TAG FOV and other Calculation
Accessory / Focuser / Gear / Maintenance / Observing Reports / Techniques / Technology
FocusMax – relearning the V-curve
Things have changed a lot since the last time that I ran Focusmax. Among other things, I have built up a whole new astro-PC, and I never really understood FM well enough […]
finding OAG guide stars
http://www.cloudynights.com/ubbarchive/showflat.php/Cat/0/Number/1691614/page/413/view/collapsed/sb/9/o/all
Trixie rebuild – parts on-hand
I decided to move forward with the strings concept before trying to do a total rework. Things ended up being kind of expensive anyway; the parts to finish off the strings turned […]
A Smattering of MaxIM logs
These are some MaxIM logs from the past few runs.
Astro knowledge / Deep Sky / Long Exposure Photography
Pumpkin's Return — A breath of fresh air
After 10 days of fighting Veronica, I’d had enough. Tonight, I swapped the camera back to Pumpkin, rebalanced, and tried my luck at two targets. With Cassiopeia showing above the house, I […]
Astro knowledge / General / Maintenance / Optics / Technology
G-11 – Guiding Oscillation
I stacked the 16 frames shot last night into a single GIF animation. There is a very strange “retrograde motion” thing going on during the course of an evening. I don’t know […]
Deep Sky / Long Exposure Photography / Maintenance / Optics
Another night of strange guide errors – IC 5146
OK, this is getting silly. Either I have no idea how to balance a telescope properly (which is not outside of the realm of reason), or balance is not the problem with […]
Deep Sky / Long Exposure Photography
Fall preview – NGC7635
Cepheus is still a little low in the sky to get a full treatment. But I wanted to see what would happen if I shot an object that was low enough that […]
Deep Sky / Long Exposure Photography
Veronica not showing her full potential — NGC 6888
I’m having a tracking problem with the mount. This is all eerily familiar. Things run fine for a couple of hours and then the wheels fall off. This results in only being […]
Deep Sky / Long Exposure Photography
Working my way through a "zoomed" set of the images from last month — Sh2-101
Saturday was cloudy, but Sunday night was clear, so I set up the scopes for another night of photography. I decided to shoot Sh2-101, The Tulip Nebula. I am still working on […]
RECENT UPDATE
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 […]
Gear / Observatory / Telescope
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 […]
General / Maintenance / Observatory
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 […]
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 […]
MOST COMMENTED
Observatory
Observatory 2.0 – Time has come today!
General / Maintenance
First Light, a deeper look
Mount / Observatory / Telescope
Observatory 2.0 – Result!
Observatory
Observatory 2.0 – The Pier goes in
Gear / General / Maintenance
Martin Farmer Wormblock installation notes
Deep Sky / Long Exposure Photography
NGC2244, The Rosette Nebula
Deep Sky / Long Exposure Photography
Another beautiful night.