ATM / Gear / General / Observing Reports / Telescope

Trixie the Dob – suddenly, everything is like clockwork

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Epiphany is a wonderful thing. You thrash around for a long time, trying to figure out the solution to a wooly problem, and then all of a sudden, it comes to you. […]

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ATM / Gear / Telescope

Trixie the Dob – tweaks towards perfection

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As with any other Beta test, taking Trixie out under the stars revealed a few things that still need a little tweaking. In particular, the altitude movement is garbage. So, I spent […]

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ATM / Gear / General / Observing Reports / Telescope

Trixie the Dob – first light!

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Well, nobody can say I didn’t pay my dues on this one. Between weeks of rain and countless trips to the hardware store, I think I earned myself a little starlight. After […]

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ATM / Gear / Telescope

Trixie the Dobsonian

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Well, I finally completed the Dobsonian mount for Trixie. The idea is that I wanted to have a backup scope for use while the NJP is in use doing photography. I learned […]

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ATM / Gear / Telescope

Trixie Dob conversion, making progress

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I’ve moved into the CNC part of the program on the Dob base. I started with an easy one. The rocker bottom just needed a countersunk hole for the pivot bolt. It […]

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ATM / Gear / Telescope

Trixie Dob conversion — CNC parts laid out

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I did a little bit of cleanup on the parts (I cut the rocker sides down and chopped the bearings in half, and did some sanding). Most of the rest of the […]

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ATM / Gear / Telescope

Trixie Dob conversion – getting underway

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I have been playing around with the numbers on a Dob base for Tirixie. My design requirement was to try to keep the conversion down to stuff that could be cut out […]

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Astro knowledge / General

Asteroid discovery, 1980-2010

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This is a very cool data visualization of the recent advances in astronomy technology. Note that the number of discoveries doubles every 2 years between 1997 and 2003; in 6 years, the […]

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ATM / Gear / Mount / Telescope

Veronica Dob conversion

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Veronica is now a Dob/Equatorial Newtonian! I have been wanting to do this for years. I am forever sitting around on a nice night, camera cranking away on the mount shooting something, […]

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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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