Category: Deep Sky
Deep Sky / Long Exposure Photography
NGC281, The PacMan Nebula in Casseiopeia
This is my first shot of NGC281. I attempted it a couple of years back, but came up essentially empty. Normally, the Casseiopeia Milky Way is not available until autumn, but I […]
Deep Sky / Long Exposure Photography
NGC 6888, The Crescent Nebula in Cygnus, from Coyote Lake, CA
In retrospect, I probably should have shot RGB from the dark sky site and left Ha for the backyard. In addition, it was very windy, so I probably should have dumped Cassie […]
Astro knowledge / Deep Sky / Long Exposure Photography
M57, The Ring Nebula in Lyra
The C9.25 finally brings some pixels to this tiny object. Shooting with a DSLR brings a different perspective on “useful astronomy targets” compared with most dedicated astrocams. In the beginning, there was […]
Deep Sky / Long Exposure Photography
NGC6939, Open Cluster in Cygnus
Again, Cygnus is not really my first thought when it comes to open clusters (at least, not ones that seem to have no nebulosity surrounding them). But this cluster could rival anything […]
Deep Sky / Long Exposure Photography
NGC6946, Spiral Galaxy in Cygnus
Cygnus is not generally the area of sky you think of when you think “hey, showpiece galaxy”. But here you go. NGC 6946 has been dodging me for years, so I decided […]
Deep Sky / Long Exposure Photography
NGC4565, Edge-on Spiral Galaxy in Coma Berenices
Normally, I don’t go in much for edge-on galaxies. I just don’t think that I really get enough pixels to work with for the amount of effort that goes in. But NGC4565 […]
Deep Sky / Long Exposure Photography
M100, Spiral Galaxy in Virgo
Another night hunting galaxies in Virgo. This time I went after M100, which I was pretty certain to be a spiral. I had some initial difficulty getting Elbrus working. It took about […]
Astro knowledge / Deep Sky / General / Long Exposure Photography / Technology
M87, Elliptical Galaxy in Virgo
I have avoided the Virgo Galaxies for years. The reasons are many, but chief among them is that a lot of the Virgo galaxies are elliptical, which essentially means that they look […]
Deep Sky / Long Exposure Photography
Ha and Light pollution and Springtime
When I got home today, I tried to process the stack that MaxIM had created of my M81 shot from last night. That didn’t go well. So I re-stacked the subframes in […]
Deep Sky / Long Exposure Photography
Imperfection
Another long clear night. Since the webcam was already installed and focused, I started the evening working WCS to refine my polar alignment. Azimuth was essentially perfect. Elevation started around 200 and […]
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.