After my failed attempt to tag Messier 3 in the DDO 74-inch telescope, we moved to Izar aka ε (epsilon) Boötis.
While I had hoped to show a globular cluster, this double star was fantastic. A fine specimen, over 200 light-years away.
The antique eyepiece yielded a lovely view. At 2.9 seconds-of-arc separation, this would be challenging target for many amateur telescopes. It was easily split in the 30-metre focal-length 'scope. Yet, attractively close.
Slightly unequal in their brightness. Again, that makes for a good target and hopefully is intriguing to the spectator.
The colours were very nice too. A pale yellow primary. The secondary? First impression was pale blue. But at other times, I thought light green.
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Tried out the Night Sky Guide app from Shiny Objects for Android tonight. Simple, clean. I liked the listing of deep sky objects. But DSOs were not working tonight. Hrrm. I wish I could have looked up stars. Bright ones would be nice? Oh. I wonder if the author might consider adding double stars...
Saturday, June 22, 2019
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