TAG Pumpkin
Gear / Maintenance / Optics
Pumpkin's field flattener — needs work
I bought a WO FF/FR for Pumpking, but I still need to figure out how to tune it. It’s still not quite right. Can’t use it as a widefield lens if the […]
ATM / Maintenance / Observing Reports
Leaving myself in a "broken" state is not good
It’s supposed to be 90° tomorrow. Given past years, I’m expecting about 2 or 2.5 more months of clear before the rainy season. I’m just in “no working telescopes” mode at the […]
Pumpkin – new field flattener
Pumpkin’s field flattener showed up last night. It’s a 0.8x reducer, too, which I didn’t really want, but I’m dealing with it. I didn’t do a great job at focusing (just eyeballed […]
Pumpkin field flattener / reducer?
I’m trying to decide if the curved field on the AT66ED is going to bug me or not. I think that it is. But the field flattener unit is also a focal […]
Pumpkin's huge FOV
It was clear last night, but the forest fires put up so much smoke that I couldn’t see anything in the way of stars. I just calculated Pumpkin’s FOV and compared that […]
Deep Sky / Gear / Long Exposure Photography
M45, The Pleiades Cluster in Taurus
M45, The Pleiades, Open Cluster/Reflection Nebula in Taurus Second try at M45 with the new 66mm refractor. Still a little noisy; under a very bright waxing gibbous moon. 2 hours of integration […]
Deep Sky / Gear / Long Exposure Photography
B33, The Horsehead Nebula in Orion
Pumpkin first light. I was wrapping up for the night, knew I had the FOV to sort of aim in the general area and probably get my target, and shot one 3min […]
Deep Sky / Gear / Long Exposure Photography
M45, The Pleiades Cluster in Taurus
First light with Pumpkin, the new 66mm refractor. It’s been awhile since I hand-focused, and I really need my diffraction spike focusing rig. This little scope has plenty of FOV to spare, […]
Deep Sky / Gear / Long Exposure Photography / Optics
M42, The Great Orion Nebula
A ho-hum version of M42. The FOV on Pumpkin is really too side for this target (I had the whole Sword of Orion in the FOV. vertically.) but I was having fun […]
Deep Sky / Gear / Long Exposure Photography
M31, The Great Andromeda Galaxy
At long last, I have a scope that can give me a shot at M31 again. This is a “test shot” from the first light of Pumpkin, the new 66mm refractor. There […]
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.