could collect data on moonlight nights well. I really like how the Ha arcs around vdB30 and forms a boomerang appearance. I also collected OIII data, however, there was not much signal and the HOO version was very similar to the HaRGB version. I did use it as the background was a bit smoother and I did a small blend of RGB around Alpha Cam.


Dates: 9-3-24, 9-4, 9-5, 9-7, 9-8, 9-9, 9-10, 9-11, 9-12, 9-13, 9-14, 9-15, 10-5

Higher Quality:
https://www.astrobin.com/4qmcqe/?nc=collection&nce=712

https://www.instagram.com/astroquest1/
http://astroquest1.blogspot.com/
https://www.astrobin.com/users/kurtzepp/collections/
http://youtube.com/AstroQuest1

VdB30 (2024)

Dates: 9-3-24, 9-4, 9-5, 9-7, 9-8, 9-9, 9-10, 9-11, 9-12, 9-13, 9-14, 9-15, 10-5

Camera: ZWO ASI1600MM-Pro
Telescope: Astro-Tech AT115EDT 115mm Refractor Telescope
Barlow: None
Focal Length: 805mm (644mm w/ FR)
f/7
Focal Reducer: 0.8x AstroTech Field Flatterner/Focal Reducer
Mount: Orion Sirius
Filter Wheel: ZWO
EFW 8 x 1.25"
Filter: Antlia Ha, OIII; ZWO R, G, B
Focuser: ZWO EAF
Autoguiding: ASI120 Mini attached to an Agena 50mm Guide Scope/ZWO 60mm Guidescope
Exposure: Ha 213 x 300, OIII 97 x 300, R 53 x 90, G 49 x 90, B 54 x 90 (29h 44')
Gain: 139
Offset 20
Sensor Temp: 0 C
Processing: NINA, PixInsight, Photoshop, BlurXTerminator, StarXTerminator, NoiseXTerminator, GraXpert, Bill Blanshan Color Masks, Bill Blanshan Stretching, Topaz Denoise.


https://www.instagram.com/astroquest1/
http://astroquest1.blogspot.com/
https://www.astrobin.com/users/kurtzepp/collections/
http://youtube.com/AstroQuest1