SNR G126.2+01.6 - It's Dim!

Supernova remnant SNR G126.2+01.6 is located in the constellation Cassiopeia not very far from other popular objects such as IC 63 - The Ghost of Cassiopeia. I am always looking for uncommon objects to investigate with my camera and saw that Goran Nilson (https://www.astrobin.com/mj605m/) had done a wonderful job on this with his dual RASA setup. There are only a handful of other images of SNR G126 on Astrobin (all of which are better than mine) for a very good reason - this object is faint, especially in OIII. If you do decide to go after this one, give yourself plenty of nights! Processing was really tough, especially trying to 'tease' out the oxygen. Fortunately, PixInsight and Photoshop make it possible. I thought the stars came out well so the only reduction I did was with BlurXTerminator.

Higher Quality:
https://www.astrobin.com/medzn4/?nc=collection&nce=712

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SNR G126.2+01.6

Dates: 9-8-24, 9-9, 9-10, 9-11, 9-12, 9-14, 9-15
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 133 x 300, OIII 143 x 300, R 39 x 90, G 37 x 90, B 38 x 90 (25h 51')
Gain: 139
Offset 20
Sensor Temp: 0 C
Processing: NINA, PixInsight, Photoshop, BlurXTerminator, StarXTerminator, NoiseXTerminator, GraXpert, Bill Blanshan Color Masks, Bill Blanshan Stretching, Bill Blanshan Star Reduction.

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Comet C/2023 A3

This is my quickly acquired image of Comet 2023 A3 Tsuchinshan-ATLAS taken on the evening of October 16th 2024 around 7pm. It was not visible with the naked eye from the St John's Cemetery but was with my camera. I hoped to get the ground in the image for perspective but I did not have time to wait so I just went to as much of the comet as possible. The tail was enormous at approximately 18 million miles (29 million km).

As reported by Adam Block, the thin part that points towards the horizon is due to previously released dust in its orbit. The comet orbits on a plane and we are seeing the plane edge-on.

Comet 2023 A3 Tsuchinshan-ATLAS

Date: 10-16-24

Camera: Canon T3i/600D
Telescope: Canon EF 50mm f/2.8L Lens
Barlow: None
Focal Length: 50mm
f/2.8
Focal Reducer: none
Mount: iOptron SkyGuider Pro

Filter: Astronomik OMB Clip-in
Exposure: 40 x 5s
ISO: 800
Temp: 18 C
Processing: PixInsight, Photoshop