Messier 45 (The Pleiades) (Ian Stephenson)

Celestial hemisphere: Northern · Constellation: Taurus (Tau) · Contains: Extremely wide field

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Messier 45 (The Pleiades)

Revision title: Reworked with new Darks

Powered byPixInsight

Messier 45 (The Pleiades)

Revision title: Reworked with new Darks

This is a shot I have attempted annually for 10 years with limited success. This attempt I think is as good as I am ever going to get. It is a stack of 145 x 60 second subs from a total of 345 collected between 11 and 23 January 2023. The target presents annually from my viewpoint for around 2 weeks, it is relatively low and is east of the meridian in a light polluted sky.

The Redcat 51 was paired with the ASI 183 MC Pro (cooled only to +5'C and no filters) with the AVX mount. CPWI, SGP and PHD2 worked very well together which made data collection a lot easier than I had expected. This is the first time I have guided with the AVX; my primary imaging rigs are both Software Bisque and I have limited experience of PHD. I used my normal Pixinsight workflow for processing the data with no 'polishing' being necessary in Photoshop. I used RC Blur and Noise Xterminator but steered away from using RC Star Xterminator because I noticed significant amp glow breakthrough even though Dark frames were used in WBPP - (yet to be diagnosed). I cropped the image to remove residual amp glow.

Original
Final
B

B

Title: Reworked with new Darks

Description: I had to overcrop the first revision because of Amp Glow shine through. I reprocessed the data with new Dark frames and this cleared the problem allowing a more proportioned full frame result.

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Southern Hemisphere Astro

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Status	Advanced success
Started	...
Astrometry.net job	7070542
PixInsight job	2FSLMB1BQKA4GF62JFPLO7GBYODGE1UV
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	03h46m28s.50
RA (top/left)	03h52m18s.20
RA (top/right)	03h39m33s.68
RA (bottom/right)	03h40m44s.51
RA (bottom/left)	03h53m17s.44

Dec (center)	+24°12′07″.7
Dec (top/left)	+25°20′36″.4
Dec (top/right)	+24°58′21″.9
Dec (bottom/right)	+23°02′48″.0
Dec (bottom/left)	+23°24′42″.7

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Messier 45 (The Pleiades)

Revision title: Reworked with new Darks

Messier 45 (The Pleiades)

Revision title: Reworked with new Darks

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Messier 45 (The Pleiades)

Revision title: Reworked with new Darks

Messier 45 (The Pleiades)

Revision title: Reworked with new Darks

Equipment

Acquisition details

Description

Comments

Revisions

B

Sky plot

Histogram

In these public groups

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