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M45 Pleiades, 



    
        

            Monkeybird747
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M45 Pleiades

Technical card

Imaging telescopes or lenses: TEC APO140ED

Imaging cameras: QHYCCD QHY 16200A

Mounts: Astro-Physics Mach1 GTO CP3

Guiding cameras: Starlight Xpress Lodestar Autoguider X2

Focal reducers: Astro-Physics QUAD TCC 0.72x

Software: CCDWare PemPro  ·  PHD Labs PHD 2 Guiding  ·  Starkeeper Software Voyager  ·  Pixinsight

Filters: Chroma Green 2" Mounted  ·  Chroma Blue 2" Mounted  ·  Chroma Red 2" Mounted  ·  Chroma Luminance 2" Mounted


Dates:Nov. 24, 2019Nov. 25, 2019

Frames:
Chroma Blue 2" Mounted: 43x180" bin 1x1
Chroma Green 2" Mounted: 58x180" bin 1x1
Chroma Luminance 2" Mounted: 138x120" bin 1x1
Chroma Red 2" Mounted: 70x180" bin 1x1

Integration: 13.2 hours

Avg. Moon age: 27.75 days

Avg. Moon phase: 3.86%

Bortle Dark-Sky Scale: 6.00

Mean SQM: 19.00


Astrometry.net job: 3086885

RA center: 3h 46' 33"

DEC center: +24° 8' 52"

Pixel scale: 1.735 arcsec/pixel

Orientation: -85.335 degrees

Field radius: 1.210 degrees


Resolution: 3938x3118

Data source: Backyard

Description

This was one of my first DSOs, and I've been wanting to revisit it since trying, and failing miserably, to image it a few years ago. It was more difficult than I thought to process, since there is little to no clear view of background sky.

In the final full resolution version you can make out IC 349 Barnard's Merope Nebula at about the four o'clock position in the outer edge of Merope's halo. A little smudge of a different blue, but it's there. There is also a cute little edge-on galaxy at the top middle of the frame.

Comments

Author

Monkeybird747
Monkeybird747
License: None (All rights reserved)
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Revisions

    M45 Pleiades, 



    
        

            Monkeybird747
    Original
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    D
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  • Final
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            Monkeybird747
    G
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            Monkeybird747
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G

Description: I think I pushed the data a little to hard on the first few attempts. I didn't like the noise profile, so I started over and ended here. I lost some of the really faint detail, but it is a trade-off for the improved noise level. You can also just make out IC 349 in this version (full resolution), which is a bonus.

Sky plot

Sky plot

Histogram

M45 Pleiades, 



    
        

            Monkeybird747