Observation by Peter Hannah: Perseus Double Cluster

Uploaded by

Peter Hannah

Observer

Peter Hannah

Observed

2025 Aug 06 - 15:34

Uploaded

2025 Aug 06 - 15:35

Objects

NGC869
NGC884

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Constellation

Perseus

Field centre

RA: 02^h20^m
Dec: +57°06'
Position angle: +31°00'

Field size

0°48' × 0°47'

Equipment

Planewave CDK 14 Corrected Dall-Kirkham
10Micron GM2000 mount
Astrodon LRGB filters

Exposure

Lum 8hrs, Red 7hrs, Green 10hrs, Blue 5hrs

Location

Oria, Spain

Target name

Perseus Double Cluster

Title

Perseus Double Cluster

About this image

I don't often image open clusters but this has always been a favourite of mine, as it was one of the few I could just make out with the naked eye on a good night in the city where I grew up.

Located about 7,500 light years away in the Perseus arm of our Milky Way galaxy, NGC 869 and 884 are very young clusters in astronomical terms at about 14 million years – far younger than, say, the Pleiades (~100 My).
Being so young they feature numerous blue-white supergiant stars of spectral types O and B, and indeed the clusters are at the heart of the larger Perseus OB1 Association of young hot stars.

In this image, north is approximately at the 1 o'clock position.

Files associated with this observation

Double Cluster.jpg (2.9 MB)

Like this image

Callum Potter, Dominic Ford, Simon Paul Davis

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