Observation by Martina McGovern: Messier 81

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Observer

Martina McGovern

Observed

2020 Nov 22 - 23:00

Uploaded

2020 Nov 25 - 17:34

Objects

M81

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Constellation

Ursa Major

Field centre

RA: 09^h55^m
Dec: +69°04'
Position angle: +78°15'

Field size

0°30' × 0°20'

Equipment

Celestron Edge HD 8” SCT, SkyWatcher HEQ5 PRO
ZWO ASI294MC Pro, main camera
ZWO ASIAir Pro, ZWO EAF (Electronic Automatic Focuser) & Dual-Speed 2-inch Crayford Focuser for SCT’s
ZWO 60mm Guide scope, ZWO ASI120MM mini, Guide camera
Optolong L-Pro Broadband filter, Optolong L-eXtreme dual band filter (Ha & OIII)

Exposure

Approx 5hrs of L-pro data & 40mins L-eXtreme data; 180s

Location

Cambridge, UK

Target name

Messier 81

Title

Messier 81

About this image

Martina comments that "I haven’t had a clear night in so so long – until last Sunday - So, I stayed up right through until 6am the next day!!! I have been wanting to try to capture this one for a while now."

M81 (Bodes Galaxy) is a grand design spiral galaxy about 12 Million light years away, with a diameter of 90,000 light years, in the constellation of Ursa Major. Due to its proximity to Earth, large size, and active Galactic nucleus (which harbours a supermassive black hole), Messier 81 has been studied extensively by professional astronomers. Extract from Wikipedia.

Files associated with this observation

M81_mcgovern_221120.jpg (261.7 kB)

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