Gear / Observing Reports

IDAS LPS is a good thing

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I’m testing out the new C9.25 tonight. Last night, I’m writing off as a “configuration” night. The sky is a little cloudy tonight, high thin clouds that serve to brighten up an […]

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To "boxcar" or not to "boxcar"

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Doug (author of MaxIM DL) suggests shooting everything RAW Monochrome. This has never worked correctly for me, but whatever. IMPORTANT POINT: If (and only if) flats are shot in RAW Monochrome, then […]

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Re: What was the Name?

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Art Morton wrote: > What is the name of the local company that converted your camera, here in Edmonds, Wa? The company is called LifePixel. They didn’t convert my D70; I did. […]

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Gear

Re: SBig, to be or not to be?

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Art Morton wrote: > Jimbo, > > > SBIG: > > You comment about getting an SBIG is prophetic. The problem really is that it’s a *self-fulfilling* prophecy. There’s no reason that […]

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Focuser / Optics

Re: call me crazy

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Art Morton wrote: > You hit the cruxes of the matter, the secondary size. The other thing > I remember battling was f/ and being able to see the secondary when > […]

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Long Exposure Photography

Re: focusmax + maxim 5.03

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Art Morton wrote: > J, > > This is a 12 Bit system for color conversion so it has to use a Bayer > Matrix so the colors have to be > […]

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Re: FWHM and pixel size

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Art Morton wrote: > Something is just not right with the figures below. I need to read > this again and understand the color conversion. JPG is resized. Size it up to […]

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Focuser / Maintenance / Optics

Re: scope getting dialed in

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Art Morton wrote: > With a couple more moon nights you will have a perfectly calibrated G-11 I hope so; It really is a lot of new stuff to learn. Someday I’m […]

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binning = bad?

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A, I saw your post in MaxIM group about FM + Max + Nikon. The response was not worded as well as I’d like, but it sounded like the guy was saying […]

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Focuser

shortest possible drawtube?

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A, In order that I can use my scope for either visual or photo, I have this long-ass drawtube. It’s racked in for the camera, racked out for the eyepieces, everything works, […]

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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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