Sombrero galaxy (Brian Boyle)

Celestial hemisphere: Southern · Constellation: Virgo (Vir) · Contains: HD110086 · M 104 · NGC 4594 · Sombrero Galaxy

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Sombrero galaxy

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Sombrero galaxy

My new 0.67x focal reducer finally arrived last week, after being stuck for 2months at Frankfurt airport. I was keen to try it out, but the weather has somewhat sub-optimal of late and it took 7 days of imaging just to collect 3hours of decent data. The seeing conditions weren't bad (for this place) - around 3-4 arcsecs - but I still went for my big pixel OSC (ASI2400MC) rather than the 1600MM. On reflection, I should probably have gone for the latter. Even with a lower QE, I suspect I may have got better colours with the mono camera. Nevertheless, I do find an OSC has a logistical advantage when dealing with unpredictable weather, as you can always make a colour image at any point.

While the image is almost certainly under-cooked and under-resolved, I am happy with the performance of my 0.67x reducer - finally giving me a sweet spot of 1080mm focal length - well matched to my 4arcsec site. I shall return to dance on this Sombrero next year.

Original
B
C
D
Final
E

B

Description: A wider field version of the same image. Not sure which I prefer.

Uploaded: ...

C

Description: With all the discussion in the Forum about Topaz, I thought I would give it a try. Works pretty well on lunar images, but not generally on DSO images. This might be an exception.

Uploaded: ...

D

Description: Couldn't re-observe during 2023 (so far) , so thought I would re-process some old data from 2021.

Uploaded: ...

New Zealand Astrophotography
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Status	Advanced success
Started	...
Astrometry.net job	7416144
PixInsight job	PJFS0NP3RHAN3ZA4Y4CM6TYLNRZJUM4U
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	12h39m59s.99
RA (top/left)	12h40m56s.46
RA (top/right)	12h39m01s.32
RA (bottom/right)	12h39m03s.38
RA (bottom/left)	12h40m58s.75

Dec (center)	-11°37′30″.8
Dec (top/left)	-11°27′40″.4
Dec (top/right)	-11°28′31″.3
Dec (bottom/right)	-11°47′20″.1
Dec (bottom/left)	-11°46′29″.10

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Sombrero galaxy

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