Observation by Alan Thomas: M75 Globular Cluster in Sagittarius

Uploaded by

Alan Thomas

Observer

Alan Thomas

Observed

2022 Aug 05 - 22:47

Uploaded

2022 Aug 07 - 11:19

Objects

M75

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Constellation

Sagittarius

Field centre

RA: 20^h06^m
Dec: -21°55'
Position angle: -5°38'

Field size

0°24' × 0°18'

Equipment

Unistellar eQuinox 112mm reflector

Exposure

2min.

Location

Norbreck Observatory, Warrington, Cheshire, UK.

Target name

M75 Globular Cluster in Sagittarius

Title

M75 Globular Cluster in Sagittarius

About this image

M75 is a remote (>65kly), densely packed, Class I globular cluster, located on the opposite side of the galactic centre to ourselves. It was discovered by Pierre Méchain in August 1780. Because Sagittarius is never well-placed for UK observers, M75 is an awkward object to observe: at the time this image was obtained, it stood only about 15˚ above the horizon and soon disappeared behind trees, hence the brief exposure.

I was interested to discover that M75 is, or was, part of the Gaia Sausage. Er...right.

Diameter c.134ly. Distance c.67,500ly. Age c.13billion years.

Files associated with this observation

eVscope-20220805-224416 (2).jpg (72.1 kB)

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Callum Potter, Dr Paul Leyland

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