Observation by Alan Thomas: Palomar 5 Globular Cluster in Serpens

Uploaded by

Alan Thomas

Observer

Alan Thomas

Observed

2025 Jan 06 - 05:31

Uploaded

2025 Jan 08 - 11:09

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Constellation

Serpens Caput

Field centre

RA: 15^h16^m
Dec: +00°07'
Position angle: +174°52'

Field size

0°43' × 0°43'

Equipment

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

Exposure

2 min.

Location

Observatorio del Teide, Tenerife

Target name

Palomar 5 Globular Cluster in Serpens

Title

Palomar 5 Globular Cluster in Serpens

About this image

This small (10-15,000 solar masses), faint (mag. 11.75) diffuse globular cluster in Serpens can barely be discerned in this COAST image, though a longer exposure in better conditions might improve matters, probably not by much. It lies within the triangle of brighter stars at the centre of the image.

The cluster lies about 61,000ly from the galactic centre, and is gradually disintegrating under the influence of the Milky Way. Age 11.5-12 billion yrs.

It was discovered by Walter Baade in 1950 while working at the Mount Wilson Observatory, though later 'rediscovered' by A. G. Wilson at Mt. Palomar.

Files associated with this observation

Palomar 5 g c Serpens COAST v3image-jpeg-i.jpeg (1.5 MB)

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Dr Paul Leyland

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