Celestial hemisphere:  Northern  ·  Constellation: Lyra (Lyr)  ·  Contains:  IC 1296  ·  M 57  ·  NGC 6720  ·  PK063+13.1  ·  Ring nebula  ·  Ring nebula in Lyra
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M57 with outer outer halo. RGB enhanced Ha and OIII, Pat Rodgers
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M57 with outer outer halo. RGB enhanced Ha and OIII

Getting plate-solving status, please wait...
M57 with outer outer halo. RGB enhanced Ha and OIII, Pat Rodgers
Powered byPixInsight

M57 with outer outer halo. RGB enhanced Ha and OIII

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Description

The RGB is from 2016 with recent NB subs added to all 3 channels. The outer halo is easily seen but there is a touch of the faint outer, outer halo revealed. The OIII was taken in my limited astro dark and the Ha mainly in nautical darkness or, when the Moon was present.

The images are over stretched to show the 2nd halo.

Rev A: The RGB 2016.

Rev B: The Ha stack with the STF stretch applied after a de-convolution, DBE, etc.

Rev C: The HaRGB

Rev D: A HaR-OIIIG-OIIIB enhanced image. ( my favourite.)

Rev E: is a 50/50 mix of A and C. Makes M57's core better but lessens the faint stuff

Comments

Revisions

  • M57 with outer outer halo. RGB enhanced Ha and OIII, Pat Rodgers
    Original
  • M57 with outer outer halo. RGB enhanced Ha and OIII, Pat Rodgers
    B
  • M57 with outer outer halo. RGB enhanced Ha and OIII, Pat Rodgers
    D
  • Final
    M57 with outer outer halo. RGB enhanced Ha and OIII, Pat Rodgers
    E
  • M57 with outer outer halo. RGB enhanced Ha and OIII, Pat Rodgers
    F

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M57 with outer outer halo. RGB enhanced Ha and OIII, Pat Rodgers

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UK Astro-Imaging