Hemisphere:  Northern  ·  Constellation: Andromeda (And)  ·  Contains:  M 110  ·  NGC 205
Getting plate-solving status, please wait...
NGC 205 resolved in millions of stars - Completely revised - Must click the 45 MP full frame :-), 



    
        

            Jeffbax Velocicaptor
NGC 205 resolved in millions of stars - Completely revised - Must click the 45 MP full frame :-), 



    
        

            Jeffbax Velocicaptor

NGC 205 resolved in millions of stars - Completely revised - Must click the 45 MP full frame :-)

Getting plate-solving status, please wait...
NGC 205 resolved in millions of stars - Completely revised - Must click the 45 MP full frame :-), 



    
        

            Jeffbax Velocicaptor
NGC 205 resolved in millions of stars - Completely revised - Must click the 45 MP full frame :-), 



    
        

            Jeffbax Velocicaptor

NGC 205 resolved in millions of stars - Completely revised - Must click the 45 MP full frame :-)

Equipment

Acquisition details

Dates:
Sept. 9, 2021
Frames:
600×60(10h)
Integration:
10h
Avg. Moon age:
2.64 days
Avg. Moon phase:
7.68%

Basic astrometry details

Astrometry.net job: 5160269

RA center: 00h40m20s.6

DEC center: +41°4134

Pixel scale: 0.276 arcsec/pixel

Orientation: 355.810 degrees

Field radius: 0.199 degrees

Resolution: 3764x3562

File size: 6.7 MB

Locations: C2PU, Plateau de Calern, France

Description

Hello everyone,

First of all : the final version is croped to keep a reasonable size, please click on the original full version here, otherwise you will miss the image : 

I am quite proud to share this version of NGC 205 (M 110), completely reprocessed from the beginning. The first version is here : https://astrob.in/v17o9v/0/

Since then, this image has been the subject of dozens of hours of work and discussions with the C2PU team and Serge Brunier who produced the data. This is not a tuned version, but a complete new job.

Serge sent me all the images and DOFs on a USB key to make a 32-bit stack with drizzle. This leads to a 60 MP image, at 0,25 arcsec. I also applied a sort on the 12 hours of luminance to keep the best 7 hours (fwhm and roundness). The color layers have also been optimized between the best fwhm and a good SNR. The result is a 1,2" fwhm on the final stack before processing !

We thought the first version could be even better, and stand as one of the best images ever taken from the ground (professional or amateur) of this galaxy.

IMHO it is !

The number of resolved stars is facinating. It looks like the milkyway, but extragalactic ! At the bottom left, the suburbs of M31. I particularly like the warm colors of the magnitude 22 stars of NGC 205 and the blue of those of M31. That was not easy to render correctly.

Enjoy, a million stars up to magnitude 25.

Image slightly reduced after drizzle to 8000 pixels. Clear skies.

JF

Comments

Revisions

  • NGC 205 resolved in millions of stars - Completely revised - Must click the 45 MP full frame :-), 



    
        

            Jeffbax Velocicaptor
    Original
  • NGC 205 resolved in millions of stars - Completely revised - Must click the 45 MP full frame :-), 



    
        

            Jeffbax Velocicaptor
    C
  • Final
    NGC 205 resolved in millions of stars - Completely revised - Must click the 45 MP full frame :-), 



    
        

            Jeffbax Velocicaptor
    D

C

Description: Crop 5 MB

Uploaded: ...

D

Description: Mixed version with David Vernet. Contrast enhanced and more deconvolution

Uploaded: ...

Sky plot

Sky plot

Histogram

NGC 205 resolved in millions of stars - Completely revised - Must click the 45 MP full frame :-), 



    
        

            Jeffbax Velocicaptor