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Splitting Antares with apo?
What is the minimum size of apochromatic refractor needed to split the
Antares binary? Thank you. |
#2
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Splitting Antares with apo?
In article k.net,
"Rank Amateur" wrote: What is the minimum size of apochromatic refractor needed to split the Antares binary? Thank you. I have split this pretty double a couple of times this summer with a TV NP101 at about 100X. It was not a difficult object, but on other nights I couldn't split it at all, even though I thought the transparency might be up to it. Very 'seeing' dependant, and more easily visible in deep twilight than in darkness, at least in my experience. I've sometimes had trouble seeing it in large scopes, too. Starry Skies, Rich |
#3
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Splitting Antares with apo?
In article
, Richard DeLuca wrote: I have split this pretty double a couple of times this summer with a TV NP101 at about 100X. It was not a difficult object, but on other nights I couldn't split it at all, even though I thought the transparency might be up to it. Very 'seeing' dependant, and more easily visible in deep twilight than in darkness, at least in my experience. I've sometimes had trouble seeing it in large scopes, too. Starry Skies, Rich I should add that I'm at 42° north latitude, so Antares is always pretty low, even when transiting. |
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Splitting Antares with apo?
"Rank Amateur" wrote in message thlink.net...
What is the minimum size of apochromatic refractor needed to split the Antares binary? Thank you. Hello ; Its easy in a 4 inch apochromatic refractor , as long as the seeing is on the good side . Leonard |
#5
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Splitting Antares with apo?
What is the minimum size of apochromatic refractor needed to split the
Antares binary? A good test object for a 4" apo, but an excellent 3" should be able to do it on a great night. With any scope, the seeing must be quite decent to have a chance. It's a nice color contrast double. Cheers, Ritesh |
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Splitting Antares with apo?
"Rank Amateur" wrote in message thlink.net...
What is the minimum size of apochromatic refractor needed to split the Antares binary? Thank you. The major issue is seeing. With good seeing, if Antares is high enough, you should be able to do it with a good 60mm refractor. However, it will look better in a 4." -Rich |
#7
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Splitting Antares with apo?
If only it would ever get high enough. I keep waiting, but it never gets
above the same point ;-) Mike. "Richard" wrote in message om... "Rank Amateur" wrote in message thlink.net... What is the minimum size of apochromatic refractor needed to split the Antares binary? Thank you. The major issue is seeing. With good seeing, if Antares is high enough, you should be able to do it with a good 60mm refractor. However, it will look better in a 4." -Rich |
#8
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Splitting Antares with apo?
The major issue is seeing. With good seeing, if Antares is high enough,
you should be able to do it with a good 60mm refractor. Hmm, I think the chances of a decent split in a 60mm are really slim or even close to non-existent. The companion would be hopelessly swamped in the glare from Antares' huge Airy disc. Ritesh |
#9
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Splitting Antares with apo?
On 2004-07-26, Rank Amateur wrote:
What is the minimum size of apochromatic refractor needed to split the Antares binary? It's possible in a 4". Been there. Did that. They don't make the T-shirt. |
#10
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Splitting Antares with apo?
"Rank Amateur" wrote in message thlink.net...
What is the minimum size of apochromatic refractor needed to split the Antares binary? Thank you. I've split it easily some nights in my TV85 at 120x. On other nights it won't split at 300x. As always, seeing is the crucial ingredient. Clyde |
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