TAG Target Selection
Re: M31
Art Morton wrote: > I will try that or pull that 80mm out of the box again. I do like > this image size and resolution however. I like the resolution, too. […]
Long Exposure Photography / Observing Reports
Re: These are some more from over the weekend.
Art Morton wrote: > M76 You and your damned postage-stamp objects. Try the *big* Dumbbell Nebula instead of the Little one. It’s nearly overhead right now. > M33 Wow. That is a […]
Uncategorized
Re: you so crazy
A, Greetings. Pocket change is fine. I have a couple of pieces that I need to dump myself. Need to get rid of that DSI before the price drops too low. Might […]
Trixie as a planetary scope
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. […]
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 […]
birthday images 2 – resolution
This article is talking about magazine quality, 300dpi printing. It suggests that 6mp is good for 8×10, and about 4x the resolution is needed for 16×20. however, Kodak says 1600×1200 is sufficient […]
Re: Pointing Model vs. Polar Alignment
Art Morton wrote: > > On Jun 9, 2008, at 9:13 AM, Jimbo S. Harris wrote: > >> Art Morton wrote: >>> I also have to find out how to handle that […]
On Well-known objects
M106 has been one of those “sleeper” galaxies — I’ve seen very few photos of it, but it’s big and interesting and has lots of little “friends” nearby. M57 is a tough […]
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.