General / Maintenance / Techniques

Zen Autoguiding

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What is the sound of no relays clicking? I tried some unguided tracking tonight and captured the data so I could see what’s up with my mount. I had to find a […]

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Techniques

MaxIM scripting

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This is a list of all the MaxIM scripting commands.

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ATM / Electronics / Focuser / Gear / General / Maintenance / Observing Reports / Optics / Techniques / Technology

Murphy was an optimist.

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Clear Sky Clock said it would be cloudy all night, so of course it stayed 90% clear until about midnight, when it socked in. But I’m getting ahead of myself… I decided […]

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Astro knowledge / Focuser / Gear / Maintenance / Techniques

New equipment works, finally.

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In order to get the new coma corrector working with the OAG inline, I had to try a lot of things before I found the right set that shoved the focal plane […]

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Astro knowledge / Techniques

stacking vs. subframe

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While I was testing out the Ha filter last night, I decided to test out a theory. Like most astrophotographers, I take lots of short subframes of my subject, then stack them […]

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Solar System Photography / Techniques / Technology

Re: swore I was going to put out an image tonight

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J, Registax always spools out that I have bad frames. That is unless one uses a source program from Logitec to make the avi. So, I use: http://divfixpp.sourceforge.net/ Works wonders and I […]

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Astro knowledge / Techniques

Starfield memorization: M51

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In an image of M51 taken near Feb 5, 2009 (todo: find this image), there is a really pretty blue star that’s very nearby the galaxy. I’d like to use that star […]

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Deep Sky / Gear / General / Long Exposure Photography / Techniques / Technology

what a night

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Yesterday afternoon, I industriously cleaned all my camera optics (CCD, MPCC both sides, IDAS-LPS both sides), and was convinced that this would be good for my flat field. More on this later. […]

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Techniques

This is it

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http://www.astro.uni-bonn.de/~mischa/mounts/g11_tuning.html > > J, > > > Make sure that the tapered roller bearing #2 from the right, is > between the two smooth bearings and that it is well lubricated and […]

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Techniques / Technology

Re: Gemini Polar alignment workflow

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On Jan 12, 2009, at 9:43 AM, Jimbo S. Harris wrote: > A, > > Per our conversation, here is what I’m going to try: > > > 1) Get mount to […]

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Techniques

Polar Alignment Calculations

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Here’s a page that derives Polar Alignment Calculations. (update 5/2020: the original site is gone, so I found the text on Wayback and am inserting it below. This is by the original […]

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Gear / Observatory / Telescope

Special Guest Star takes the mount at Hilltop O

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The Astro Jedi needed somewhere to store his light sab—- I mean, bucket, and I was only too happy to accommodate him. I have decided that I need to come to a […]

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General / Maintenance / Observatory

Dome shutter is motorized again!

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I finally decided to bite the bullet and fix the shutter motor. Things went sideways last winter, and I’ve been opening the shutter manually (and tying it shut with rope, so we […]

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ATM

Trixie 2017 – tube mods

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I finally got around to cutting the MTA-UTA tubes to length; the only eyepiece that would come to focus with the focuser spacer in place is the Televue 55mm Plossl. If I […]

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