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Cold weather tips
Marj is writing of the 15 Volt power supply, Jeffrey, not amps. The higher voltage will make more 'power' available to the motors. My regards, dan kowall photonhunter.com _________
Marj is writing of the 15 Volt power supply, Jeffrey, not amps. The higher voltage will make more 'power' available to the motors. My regards, dan kowall photonhunter.com _________
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dan kowall
· #29793
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Strange star shapes
What Ron said: diffraction effects. <g> I'll add one other possibility to his list: stuff on the lens. You might want to investigate a bit further before sending in your 'scope. dan kowall _________
What Ron said: diffraction effects. <g> I'll add one other possibility to his list: stuff on the lens. You might want to investigate a bit further before sending in your 'scope. dan kowall _________
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dan kowall
· #29174
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Ra Tracking problem with my AP900... UPDATE!
But, of course, Fred. <g> It also depends upon your focal length, pixel size, well depth, sky background, filter transmission, and so on... There are so many variables that it often helps to let the m
But, of course, Fred. <g> It also depends upon your focal length, pixel size, well depth, sky background, filter transmission, and so on... There are so many variables that it often helps to let the m
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dan kowall
· #28422
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Ra Tracking problem with my AP900... UPDATE!
".....As far as the autoguiding rant is concerned: Why would I want to autoguide as long as I can get nice stars and good signal with the ST-10XME in a 180 sec exposure?....." Because you want the sho
".....As far as the autoguiding rant is concerned: Why would I want to autoguide as long as I can get nice stars and good signal with the ST-10XME in a 180 sec exposure?....." Because you want the sho
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dan kowall
· #28413
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Ferrite Choke
I use a baby monitor to listen in on the observatory while I'm in the house during an imaging session. My MI-250 mount would interfere with the monitor if it didn't have a choke on it. The choked AP m
I use a baby monitor to listen in on the observatory while I'm in the house during an imaging session. My MI-250 mount would interfere with the monitor if it didn't have a choke on it. The choked AP m
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dan kowall
· #25203
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New Roll-off Observatory
Hi Dennis, Long time no hear. It's time to fire up the airplane and take an up high image of the roll-off like the one that you had of the dome. <g> My regards, dan kowall ________
Hi Dennis, Long time no hear. It's time to fire up the airplane and take an up high image of the roll-off like the one that you had of the dome. <g> My regards, dan kowall ________
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dan kowall
· #24868
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Dwarf planets!
Hi Dick, Those are two excellent captures. I think that you can up the number of captures to three, though. There's a moving body at the top of the Makemake gif, too. dan photonhunter.com _____
Hi Dick, Those are two excellent captures. I think that you can up the number of captures to three, though. There's a moving body at the top of the Makemake gif, too. dan photonhunter.com _____
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dan kowall
· #24365
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Astrophysics command center?
It was a terrible tease to see what the program could do, Ray, and to not be able to take a copy home. <g> I'm a bit of a Luddite when it comes to software, but I can't wait to get a copy for myself.
It was a terrible tease to see what the program could do, Ray, and to not be able to take a copy home. <g> I'm a bit of a Luddite when it comes to software, but I can't wait to get a copy for myself.
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dan kowall
· #23890
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two new shots form last session
Excellent color on both images, Marco. dan kowall _______ Marco Lorenzi <marcolorenzi70@...> wrote: Dear all, here are a couple shots from my last stay at home. The telescope used is my TEC140 mo
Excellent color on both images, Marco. dan kowall _______ Marco Lorenzi <marcolorenzi70@...> wrote: Dear all, here are a couple shots from my last stay at home. The telescope used is my TEC140 mo
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dan kowall
· #23136
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Expected polar alignment precision with PemPro
Hi Rick, I can't answer your PemPro questions, but I have used a similar setup for imaging (except for the field flattener which isn't really needed with the ST10). I do a drift alignment such that I
Hi Rick, I can't answer your PemPro questions, but I have used a similar setup for imaging (except for the field flattener which isn't really needed with the ST10). I do a drift alignment such that I
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dan kowall
· #22474
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Solved! -- Help - Counterweight shaft stuck to Mach 1 counterweight adapter.
