ATM / Electronics / Observatory / Technology

Dome automation-0.2-alpha – Wiring up the sensors

Tagged , , Leave a Comment on Dome automation-0.2-alpha – Wiring up the sensors

When we last left the dome automation project, the azimuth encoders were fried. I had a working circuit on the breadboard. I wired the cable rolled from the original, and soldered it […]

READ MORE

ATM / Electronics / Maintenance / Observatory

Encoders tested.

Tagged , Leave a Comment on Encoders tested.

I zapped the encoders in the new assembly immediately. So I tore it apart, ordered new bits from Digikey, and breadboarded it. Once I got the interface cable worked out, I now […]

READ MORE

Gear / General / Maintenance / Mount

NJP – oh, so *that’s* the problem

Tagged , , Leave a Comment on NJP – oh, so *that’s* the problem

The NJP can GOTO again! Art and I spent some time diagnosing and then fixing the problem, which turned out to be an unplugged Dec encoder cable. Now that the mount is […]

READ MORE

Techniques

Polar Alignment Calculations

Tagged Leave a Comment on Polar Alignment Calculations

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 […]

READ MORE

Gear / Observatory / Telescope

Special Guest Star takes the mount at Hilltop O

Tagged , Leave a Comment on Special Guest Star takes the mount at Hilltop O

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 […]

READ MORE

General / Maintenance / Observatory

Dome shutter is motorized again!

Tagged Leave a Comment on Dome shutter is motorized again!

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 […]

READ MORE

ATM

Trixie 2017 – tube mods

Tagged Leave a Comment on Trixie 2017 – tube mods

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 […]

READ MORE