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helicon wrote: ↑Wed Mar 03, 2021 2:06 pm
Great evening with the double stars Andrey! To be honest I have never looked for anything in Columba or Caelum, pretty much too low for me behind the trees. I can just catch Lepus and M79 the globular cluster and then comet Panstarrs I think it was....
Thanks Michael! I know what you mean. I would not even bother if I would not have clear spot to the South and even then I was scratching the horizon for some of the doubles.
John Fitzgerald wrote: ↑Wed Mar 03, 2021 4:31 pm
The OP inspired me to look at some of the doubles in the post. I did so last evening.
Bu 94 (WDS 05496-1429) m 5,7, 8.2, sep 2.3, PA 165 deg. The seeing down low would not allow resolution of this unequal pair, even though I tried various powers up to 243 x with my 6" f/8 apo for many minutes. I may try again soon if I get the chance.
HJ 3857 AB (WDS 06240-3642) m 5.7, 9.8 sep 13", PA 255 deg. I stared at this one at length with a power of 173, then with 203x, did not see the companion, then switched to 135x and immediately saw the tiny pinprick of light. Then, also saw it at 81x. Sometimes, in poor seeing, less is more, I guess. Star C, m 6.9, is some 63" distant.
HJ 3858 BC (WDS 06255-3504) m 7.6, 8.2, sep 3.9" at PA 310 deg. This one was easy at 173x. Star A, m 6.4, is 134" distant.
Agree, less is more in particular with sharp refractors. I always start at the lowest power and work up as necessary. More often than not the spit is achieved at less power than one would expect.
