Comet 73P/Schwassmann–Wachmann 3 zooming past the NGC 6723 (Oct 2022) (Alexandr Zaytsev)

Comet 73P/Schwassmann–Wachmann 3 zooming past the NGC 6723 (Oct 2022)

Link: https://coalsack.online/chilescope/C73P_T345_Oct2022_3h55m_a6_at.jpg

Observing Comet 73P/Schwassmann–Wachmann 3 (main body) [1] flying tail forward along the border of Sgr and CrA constellations past NGC 6723 globular cluster on Oct 23, 2022 - captured remotely using two instruments of ChileScope observatory in parallel:

Telescope #3 (ASA-N D = 0.5m f/3.8, FLI ProLine 16803) - original image revision and revision B: panorama of 4x 1200s L exposures (no stacking).
Telescope #5 (Officina Stellare Riccardi-Honders RH200 D = 200mm f/3, FLI Microline 16200) - revisions C and D: panorama of 2x 600s + 1x 1200s L exposures (with comet sitting on the 1200s frame, no stacking as well).

[1] http://aerith.net/comet/catalog/0073P/2022.html

Image revisions B and D are manually annotated (for original revision and revision C respectively) to show the expected shift of the comet during the exposure and also indicating two other moving bodies detected in the original image revision.

Both are likely unrelated to the 73P/Schwassmann–Wachmann cometary train, as their apparent shift during the exposure was significantly smaller than that of the main body (the reference length for the shift of the main body during the exposure calculated using Starry Night 8 Pro Plus is shown next to the circles identifying those two objects).

A wider view to the area obtained earlier using Chilescope T4 instrument (in RGB) is available under [2]:

[2] https://www.astrobin.com/5r772b/

B

Title: Annotated version of the original version of the image

Uploaded: ...

C

Title: Wider angle view to the same scene using Chilescope T5 instrument (3 frame panorama)

Uploaded: ...

D

Title: Annotated version of the revision C of the image

Uploaded: ...

E

Title: Summary of all the imaging session results done for Comet 73P/Schwassmann–Wachmann 3 in Oct 2022

Description: (The uploaded image is scaled down to 95% of original resolution to fit under the AstroBin Mpx limit. The image by the link is in full original resolution.)

Uploaded: ...

F

Title: One of the images frames from Chilescope T3 instrument panorama annotated using PIxInsight tools

Description: (Highlighting PGC galaxies (mostly) visible and easily identifiable the field in the vicinity of the main body.)

Uploaded: ...

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