Celestial hemisphere:  Northern  ·  Constellation: Lyra (Lyr)  ·  Contains:  IC 1296  ·  M 57  ·  NGC 6720  ·  Ring Nebula

Image of the day 07/25/2021

Getting plate-solving status, please wait...
M57 with outer shells (HaO3O3 with RGB stars), Andreas Eleftheriou
M57 with outer shells (HaO3O3 with RGB stars), Andreas Eleftheriou

M57 with outer shells (HaO3O3 with RGB stars)

Image of the day 07/25/2021

Getting plate-solving status, please wait...
M57 with outer shells (HaO3O3 with RGB stars), Andreas Eleftheriou
M57 with outer shells (HaO3O3 with RGB stars), Andreas Eleftheriou

M57 with outer shells (HaO3O3 with RGB stars)

Equipment

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Acquisition details

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Description

This was probably the most demanding image processing I experienced! The difference in the Dynamic Range of the core and the outer shell is enormous. I was experimenting with the HDRM tool of PI with several masks in order to unveil the outer shells without exploding the saturation of the core and the stars. After several days of processing I will pause and revisit this another time :-)

Revision A: HaO3O3 image with RGB stars (mouse over for zoom)
Revision B: RGB image (mouse over plate solved)
Revision C: HaO3O3 zoom/cropped/resampled (mouse over for original fov)

Comments

Revisions

    M57 with outer shells (HaO3O3 with RGB stars), Andreas Eleftheriou
    Original
    M57 with outer shells (HaO3O3 with RGB stars), Andreas Eleftheriou
    B
  • Final
    M57 with outer shells (HaO3O3 with RGB stars), Andreas Eleftheriou
    C

B

Description: RGB image

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C

Description: zoom/resampled

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Sky plot

Sky plot

Histogram

M57 with outer shells (HaO3O3 with RGB stars), Andreas Eleftheriou