TAG Image Processing
Re: call me crazy
Art Morton wrote: > You hit the cruxes of the matter, the secondary size. The other thing > I remember battling was f/ and being able to see the secondary when > […]
call me crazy
A, Just ordered a 3/4” travel drawtube from Moonlite. I have to wait for their next CNC run to get it, but he’s only charging me $50 for it. I should be […]
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Re: This is a data redo. This is data from 11/08 to 2/09
Art Morton wrote: > > On Feb 15, 2009, at 3:29 PM, Jimbo S. Harris wrote: > >> >> On Feb 15, 2009, at 9:24 AM, Art Morton wrote: >> >> Looks […]
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image processing mojo
http://www.starshadows.com/documentation/index.cfm?DocID=3 http://www.dl-digital.com/photoshop_basics.htm http://starizona.com/acb/ccd/software/soft_total_ngc253pm.aspx http://www.dl-digital.com/astrophoto/P2-Astro/Astro-Workflow.htm
Re: success! M51 full calibration
Art Morton wrote: > The silly little galaxies are quite visible too. (: I hardly ever see shots of M51 with the little guys showing. Also, I *never* see shots with that […]
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Re: calibration stuff
Art Morton wrote: > I have not seen an answer yet. Go read again. Doug himself answered. If they’d write a better manual (or scrape the user group for stuff that should […]
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calibration stuff
Now that I have a lightbox, I am trying to get a “fully calibrated” image put together. But MaxIM is being persnickety about something and won’t apply the flats. I don’t know […]
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blue flats
A, Remember when I tried to do some flats and it caused the image to go monochrome? straight out of the manual: “It should also be noted that flat-fielding one-shot color images […]
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flats and their color
A, My understanding is that Max doesn’t care if the flats are blue — it takes each pixel and averages it against the overall average value, which means that you end up […]
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 […]
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.