Attilla ¨C What scope were you using for Jupiter tonight?? And from 8:30 ?when the seeing was good to now when you say the seeing has become quite poor, what maximum mags were you able to use?
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I was just trying out a new to me 25 year old Antares 120mm f8.33 objective in a home made refractor.? At about 9:30 to 10pm, Jupiter was good up to 140x (7mm eyepiece) to 200x (5mm EP) before empty
magnification set in.? But I don¡¯t know if this was the quality of the optics or the seeing that was the limiting factor.
Seeing frim west ottawa/kanata was very good around 8pm (9 bands on jupiter). But the seeing is quite poor now.?
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Lots of dew here too.
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On Thu, Oct 7, 2021, 22:48 Adam Bell <adambell714@...> wrote:
Would you say seeing was good tonight, then?
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I was just out at Luskville Falls, and I was having a lot of trouble on Jupiter, not very good views.?
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I think i was having trouble with fogging/dew on my mirrors and eyepiece. With my eyepiece eyecup rolled up, I started getting an aura around Jupiter. Not so much with it rolled down. I got the same effect from huffing on the eye lens.
So my eyeball was fogging the eyepiece lens?!
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The outside of the tube was wet with dew, and there was a light mist on the ground as well.? I guess I need a fan or something to keep the tube warm while observing.
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To anybody familiar with observing at Luskville Falls: the field east of the parking lot with the picnic bench; I assume that¡¯s the preferred spot? It was my first time observing in that area.
