Observation by Geof Lewis: Messier 81

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Observer

Geof Lewis

Observed

2020 Mar 02 - 23:00

Uploaded

2020 Mar 07 - 09:58

Objects

M81

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Constellation

Ursa Major

Field centre

RA: 09^h55^m
Dec: +69°03'
Position angle: +93°45'

Field size

0°22' × 0°16'

Equipment

Scope: C14 + Optec x0.67 telecompressor lens
Camera: QSI583wsg-5
Filters: Astronomic HaLRGB

Exposure

RGB=18x300s each; L=18x600s; Ha=16x900s. All bin 2x2

Location

Norfolk, UK

Target name

Messier 81

Title

Messier 81

About this image

Messier 81 is also known as also known as NGC 3031 or Bode's Galaxy. It's a super example of a classical spiral galaxy and is located 12 million light years away in the constellation of Ursa Major. With low to moderate magnification in a medium sized telescope you can see it nicely paired with Messier 82, which appears as a thin line compared to the larger aspect of M81. M81 is about half the size of our own galaxy and Geof has captured it nicely in this image.

Files associated with this observation

wk10_20_M81_lewis.jpg (1.1 MB)

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