Observation by Alan Thomas: NGC 5053 Globular Cluster in Coma Bereni...

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Alan Thomas


Alan Thomas


2024 Apr 17 - 22:11


2024 Apr 19 - 10:54



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Coma Berenices

Field centre

RA: 13h16m
Dec: +17°41'
Position angle: -22°56'

Field size

0°36' × 0°27'

  • Unistellar eQuinox 112mm reflector



Norbreck Observatory, Warrington, Cheshire, UK.

Target name

NGC 5053 Globular Cluster in Coma Berenices


NGC 5053 Globular Cluster in Coma Berenices

About this image

This extremely loose (Class IX), faint (mag. 9.96) globular cluster could easily be taken for an open cluster. It was discovered by William Herschel in 1784 March 14, almost exactly 240 years prior to this observation. Herschel described it as "an extremely faint cluster of extremely small stars"; it is far fainter than most of the Messier globulars, containing stars of between mag 14 and 17. However, it is quite a pretty object showing good colours in this twenty-minute exposure.

Distance c.54,000ly. Diameter c.160ly.

Bortle 7/8. Moon at first quarter (77%) in a clear sky.

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