Getting plate-solving status, please wait...
Messier 57, Daniel.P

Messier 57

Equipment

Loading...

Acquisition details

Loading...

Description

The B version is a zoom on the ing Nebulae with deconvolution applied.

Picture taken over 2 nights at two different focal length :

- 8 april : using the 0.7x focal reducer :10 x 240s

- 9 april at FD=10 ; 29 x 240 s

The frames at FD = 10 are not background limited : the read out noise is dominant.

The two pictures where processed separatly as follows :

Pre-processing done in Pixinsight :

- overscan area offset correction

- bias correction

- flat correction

- hot pixel correction

- debayer

- registration

- stack

Processing done in Pixinsight :

- color calibration using stars

- residual sky background substraction

Then the two resulting images where

- aligned using the FD=10 one as reference

- added using pixelmath

- converted to non linear image

- the nebulae was corrected using curves transformation

- color sat applied

- blue adjusted

Final image :

- jpeg calibration done in Mac Photo

Comments

Revisions

  • Messier 57, Daniel.P
    Original
  • Final
    Messier 57, Daniel.P
    B

Histogram

Messier 57, Daniel.P