Splitting ε Lyrae into four stars?

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pakarinen United States of America
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Splitting ε Lyrae into four stars?

#1

Post by pakarinen »


I'm curious what size scopes and magnification people have used to resolve ε Lyrae (The Double Double) into four stars.
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Re: Splitting ε Lyrae into four stars?

#2

Post by Bigzmey »


80mm frac works. The power will depend on the seeing conditions, optics quality and observe experience. I would say 80x and up.
Scopes: Stellarvue: SV102ED; Celestron: 9.25" EdgeHD, 8" SCT, 150ST, Onyx 80ED; iOptron: Hankmeister 6" Mak; SW: 7" Mak; Meade: 80ST.
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Re: Splitting ε Lyrae into four stars?

#3

Post by messier 111 »


I agree, I did it with my tele view 85 to 100x.
the quality of the sky is paramount to obtain a decent result.
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Re: Splitting ε Lyrae into four stars?

#4

Post by Unitron48 »


With decent sky quality, I've split it with my 60mm, f/15 Unitron refractor...at 100X.

Dave
Unitron (60mm, 102mm), Brandon 94
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Re: Splitting ε Lyrae into four stars?

#5

Post by pakarinen »


I had a little time this morning to have another look at ε with my 72ED. No joy at 100X, but I then Barlowed my 4mm and it looked like ε² split very briefly a couple of times. No split on ε¹ though. :(

I think I'll fire up my 102ED next and see how that does.
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I drink tea, I read books, I look at stars when I'm not cursing clouds. It's what I do.
=============================================================================
AT50, AT72EDII, ST80, ST102; Scopetech Zero, AZ-GTi, AZ Pronto; Innorel RT90C, Oberwerk 5000; Orion Giantview 15x70s, Vortex 8x42s, Navy surplus 7x50s, Nikon 10x50s
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Re: Splitting ε Lyrae into four stars?

#6

Post by helicon »


I was able to split in the 6" Achro at 120x. Have not tried it on the 102mm f/9.8 scope yet.
-Michael
Refractors: ES AR152 f/6.5 Achromat on Twilight II, Celestron 102mm XLT f/9.8 on Celestron Heavy Duty Alt Az mount, KOWA 90mm spotting scope
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Re: Splitting ε Lyrae into four stars?

#7

Post by pakarinen »


Alas, my ST120 was not up to the task this morning, even at 125X. But I did split it at 119X with my 102ED although it blurred out now and then. Guess that just reinforces that the 120 really is better suited for lower power, wide field observing.
=============================================================================
I drink tea, I read books, I look at stars when I'm not cursing clouds. It's what I do.
=============================================================================
AT50, AT72EDII, ST80, ST102; Scopetech Zero, AZ-GTi, AZ Pronto; Innorel RT90C, Oberwerk 5000; Orion Giantview 15x70s, Vortex 8x42s, Navy surplus 7x50s, Nikon 10x50s
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