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Re: Pluto & Charon
is there a handy link that shows separation calendar/time?
By Stan · #15051 ·
Re: Pluto & Charon
This sounds like a good target. about 0.9 arcsec maximum separation. -- benoit C14_EdgeHD@...> wrote:
By Benoit Schillings · #15050 ·
Re: Pluto & Charon
Nice challenge! I may take you up on it. Stan
By Stan · #15049 ·
Pluto & Charon
Has anyone imaged Charon? Not a full fledged dbl split. But enough of a bump or elongation, in the right place, to say you got it? If you've ever seen the discovery photo of Charon, taken with the
By keithnk_m42 · #15048 ·
Re: C11 Edge is not suitable for guide scope tracking
"...perfectly adequate new OAGs for $150-$250" Yes, we are lucky to have the variety and competition we do these days. I did initially get and try an adequate $250 OAG. But, but, but, but, but.... And
By keithnk_m42 · #15047 ·
Re: Edge C11 1st lights
Hey Stan. First, nice work with the emccd. I see you said in a previous post that your ecposure was .125x56k. Are you saying you stacked 56thousand frames? If so, what rack of blade severs are you
By Dave · #15053 ·
Re: C11 Edge is not suitable for guide scope tracking
AO is a plus on these scopes. Stan, are you still down at RH? Are your hd11 tests with EMC from RH/super datk site with very good seeing? Dave PW14/AP305RH DSW
By Dave · #15054 ·
Re: C11 Edge is not suitable for guide scope tracking
"several thousand for a good OAG system" Google "Off axis guider for SCT" and you'll find perfectly adequate new OAGs for $150-$250 from OPT, Lumicon, Celestron, etc.. Used ones come up somewhat
By Stan · #15046 ·
Re: C11 Edge is not suitable for guide scope tracking
" what was wrong with the mirror locks?" Hi Dave Imo, nothing. The mirror locks work very well holding and maintaining the mirror "flat" relative the rest of the optical components, even though the
By keithnk_m42 · #15045 ·
Re: C11 Edge is not suitable for guide scope tracking
Hi Stan, Yes I am aware of the issues, both of mirror shift, differential flexure, and others too. I learned much about, and successfully dealt with those issues with my 10" Meade classic and its
By keithnk_m42 · #15044 ·
Re: Installation of a FeatherTouch SC Microfocuser. Hard to turn focuser knob..fix?
Talked to StarLight instruments. The brass stop tolerance vs the Celestron focuser shaft tolerances have recently been an issue and have resulted in difficulty with turning the focuser. Will be a
By George Dunham · #15043 ·
Re: Installation of a FeatherTouch SC Microfocuser. Hard to turn focuser knob..fix?
This will be hard to describe but I will try. Ultimately I found one issue that made the turning of the focuser difficult. I found that there is an issue with the threads of the brass stop (as
By George Dunham · #15042 ·
Re: Edge C11 1st lights
"What camera are you using?" It is an esoteric 2nd hand EMCCD. Such cameras are primarily made for microscopy and typically cost near $20k but used ones infrequently appear from laboratory liquidators
By Stan · #15041 ·
Re: Edge C11 1st lights
Stan, What camera are you using? Are you using a reducer? Sent: Thursday, August 3, 2017 12:08 PM To: C14_EdgeHD@... Subject: [C14_EdgeHD] Edge C11 1st lights some first lights from my new
By bgcombs44 · #15040 ·
Edge C11 1st lights
some first lights from my new Edge C11. Stan http://www.stanmooreastro.com/images/m013_C11_SM2017.jpg http://www.stanmooreastro.com/images/m013_C11_SM2017.jpg
By Stan · #15039 ·
Re: C11 Edge is not suitable for guide scope tracking
"The main mirror is shifting within the OT" You have affirmed what legions of SCT imagers have known for decades. I'm surprised that you were unaware of this, as it is often discussed in many forums.
By Stan · #15038 ·
Re: Installation of a FeatherTouch SC Microfocuser. Hard to turn focuser knob..fix?
Not to say it doesn't happens but I've never seen this non-orthogonal issue and I've installed several Feather Touches and have friends who've done likewise. If I were to identify such a problem I
By Stan · #15037 ·
Re: C11 Edge is not suitable for guide scope tracking
you can get mirror flop with oag. using a guide scope your error is more than likely differentiy flexure between the two systems. what was wrong with the mirror locks? I know people on cn shooting
By Dave · #15036 ·
Re: Installation of a FeatherTouch SC Microfocuser. Hard to turn focuser knob..fix?
When you attach the focuser just pull the mirror back and forth. It should slide very smoothly. If you cannot pull the mirror through its entire range and do so very smoothly, you have other issues.
By Gary Jarrette <garyjarrette@...> · #15035 ·
Re: C11 Edge is not suitable for guide scope tracking
Today I have a follow up to my original note declaring that the C11 Edge, at f7 or f10, is not suitable for guide scope tracking for anything over 100 seconds or so. The question I had, that remained
By keithnk_m42 · #15034 ·