Quote:
Originally Posted by PeterEde
Wow. Shows how much I'm still struggling with alignment. 30 sec is the best I've managed
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Just keep at it Peter, it takes practice to achieve good PA without spending half your night doing it. Read up on drift alignment and keep at it.
Quote:
Originally Posted by orion69
Sorry to be party breaker but it's not really, at least not repeatable with low end mounts (or more or less with any mount without absolute encoders).
You can have a perfect PA but because of high PE you will have to throw away many subs.
Guiding is unavoidable.
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You are absolutely correct. This post wasn't meant to discourage anyone from guiding, or even suggest that it's totally unnecessary, it was meant to encourage those who don't have the means or equipment to guide, and show that slightly longer subs are possible.
Quote:
Originally Posted by cometcatcher
Rex, curiosity wants to know, what's the bright star and cluster?  |
Kevin, it's Antares and M4.
Quote:
Originally Posted by raymo
When inspected closely, your star trails suggest round stars for approx.
2 minutes, which I can achieve with my HEQ5. If you are lucky enough to have a mount with lower than average PE, you could maybe get a little longer, say 2.5 mins, but other external factors come into play which
prevent repeatability for any longer than that. You have a comparatively short focal length scope Rex. If you had say an 8" SCT, you would struggle to get 60 secs.
raymo
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I have no doubt you could achieve the same with your mount Raymo. It's basically the same as mine.You're correct with all you have said, however, most new-comers, who this post was supposed to encourage, start out with short focal length scopes, ED80, f/5 newts etc, so that's why I thought it was relevant.
Quote:
Originally Posted by PeterEde
So I can stop panicking. I could never achieve much more than 1 minute or maybe 2 on my EQ3 unguided
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Hi again Peter, I must be coming across wrong mate. I apologise if I made you panic, that was not the intention. Sorry mate. I don't know a lot about mounts mate, but I think the main difference between your mount and mine is the amount of weight it can carry.