Hemisphere:  Northern  ·  Constellation: Draco (Dra)  ·  Contains:  NGC 6214  ·  NGC6214  ·  PGC140648  ·  PGC2682393  ·  PGC2683626  ·  PGC2684772  ·  PGC2684999  ·  PGC2685316  ·  PGC2686037  ·  PGC2686358  ·  PGC2687533  ·  PGC2688026  ·  PGC2688357  ·  PGC3086473  ·  PGC58461  ·  PGC58586  ·  PGC58587  ·  PGC58680  ·  PGC84762  ·  V0553 Dra
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Abell 2218 Galaxy Cluster, 



    
        

            Albert van Duin
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Abell 2218 Galaxy Cluster

Acquisition type: Electronically-Assisted Astronomy (EAA, e.g. based on a live video feed)

Imaging telescopes or lenses: Home made 400mm F/4 Newtonian

Imaging cameras: Moravian G3 16200

Guiding telescopes or lenses: Home made 400mm F/4 Newtonian

Guiding cameras: Lodestar

Focal reducers: TS N-AGK3 coma corrector

Software: PixInsight  ·  DC-3 Dreams PinPoint Astrometric Engine  ·  FocusMax V4  ·  DC-3 Dreams ACP Observatory Control Software  ·  Diffraction Limited MaximDL 6 Pro  ·  http://www.projectpluto.com/ Guide 9.0

Filters: Astrodon LRGB Tru-Balance E-Series Gen 2 2inch


Dates:May 15, 2020

Frames: 44x600"

Integration: 7.3 hours

Avg. Moon age: 22.98 days

Avg. Moon phase: 41.19%


Astrometry.net job: 3535599

RA center: 16h 35' 54"

DEC center: +66° 12' 5"

Pixel scale: 0.679 arcsec/pixel

Orientation: 1.758 degrees

Field radius: 0.547 degrees


Resolution: 4524x3624

Locations: Beilen Observatory B85, Beilen, Drenthe, Netherlands

Data source: Backyard

Description

This is a 4 hour Luminance only integration of Abell 2218 in Draco. This galaxy cluster is famous for the gravitational lensing that is visible in the Hubble Space Telescope image.

Collimation was a bit off unfortunately, but the three brightest parts of the lensing are already faintly visble (at full resolution) around PGC140648. (even better in Version C)
I want to try this again when the telescope is in perfect condition and when the seeing is good.

Version C is a resampled and registered comparison with the famous Hubble Space Telescope image

A time lapse of the observing session

Comments

Revisions

  • Abell 2218 Galaxy Cluster, 



    
        

            Albert van Duin
    Original
  • Abell 2218 Galaxy Cluster, 



    
        

            Albert van Duin
    C
  • Final
    Abell 2218 Galaxy Cluster, 



    
        

            Albert van Duin
    D

C

Description: Comparison with Hubble image

Uploaded: ...

D

Description: 20 more frames, a bit less noise...

Uploaded: ...

Sky plot

Sky plot

Histogram

Abell 2218 Galaxy Cluster, 



    
        

            Albert van Duin