ATM / Deep Sky / Long Exposure Photography

Trixie first light

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First light! I decided to press ahead and put on the mounting plate tonight (same day as the tubes got cut). Just in time for night to fall, I finished up and […]

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ATM

Trixie Construction photos

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And with the aluminum tubes finally cut, here it is! Trixie weighs in at 26 pounds as she sits. If you look closely, you’ll notice that there are no mounting plates and […]

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ATM

Trixie, a 13.1" f/4.5 Astrograph

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May 2008 to July 2008 First light: August 1, 2008 I had been avoiding “large” telescopes, because weight is critical to an astrophotographer, and I was worried about overtaxing my mount. Also, […]

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ATM

Trixie "first light" photos

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I decided to use some non-point-source light for my first light. Helps when I had to chop the “tubes” twice to get the camera to focus. Running a saw in the dark […]

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ATM / Gear

Telescope "first light" photos

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I put in some temporary “tubes” so I could check the focal length of the telescope. The varnished pieces look really cool. I was not really prepared for how big the scope […]

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ATM

Trixie Construction photos

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To check the focal length, I set the scope up on a pair of sawhorses, and pointed it at a radio tower several miles away atop one of the local hills. These […]

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ATM

Trixie Construction photos

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The tubes are going to be aluminum, but because of my design, they have to be cut to exactly the correct length. So I decided to use some spare 2×2s I had […]

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ATM

Trixie as a planetary scope

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I really want to shoot some planetary shots with that big mirror. ‘m embarrassed to say that the palm tree has conspired to keep me from shooting any Jupiter yet this year. […]

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ATM

ATM: varnish – lessons learned

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I am looking forward to getting some photons on this thing. Might be able to get the scope constructed between the 2 trips.

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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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