Hemisphere:  Northern  ·  Constellation: Coma Berenices (Com)  ·  Contains:  Coma Pinwheel  ·  M 99  ·  NGC 4254  ·  Virgo Cluster Pinwheel
Getting plate-solving status, please wait...
M99: Experimenting gradient removal workflow, 



    
        

            Edoardo Luca Radice (Astroedo)
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M99: Experimenting gradient removal workflow

Getting plate-solving status, please wait...
M99: Experimenting gradient removal workflow, 



    
        

            Edoardo Luca Radice (Astroedo)
Powered byPixInsight

M99: Experimenting gradient removal workflow

Equipment

Imaging Telescopes Or Lenses
C9.25
Imaging Cameras
Moravian Instruments G3-16200 Mark II
Mounts
10 Micron GM1000 HPS
Filters
Baader Planetarium G 2" · Baader Planetarium R 2" · Baader Planetarium B 2" · Baader Planetarium Baader 1,25" L
Software
Seqence Generator Pro · Pixinsight
Guiding Cameras
10Micron HPS System

Acquisition details

Dates:
April 15, 2020
Frames:
Baader Planetarium B 2": 15x300" (1h 15') bin 1x1
Baader Planetarium G 2": 13x300" (1h 5') bin 1x1
Baader Planetarium L 2": 61x300" (5h 5') bin 1x1
Baader Planetarium R 2": 13x300" (1h 5') -25C bin 1x1
Integration:
8h 30'
Darks:
30
Flats:
20
Flat darks:
20
Bias:
50
Avg. Moon age:
22.66 days
Avg. Moon phase:
44.59%
Bortle Dark-Sky Scale:
7.00
Mean SQM:
18.70

RA center: 12h18m51s.940

DEC center: +14°2424.11

Pixel scale: 0.514 arcsec/pixel

Orientation: 89.682 degrees

Field radius: 0.366 degrees

More info:Open 

Resolution: 4054x3151

Locations: Castenedolo, Castenedolo, Italy

Data source: Backyard

Description

The main goals of this experiment were two:

1) verify if RGB imaging under a light polluted sky (Average SQM 18.5) is possible or not.

2) test the new procedure of gradient removal by Vicent Peris described here

Well

1) it is clearly possible if the target is bright; harder a fainter one.

2) it is a great technique much more superior than other gradient removal routines.

Comments

Revisions

  • Final
    M99: Experimenting gradient removal workflow, 



    
        

            Edoardo Luca Radice (Astroedo)
    Original
  • M99: Experimenting gradient removal workflow, 



    
        

            Edoardo Luca Radice (Astroedo)
    B

B

Description: Plate solved and annotated by Pixinsight

Uploaded: ...

Sky plot

Sky plot

Histogram

M99: Experimenting gradient removal workflow, 



    
        

            Edoardo Luca Radice (Astroedo)