Hemisphere:  Northern  ·  Constellation: Coma Berenices (Com)  ·  Contains:  NGC 4565  ·  Needle Galaxy
Getting plate-solving status, please wait...
NGC 4565 in LLRGB, 



    
        

            Tom Gray
NGC 4565 in LLRGB
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NGC 4565 in LLRGB

Getting plate-solving status, please wait...
NGC 4565 in LLRGB, 



    
        

            Tom Gray
NGC 4565 in LLRGB
Powered byPixInsight

NGC 4565 in LLRGB

Technical card

Imaging telescopes or lenses: Meade 2080 SCT 8" LX5

Imaging cameras: Meade DSI 3 Pro

Mounts: Meade Fork mount w/wedge Meade

Guiding telescopes or lenses: Meade 8x50mm Finder/Guider

Guiding cameras: Orion Starshoot autoguider

Focal reducers: Meade f6.3 focal reducer/field flattener Meade 0.63x Reducer

Software: Han Klein ASTAP v0.915  ·  SiliconFields / Ivo Jager Startools v1.7  ·  PHD2 Guiding V 2.6  ·  Meade Envisage V4.10

Filters: Meade RGB-IR Cut 1.25"

Accessory: Bahtinov Mask  ·  Homemade ST4 autoguider  ·  Finder guider 8x50 Finder Scope


Dates:April 3, 2021April 10, 2021

Frames:
Meade Blue Filter for CCD: 21x120" bin 1x1
Meade Green Filter for CCD: 17x120" bin 1x1
Meade RGB-IR Cut 1.25": 48x120" bin 1x1
Meade Red Filter for CCD: 15x120" bin 1x1

Integration: 3.4 hours

Darks: ~48

Flats: ~25

Avg. Moon age: 24.62 days

Avg. Moon phase: 31.33%

Bortle Dark-Sky Scale: 4.00


Basic astrometry details

Astrometry.net job: 4401312

RA center: 12h 36' 8"

DEC center: +25° 57' 32"

Pixel scale: 0.921 arcsec/pixel

Orientation: 356.904 degrees

Field radius: 0.196 degrees


Resolution: 1242x905

Locations: Home 'observatory' (Bortle 5), Derbyshire, United Kingdom

Data source: Backyard

Description

Given the issues I have been having with adding RGB colour to my luminance frames recently, I was so relieved to see that my attempts to bring this galaxy alive, have been largely successful. I did not have problems with my flats; however, messing with the spacing between my camera and f6.3 focal reducer has unfortunately just clipped the top of this fine galaxy and 'severed' NGC 4562, which is a shame.

Captured in Envisage, aligned and stacked in Nebulosity, and processed in Startools, using the default workflow. Colour rendition was straightforward, using a scientific colour constancy, and isolation to push back the noise and remaining gradients. A little healing to some artefacts remaining from my flat frames, et voila.

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