Originally Posted by rrussell1962
Utterly clouded out in Brisbane, but have dug out some observations of Orion doubles from the past 12 months with varying equipment. These are what I wrote down at the time except the magnifications which I have added. The notes were never intended for public consumption so are very brief, but I didn't want to start adding things with hindsight. I will make better notes in future! Quite often I set up 2 telescopes for comparison purposes, I hope I have not mixed up which one I was using. If you think I may have done, please point it out.
30/1/17 Seeing good 8/10 Vixen ED80 F9
Rigel 5LVW Good view, well split, secondary v.clear x144
Pi3 Ori 5LVW Primary yellowish, secondary v. faint x144
Rho Ori 8LVW Primary yellowish, secondary blue speck x90
Struve 667 8LVW, orange hue, secondary off white. x90
23 Ori 8LVW both blue / white. x90
Wnc2 8 LVW, close but easy split, equal brightness. x90
Eta Ori 5LVW, very elongated, split at times. x144
33 Ori, 5 LVW, clear split x144
Lambda Ori, 8 LVW, split, easier with 5 LVW x90 x144
Iota Ori, 8 Ethos, secondary lovely faint speck x90
1/2/17 Vixen VC200L, seeing OK 7/10 with better moments
Wnc2 13LVW and 10 Delos, clear split x138 x180
Eta Ori, 13LVW, 10Delos, 8LVW split at moments, 5LVW pushing too far with seeing x138 x180 x225 x360
33Ori 10Delos, clear glimpses, 8Ethos same x138 x180
32 Ori 8Ethos, just split at times x225
31 Ori, 8Ethos gold and faint blue x225
4/2/17 Vixen ED80 F9 Seeing good
Alnitak, clear split 3.5LVW pushing it! x206
Eta Ori, split 5LVW, better 3.5LVW when seeing steady, just split x144 x206
Eta Ori, old Vixen 0.965 5mm Ortho and diagonal, just split but V CLEAR c/w LVW x144
17/2/17 Nexstar 8SE 7/10 seeing
14 Ori Elongated but can’t say good split 8LVW x254
Alnitak 8LVW clear x254
32 Ori 10 Delos 8LVW both close but clear x203 x254
Trapezium 13 LVW E and F visible.
8/2/18 Obsession 18 F4.5 P/Corr Trans 6/10 Seeing 7/10
Rigel mostly steady, Capella Some twinkling @ 1 sec intervals
8Ethos Orion doubles x291
Iota, lovely triple!
Sigma, nice splits, good!
Struve 761, 3rd star wide
Lambda (Meissa) Clear, nice
52 Ori, easy split tonight, equal and f.bright tried 8LVW - split but not as good
Alnitak, nice, clear
42 Ori,
32 Ori
Eta Ori nice split
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