Hemisphere:  Northern  ·  Constellation: Taurus (Tau)  ·  Contains:  16 Tau  ·  17 Tau  ·  19 q Tau  ·  20 Tau  ·  21 Tau  ·  22 Tau  ·  23 Tau  ·  24 Tau  ·  25 eta Tau  ·  26 Tau  ·  27 Tau  ·  28 Tau  ·  Alcyone  ·  Asterope  ·  Atlas  ·  Barnard's Merope Nebula  ·  Celaeno  ·  Electra  ·  IC 349  ·  M 45  ·  Maia  ·  Maia Nebula  ·  Merope  ·  Merope Nebula  ·  NGC 1432  ·  NGC 1435  ·  Pleione  ·  Sterope II  ·  Taygeta  ·  The star Atlas (27Tau)  ·  And 7 more.
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Messier 45 (RGB), 



    
        

            Linda
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Getting plate-solving status, please wait...
Messier 45 (RGB), 



    
        

            Linda
Powered byPixInsight
Imaging Telescopes Or Lenses
Astro-Physics Riccardi-Honders Astrograph 305mm f/3.8
Imaging Cameras
FLI ML16200
Mounts
10Micron GM3000 HPS
Filters
Astrodon Gen2 I-Series Tru-Balance Blue · Astrodon Gen2 I-Series Tru-Balance Green · Astrodon Gen2 I-Series Tru-Balance Red
Software
Open PHD Guiding project PHD2 · Pleiades Astrophoto PixInsight · Starkeeper.IT Voyager
Guiding Telescopes Or Lenses
Stellarvue SV80-3SV
Guiding Cameras
ZWO ASI178MM

Acquisition details

Dates:
Jan. 11, 2021 ·  Jan. 12, 2021 ·  Jan. 13, 2021 ·  March 2, 2021 ·  March 3, 2021 ·  March 4, 2021 ·  March 5, 2021
Frames:
Astrodon Gen2 I-Series Tru-Balance Blue: 139x120" (4h 38') -25°C bin 1x1
Astrodon Gen2 I-Series Tru-Balance Green: 138x120" (4h 36') -25°C bin 1x1
Astrodon Gen2 I-Series Tru-Balance Red: 143x120" (4h 46') -25°C bin 1x1
Integration:
14h
Darks:
50
Flats:
10
Bias:
50
Avg. Moon age:
19.49 days
Avg. Moon phase:
41.92%

RA center: 03h46m53s.74

DEC center: +24°0743.7

Pixel scale: 1.103 arcsec/pixel

Orientation: -0.973 degrees

Field radius: 0.883 degrees

More info:Open 

Resolution: 4500x3600

Locations: Mathias, Mathias, WV, United States

Data source: Own remote observatory

Remote source: Non-commercial independent facility

Description

My second deep sky image was of the Pleiades using a Canon 70-200mm F/2.8 zoom at 200mm. You can find it here. It was less than an hour of data taken from a Bortle 7 sky. I was excited about it at the time but even then I knew I could do better eventually. Now is eventually. This isn't the ultimate in M45 renditions but it's a couple of orders of magnitude better than my first effort and I'm pretty happy about that!

This was taken using some outstanding equipment belonging to a friend with a remote observatory in West Virginia. I started this in January and lost essentially all of February due to bad weather but was able to finish getting some data in March. I was able to get a total of 14 hours almost equally split among red, green and blue.

Processing was relatively straightforward:

on each R, G and B master:

mure denoise

DBE

channel combination

On the combined master:

deconvolution

PCC (had to define a background region of interest to get PCC to neutralize the background)

HT

LHE

CT (contrast and slight color boost)

Adv Sharpening

Adam Block's star reduction

I'm not 100% sure I'm done with processing this one but I think this is a good first cut.

Comments

Sky plot

Sky plot

Histogram

Messier 45 (RGB), 



    
        

            Linda