TAG ED80
Astro knowledge / Deep Sky / Gear / Long Exposure Photography / Optics
M27, The Dumbbell Nebula in Vulpecula
It was this image that convinced me that I needed to do the filterectomy on the Nikon D70. According to S&T, The Dumbbell, The Coathanger, and Albireo form an equilateral triangle.
Deep Sky / Gear / Long Exposure Photography
M13, Globular Cluster in Hercules
M13, Globular Cluster in Hercules (the autoguider at Ad Astra Observatory is operational!)
Deep Sky / Gear / Long Exposure Photography
M13, Globular Cluster in Hercules
M13, Globular Cluster in Hercules (the first shot from Ad Astra Observatory)
Deep Sky / Gear / Long Exposure Photography
M42, The Great Orion Nebula
larger version The difference made by going to a dark sky site is stark.
Deep Sky / Gear / Long Exposure Photography
B33, The Horsehead Nebula in Orion
A decent try at this nebula which has a large range of brightness, from gigantic Zeta Orionis to the wispy details of the back-lit cloud.
Deep Sky / Gear / Long Exposure Photography
M42, The Great Orion Nebula
It’s amazing to me when I look back at the gear I was using and the results I was getting with my first few astrophotos.
Deep Sky / Gear / Long Exposure Photography
NGC 1499, The California Nebula in Perseus
Film shot from the backyard in Brentwood. 2 frames of 30min each on E200.
Deep Sky / Gear / Long Exposure Photography
M16, The Eagle Nebula in Serpens
The Eagle Nebula in Serpens, M16 Film: E200 Camera: K-1000 Lens: ED80 (600mm f/7.5), prime focus Guiding: ST-4 Exposure: 15min Date: September 9, 2004
Deep Sky / Gear / Long Exposure Photography
NGC7000, The North America Nebula in Cygnus
The birth of a nemesis. NGC7000 is so big and relatively dim that it’s a challenge to pick up the whole nebula in one shot. This is a full 35mm frame, carefully […]
Deep Sky / Gear / Long Exposure Photography
M31, The Great Andromeda Galaxy
Another treatment of the same data (Reprocessed March 18,2005): Film: E200 Camera: K-1000 Lens: ED80 (600mm f/7.5), prime focus Guiding: ST-4 Exposure: stack of 11 images, 7×20min, 4×45min Date: September 9, 2004
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.