Observation by Nik Szymanek: Messier 81

Uploaded by

Nik Szymanek

Observer

Nik Szymanek

Observed

2019 Feb 15 - 13:06

Uploaded

2019 Feb 16 - 13:08

Objects

M81

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Constellation

Ursa Major

Field centre

RA: 09^h55^m
Dec: +69°03'
Position angle: +90°18'

Field size

0°36' × 0°26'

Equipment

GSO 10" (254mm) RC telescope
QSI 583 wsg CCD camera
Astrodon LRGB and Ha filters
Paramount ME equatorial mount
AP 0.67 focal reducer

Exposure

300 and 600 second exposures 20 hours total.

Location

Boxted, Essex.

Target name

Messier 81

Title

Messier 81

About this image

Messier 81

GSO 10" RC telescope and AP 0.67 reducer

QSI 583wsg CCD camera,

Astrodon LRGB and hydrogen-alpha filters,

Paramount ME equatorial mount

Starlight Xpress Lodestar guider

Lum: 29 x 10m

Red: 20 x 10

Green: 21 x 10m

Blue: 38 x 10m

H-alpha: 25 x 10m

20 hours total exposure

Processed in Maxim DL, Photoshop CC and PixInsight.

Images taken from Boxted, Essex, UK.

Files associated with this observation

M81 NS.jpg (584.6 kB)

Like this image

David Basey, Andrew Paterson, Eric Watkins, Graham Winstanley, Nick Hewitt, Jeremy Shears, Ray Emery, Peter Mulligan, Callum Wingrove, Andy Wilson, Les Dickens, Peter Carson

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