Astro knowledge / ATM / Gear / General / Maintenance / Telescope

Trixie gets the laser test

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My astro-Jedi friend Art came over to kick Trixie’s tires a little. He brought a laser, did a rough collimation, and then hung some weight off the focuser (in the form of […]

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ATM / Gear / General / Maintenance / Telescope

Trixie comes out of hibernation

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When I left CA, I had just finished doing a pretty major rebuild of Trixie, which as you recall is my attempt at a 13″ Newtonian Astrograph. The newly-trussed frame seems very […]

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Gear / Solar System Photography / Telescope

Trixie the Astrograph — first light!

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I had a few small tweaks to do, and I was ready to roll with Trixie 2011. I focused the camera on the moon; this involved no small amount of gymnastics, as […]

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ATM / Gear / Telescope

Trixie Rebuild 2011 — mounted up at last!

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Trixie needed a new mounting plate in order to get installed and balanced on the NJP. The Triad bar took a little finagling to get in place; I had to build a […]

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ATM / Gear / Mount / Telescope

Trixie Rebuild 2011 – Mounting plates need work

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WIth the NJP back in the observatory, I spent a little time trying to get Trixie mounted up, to test out the rebuild. I was a little worried about how the mounting […]

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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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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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