Observation by Clive Nanson: 4 Messier galaxies in Canes Venatici, #1...

Uploaded by

Clive Nanson

Observer

Clive Nanson

Observed

2020 Apr 19 - 22:54

Uploaded

2020 May 26 - 17:25

Objects

The Whirlpool Galaxy (M51)

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Constellation

Canes Venatici

Field centre

RA: 13^h29^m
Dec: +47°00'
Position angle: -0°35'

Field size

0°49' × 1°13'

Equipment

Canon EOS 200D
Canon EF 400mm F5.6 USM
Sky-Watcher EQM-35 mount

Exposure

80 x 180s at F5.6, ISO1600

Location

North West Leicestershire

Target name

M51

Title

4 Messier galaxies in Canes Venatici, #1, M51

About this image

Canes Venatici contains 5 Messier objects, 4 galaxies and 1 globular cluster. During the extended clear period in April, I managed to capture the 4 galaxies. This is the first of the 4. All 4 images are 4 hour (80 x 180s) integrations taken with a Canon 200D and 400mm F5.6 lens at ISO1600 on a SW EQM35 mount, and all have an identical FOV of 48 x 72 arc minutes to allow visual comparison of the size of each galaxy. Guiding was with PHD2, the images stacked using DSS and processed using IRIS and Starnet.

M51, the Whirlpool Galaxy, was captured on 19^th April and was previously posted but has been reprocessed with the FOV the same as the other 3 galaxy images. The image also includes elliptical NGC5198 (mag 11.7) at lower left, spiral NGC5169 (mag 13.6) and elliptical NGC5173 (mag 12.2) at lower right, and spiral IC4263 (mag 14.5) at centre right. A few other faint ‘smudges’ down to mag 16.5 are also visible.

Files associated with this observation

M51 200519 400mm F5.6 ISO1600 80 x 180s.jpg (648.5 kB)

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Jeremy Shears, Graham Winstanley, Andy Wilson

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