Celestial hemisphere:  Northern  ·  Constellation: Perseus (Per)  ·  Contains:  Double cluster  ·  NGC 869  ·  NGC 884  ·  The star 7Per  ·  The star 8Per
Double Cluster in Perseus - two panel mosaic, Steve Milne
Double Cluster in Perseus - two panel mosaic
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Double Cluster in Perseus - two panel mosaic

Double Cluster in Perseus - two panel mosaic, Steve Milne
Double Cluster in Perseus - two panel mosaic
Powered byPixInsight

Double Cluster in Perseus - two panel mosaic

Equipment

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Acquisition details

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Description

The Double Cluster (Caldwell 14) comprises of two open star clusters - NGC 869 and NGC 884 in the constellation Perseus. The clusters are located 7,100 light years (NGC 869) and 7,400 light years (NGC 884) from Earth [O'Meara; The Caldwell Objects 2nd Edition - 2016]. The clusters are 12.8 million years old.

Data for this object were captured between 13 and 18 September 2018 from two remote imaging rigs (located in Spain) that are jointly owned and operated by Barry Wilson and me.

Between 12 and 17 October 2020 Barry and I revisited this target with a view to capturing some of the faint Ha signal that surrounds this area.

Capture details are as follows:

Telescopes: Takahashi FSQ 106 x2

Camera: QSI 683 WSG x2

Filters: Astrodon & Astronomik RGB

Mount: 10 Micron GM1000HPS & 10 Micron GM2000HPS

Red: 52 x 300s (2018)

Green: 50 x 300s (2018)

Blue: 51 x 300s (2018)

Ha: 42 x 1200s (2020)

A total of 26 hours and 45 minutes exposure.

Data Capture: Steve Milne & Barry Wilson

Image Processing: Steve Milne

Comments

Revisions

  • Double Cluster in Perseus - two panel mosaic, Steve Milne
    Original
  • Double Cluster in Perseus - two panel mosaic, Steve Milne
    B
  • Double Cluster in Perseus - two panel mosaic, Steve Milne
    C
  • Final
    Double Cluster in Perseus - two panel mosaic, Steve Milne
    D

C

Description: Update 2020 - Barry and I returned to this target in October 2020 in an attempt to capture some of the faint Ha signal in this area.

Uploaded: ...

D

Description: Minor tweaks to red saturation in light of Olly's comments below.

Uploaded: ...

Sky plot

Sky plot

Histogram

Double Cluster in Perseus - two panel mosaic, Steve Milne