Celestial hemisphere:  Northern  ·  Constellation: Monoceros (Mon)  ·  Contains:  NGC 2239  ·  NGC 2244  ·  NGC 2252  ·  Rosette nebula  ·  The star 12Mon
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Rosette Nebula from urban back yard, Scott Denning
Rosette Nebula from urban back yard
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Rosette Nebula from urban back yard

Getting plate-solving status, please wait...
Rosette Nebula from urban back yard, Scott Denning
Rosette Nebula from urban back yard
Powered byPixInsight

Rosette Nebula from urban back yard

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Description

Rosette Nebula in Monoceros January 16-18 2018

27x900s + 29x450s = 10.375 hours of total exposure

some RA oscillation and maybe polar misalignment

Subframe selected & weighted by SNR

Calibrated w/40 flats, master bias & dark

Cosmetic corrected, debayered, aligned on highest SNR frames

Two separate stacks (450 & 900) with linear fit rejection

HDR Composition

MLT & SCNR denoise in linear state

Masked Stretch bkgd=0.15, 150 iterations

Range selection and TGV Denoise

Clone to make separate starless and original images

Removal of stars:

* star mask, MLT w/4 layers deleted, 3 applications

* star mask, Morphological Transform morph selection = 0.2

Aggressive curve transform to stretch nebula in starless image

Heavy color saturation of original image

PixelMath combination of original & starless

Final curve adjustment

Dynamic crop

Comments

Revisions

  • Rosette Nebula from urban back yard, Scott Denning
    Original
  • Final
    Rosette Nebula from urban back yard, Scott Denning
    B

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Sky plot

Histogram

Rosette Nebula from urban back yard, Scott Denning