Observation by Martina McGovern: Messier 81 in Ursa Major
Uploaded by
Observer
Martina McGovern
Observed
2020 Nov 23 - 23:00
Uploaded
2020 Dec 12 - 10:36
Objects
Planetarium overlay
Constellation
Ursa Major
Field centre
RA: 09h55m
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 & Darks, Flats & Dark flats. Camera settings were Gain 225, cooled to T -15C
Location
Near Cambridge, UK
Target name
Messier 81
Title
Messier 81 in Ursa Major