Celestial hemisphere:  Northern  ·  Constellation: Perseus (Per)  ·  Contains:  10 Per  ·  7 chi Per  ·  Misam  ·  NGC 869  ·  NGC 884  ·  The star 7Per  ·  chi Persei Cluster  ·  h Persei Cluster
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Double Cluster (NGCs 869 & 884) LRGB - 22 Jan 2021, 



    
        

            Geof Lewis
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Double Cluster (NGCs 869 & 884) LRGB - 22 Jan 2021

Getting plate-solving status, please wait...
Double Cluster (NGCs 869 & 884) LRGB - 22 Jan 2021, 



    
        

            Geof Lewis
Powered byPixInsight

Double Cluster (NGCs 869 & 884) LRGB - 22 Jan 2021

Acquisition details

Dates:
Jan. 12, 2021 ·  Jan. 17, 2021 ·  Jan. 21, 2021 ·  Jan. 22, 2021
Frames:
Astronomik Type 2c Blue 1.25": 22×180(1h 6′) -20°C bin 1×1
Astronomik Type 2c Green 1.25": 17×180(51′) -20°C bin 1×1
Astronomik Type 2c Luminance 1.25": 22×180(1h 6′) -20°C bin 1×1
Astronomik Type 2c Red 1.25": 18×180(54′) -20°C bin 1×1
Integration:
3h 57′
Darks:
20
Flats:
20
Flat darks:
20
Avg. Moon age:
12.46 days
Avg. Moon phase:
35.24%

RA center: 02h20m35s.20

DEC center: +57°0948.3

Pixel scale: 1.913 arcsec/pixel

Orientation: -178.734 degrees

Field radius: 1.077 degrees

More info:Open 

Resolution: 3253x2421

File size: 3.5 MB

Data source: Backyard

Description

This is my first image of 2021 and my first DSO since Aug 2020. It is also the first time I've imaged this target for 6 years and the first time with a mono CCD camera and LRGB filters. I had a lot of issues with poor seeing, not helped by me forgetting to turn on the dew straps during 2 sessions, so it took me several nights over a couple of weeks to collect even this limited data. Still it was good to be imaging a DSO again after a long hiatus whilst I concentrated on the 2020 Mars apparition.

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Revisions

  • Double Cluster (NGCs 869 & 884) LRGB - 22 Jan 2021, 



    
        

            Geof Lewis
    Original
  • Double Cluster (NGCs 869 & 884) LRGB - 22 Jan 2021, 



    
        

            Geof Lewis
    C
  • Final
    Double Cluster (NGCs 869 & 884) LRGB - 22 Jan 2021, 



    
        

            Geof Lewis
    D

C

Description: Very light pass of Topaz DeNoise AI

Uploaded: ...

D

Description: Levels to give stars more sparkle and star size reduction to reduce smaller stars

Uploaded: ...

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Double Cluster (NGCs 869 & 884) LRGB - 22 Jan 2021, 



    
        

            Geof Lewis

In these collections

Clusters - Open