Observation by Alan Thomas: HCG57 Copeland's Septet Galaxy Cluster i...

Uploaded by

Alan Thomas

Observer

Alan Thomas

Observed

2024 May 27 - 11:59

Uploaded

2024 May 27 - 13:24

Objects

Arp 320
NGC3745
NGC3746
NGC3748
NGC3750
NGC3751
NGC3753
NGC3754

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Constellation

Leo

Field centre

RA: 11^h37^m
Dec: +22°00'
Position angle: -0°56'

Field size

0°14' × 0°15'

Equipment

42cm CDK17 corrected Dall-Kirkham f/6.8
ProLine KAF-09000 camera
10Micron GM4000 mount

Exposure

3min.

Location

Observatorio del Teide, Tenerife

Target name

HCG57 Copeland's Septet Galaxy Cluster in Leo

Title

HCG57 Copeland's Septet Galaxy Cluster in Leo

About this image

This cluster of mag. 14.0-15.0 galaxies was discovered by Ralph Copeland in 1874, using Lord Rosse's 72" reflector at Birr Castle. The most prominent seen in this COAST image is the Saturn-like NGC 3753, a 14th mag. spiral galaxy. Also NGC 3746, a mag. 14.1 spiral galaxy to its right above.

Files associated with this observation

Copeland's Septet COAST v3image-jpeg-i.jpeg (112.4 kB)

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Callum Potter

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