Celestial hemisphere:  Northern  ·  Constellation: Monoceros (Mon)  ·  Contains:  NGC 2239  ·  NGC 2244  ·  NGC 2252  ·  Rosette nebula  ·  The star 12Mon
Rosette nebula experiments : ASI224MC + Samyang 135mm, Ben
Rosette nebula experiments : ASI224MC + Samyang 135mm
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Rosette nebula experiments : ASI224MC + Samyang 135mm

Rosette nebula experiments : ASI224MC + Samyang 135mm, Ben
Rosette nebula experiments : ASI224MC + Samyang 135mm
Powered byPixInsight

Rosette nebula experiments : ASI224MC + Samyang 135mm

Equipment

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Acquisition details

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Description

First pic with ASI224MC + Samyang 135mm

- ASI224MC is really nice. The amp glow can be greatly reduced with darks.

- ASI224 image is only 1300 pixels large. Ha extracted from red channel is about 650 pixels large. I drizzled the 3 bands to get 1300 back. Mono camera needed :p

- guiding would be nice for this setup (work in progress)

- a few Sii only (clouds came)

I made 4 different band blending and I applied the same processing for each pic.

Original) stacked Ha

B) stacked Oiii

C) stacked Sii

D) SHO

R = Sii

G = Ha

B = Oiii

E) HOS

R = Ha

G = Oiii

B = Sii

F) HOO alternative

R = 0.76 * Ha + 0.24 * Sii

G = Oiii

B = 0.85 * Oiii + 0.15 * Ha

G) HOO "classic"

R = Ha

G = 0.65 * Oiii + 0.35 * Ha

B = 0.8 * Oiii + 0.3 * Ha

Final) Reprocessed without Sii (too weak) and a bit sharper :

R = Ha

G = 0.9 Ha + 0.1 Oiii

B = Oiii

Comments

Revisions

  • Rosette nebula experiments : ASI224MC + Samyang 135mm, Ben
    Original
  • Rosette nebula experiments : ASI224MC + Samyang 135mm, Ben
    B
  • Rosette nebula experiments : ASI224MC + Samyang 135mm, Ben
    C
  • Rosette nebula experiments : ASI224MC + Samyang 135mm, Ben
    D
  • Rosette nebula experiments : ASI224MC + Samyang 135mm, Ben
    E
  • Rosette nebula experiments : ASI224MC + Samyang 135mm, Ben
    F
  • Rosette nebula experiments : ASI224MC + Samyang 135mm, Ben
    G
  • Final
    Rosette nebula experiments : ASI224MC + Samyang 135mm, Ben
    I

I

Description: Reprocessed

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Sky plot

Sky plot

Histogram

Rosette nebula experiments : ASI224MC + Samyang 135mm, Ben

In these public groups

Samyang 135 f/2