Observation by Peter Tickner: Messier 51

Uploaded by

Peter Tickner

Observer

Peter Tickner

Observed

2020 Mar 02 - 00:24

Uploaded

2020 Mar 08 - 00:30

Objects

The Whirlpool Galaxy (M51)

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Constellation

Canes Venatici

Field centre

RA: 13^h30^m
Dec: +47°02'
Position angle: -40°55'

Field size

0°42' × 0°51'

Equipment

ZWO ASI071 MC Pro CMOS camera
14inch LX200 SCT at f/10 and 130mm triplet APO
EQ8 mount and EQ6 mount
OAG with Lodestar X2 Autoguider
0.75 reducer with the refractor image

Location

Urban Berkshire

Target name

M51 - Whirlpool Galaxy

Title

Messier 51

About this image

This is two images of M51, the top one is a small section of an image taken through my 130mm refractor using a 0.75 Riccardi reducer at 1x1 binning and the lower image through my 14inch SCT at 2x2 binning, using the same OSC camera for both images. The top image is a stack of 12x300seconds and the lower image is 30x300seconds.

It was an interesting comparison and shows how sensitive modern colour cameras have become. Flats and darks subtracted from both images.

Peter

Files associated with this observation

M51 two ways baa.png (1.9 MB)

Like this image

Ray Emery, Alan Thomas, David Strange, Miguel Araújo, Andy Wilson, Mr Michael Alan Frost, Mark Phillips, Lyn Smith, Mr John William Hughes, Andrew Dumbleton

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