One caveat to Jeff's advice, Terry: The alkalinity of the bar soap will cause corrosion on many metals. Even though the shafts are stainless steel, most stainless steels contain trace amounts of impur
One caveat to Jeff's advice, Terry: The alkalinity of the bar soap will cause corrosion on many metals. Even though the shafts are stainless steel, most stainless steels contain trace amounts of impur
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dan kowall
· #21911
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Autoguider correction frequency
Yes. It is mostly unreadable with text and images piled one on top of another. dan ___ "William R. Mattil" <wrmattil@...> wrote: dan kowall wrote: Dan, The following page ? http://www.fishca
Yes. It is mostly unreadable with text and images piled one on top of another. dan ___ "William R. Mattil" <wrmattil@...> wrote: dan kowall wrote: Dan, The following page ? http://www.fishca
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dan kowall
· #21284
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Autoguider correction frequency
I'm at 1680 x 1050 (Apple Cinema). The overwriting occurs at all font sizes. I'm a novice at html (actually below novice if that's possible), but the source code at Starfish shows a lot of absolute po
I'm at 1680 x 1050 (Apple Cinema). The overwriting occurs at all font sizes. I'm a novice at html (actually below novice if that's possible), but the source code at Starfish shows a lot of absolute po
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dan kowall
· #21282
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Autoguider correction frequency
I have the same problem. I'm using Firefox. dan kowall Alan Voetsch <alan_voetsch@...> wrote: Internet Explorer. Alan --- Bob Piatek <bobtek@...> wrote: Astrophotography: http://www.pbase.co
I have the same problem. I'm using Firefox. dan kowall Alan Voetsch <alan_voetsch@...> wrote: Internet Explorer. Alan --- Bob Piatek <bobtek@...> wrote: Astrophotography: http://www.pbase.co
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dan kowall
· #21273
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non-standard park position
Yes, you can park the mount in any position, just turn off the power. A search will reveal recent threads on this topic. dan kowall _________ Gavin Bray <gavbray@...> wrote: Hello I'm about to p
Yes, you can park the mount in any position, just turn off the power. A search will reveal recent threads on this topic. dan kowall _________ Gavin Bray <gavbray@...> wrote: Hello I'm about to p
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dan kowall
· #20977
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Cable issues
Are we talking about the clutch knobs? If so, there's no need to reinvent the wheel, as there are special Allen head bolts available from AstroPhysics that alleviate this specific problem. dan kowall
Are we talking about the clutch knobs? If so, there's no need to reinvent the wheel, as there are special Allen head bolts available from AstroPhysics that alleviate this specific problem. dan kowall
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dan kowall
· #20853
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AP Mount Limit Switch Success
Hi Rick, I, too, would like to see a picture. Don't be shy about your accomplishment. <g> dan kowall photonhunter.com ______
Hi Rick, I, too, would like to see a picture. Don't be shy about your accomplishment. <g> dan kowall photonhunter.com ______
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dan kowall
· #18457
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Anyone designed a limit switch or similar to prvent pier col...
The Gemini mounts sound an alarm when the safety limits are reached, but they don't stop tracking. dan kowall ______ astrokattner <kattnerk@...> wrote: <<SNIP>> Can't the mount "remember"
The Gemini mounts sound an alarm when the safety limits are reached, but they don't stop tracking. dan kowall ______ astrokattner <kattnerk@...> wrote: <<SNIP>> Can't the mount "remember"
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dan kowall
· #18365
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First images with AP1200 GTO
The greyscale Ha is especially compelling, Brian. Don't be afraid to load up the 1200, it probably didn't even notice the AP130 was riding up there. My regards, dan kowall ______ Brian Coote <dbcoote@
The greyscale Ha is especially compelling, Brian. Don't be afraid to load up the 1200, it probably didn't even notice the AP130 was riding up there. My regards, dan kowall ______ Brian Coote <dbcoote@
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dan kowall
· #18085
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NGC 6820/23
" BTW, how do you go back to exactly the same spot over a four night period of time?" It's actually pretty easy: --Start with a good polar alignment --RCAL each night on the same star close to your ta
" BTW, how do you go back to exactly the same spot over a four night period of time?" It's actually pretty easy: --Start with a good polar alignment --RCAL each night on the same star close to your ta
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dan kowall
· #17988
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