ARCHIVE February2009
Lightbox for taking flat-field frames
Check out my new astro toy. I made it myself, as you can see. Cost me ~$15 (that’s half structure and half electronics). Took 2 evenings (could have finished in an afternoon […]
Gear / Long Exposure Photography / Observing Reports
Re: So, what is skyglow? Must need a dark site
A, Sigh. I wonder what I would have done if I’d started doing astronomy now instead of 4 years ago. This guy went from a Canon 400D + Orion ED80 + Orion […]
Astro knowledge / General / Long Exposure Photography / Observing Reports
Re: So, what is skyglow? Must need a dark site
Art Morton wrote: > awesome photo not shot by me > > The way you get dark sky in the Bay Area is to get to the top of a local foothill […]
focuser settings
1) rack focuser all the way in, set this to 30,000 (pos1) 2) drive focuser out until it stops, see what FM says the focuser pos is (pos2) 3) set one end […]
focuser direction swap
http://www.lazyfocus.com/docs/EasyFocus/EasyFocus_Manual.htm hold the “in” button (one closest to DB9) during bootup.
Re: focusmax + maxim 5.03 + binning
Art Morton wrote: > > On Jan 31, 2009, at 12:04 PM, Jimbo S. Harris wrote: > >> Let me screw around with that and see if I can get MaxIm and […]
Re: focusmax + maxim 5.03
Art Morton wrote: > J, > > This is a 12 Bit system for color conversion so it has to use a Bayer > Matrix so the colors have to be > […]
Uncategorized
Re: FWHM and pixel size
Art Morton wrote: > Something is just not right with the figures below. I need to read > this again and understand the color conversion. JPG is resized. Size it up to […]
Focuser / Maintenance / Optics
Re: scope getting dialed in
Art Morton wrote: > With a couple more moon nights you will have a perfectly calibrated G-11 I hope so; It really is a lot of new stuff to learn. Someday I’m […]
ATM / Observatory / Technology
Re: Remote capable
Art Morton wrote: > You are almost to the point where you could image from Germany. Almost. I would need to put in some ethernet power and a garage door opener for […]
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.