Hemisphere:  Northern  ·  Constellation: Monoceros (Mon)  ·  Contains:  15 S Mon  ·  Christmas Tree Cluster  ·  NGC 2264  ·  Sh2-273  ·  The star 15Mon
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Cone Nebula (HSO), 



    
        

            Linda
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Getting plate-solving status, please wait...
Cone Nebula (HSO), 



    
        

            Linda
Powered byPixInsight

Acquisition details

Dates:
Jan. 20, 2021 ·  Jan. 21, 2021 ·  Jan. 22, 2021 ·  Jan. 29, 2021 ·  Feb. 23, 2021 ·  March 2, 2021 ·  March 3, 2021 ·  March 5, 2021
Frames:
Astrodon H-alpha 3nm: 25×600(4h 10′) -25°C bin 1×1
Astrodon OIII 3nm: 24×600(4h) -25°C bin 1×1
Astrodon SII 3nm: 29×600(4h 50′) -25°C bin 1×1
Integration:
13h
Darks:
25
Flats:
5
Bias:
25
Avg. Moon age:
13.65 days
Avg. Moon phase:
71.39%

RA center: 06h40m53s.62

DEC center: +09°4556.7

Pixel scale: 1.103 arcsec/pixel

Orientation: 179.012 degrees

Field radius: 0.806 degrees

More info:Open 

Resolution: 4050x3363

File size: 1.1 MB

Locations: Mathias, Mathias, WV, United States

Data source: Own remote observatory

Remote source: Non-commercial independent facility

Description

This is an HSO presentation of the Cone Nebula. I started working on this when I was acquiring data for M45 when the moon was in the sky.

Processing steps:

for each master:

Mure Denise

for the combination:

channel combination (HSO)

linear fit

tgv denoise

histogram transformation

local histogram equalization (two different scales)

curves for contrast and a touch more saturation

Dark Structure Enhance

Adam Block's star de-emphasis

multiscale linear transformation (sharpening)

Comments

Revisions

  • Cone Nebula (HSO), 



    
        

            Linda
    Original
  • Final
    Cone Nebula (HSO), 



    
        

            Linda
    C

C

Description: Went back and re-applied some processing steps to avoid emphasizing some halos around stars.

Uploaded: ...

Sky plot

Sky plot

Histogram

Cone Nebula (HSO), 



    
        

            Linda