Category: Long Exposure Photography
Deep Sky / Gear / Long Exposure Photography
M13, Globular Cluster in Hercules
M13, Globular Cluster in Hercules This is a fairly large stack (70 2-minute images), all taken unguided from my new G-11 mount. The mount is really a big improvement over the CG-5GT. […]
Astro knowledge / Long Exposure Photography
spectral lines
…unless using a pretty narrowband Ha filter, Ha and SII are basically the same (656 vs 671). OIII should be the next filter to get. http://www.narrowbandimaging.com/images/crab_composite_hd.jpg
Deep Sky / Gear / Long Exposure Photography
M27, The Dumbbell Nebula in Vulpecula, composite
This is a stack of the previous 2 images of M27. The 5 minute image had nice blue nebulosity, and the 30sec images had some highly textured red, so I decided to […]
Deep Sky / Gear / Long Exposure Photography
M27, The Dumbbell Nebula in Vulpecula
This is the first shot after I performed the UV/IR filter removal on the D70. Note that these images are 30 seconds long, 10 times shorter exposure than the image taken two […]
Deep Sky / Gear / Long Exposure Photography / Techniques
M8, The Lagoon Nebula in Sagittarius
This is from the first night after I performed the “filterectomy” on the Nikon D70. This is a stack of 12 30 second images shot from my light-polluted Newark backyard (”total imaging […]
Deep Sky / Long Exposure Photography / Observing Reports
Re: Ad Astra Observatory photo updates
Hi Jimbo, I liked the dark horse image in particular. Looks good. Alex On Aug 7, 2006, at 11:58 AM, Jimbo S. Harris wrote: > Hi all, > > Now that the […]
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 / Long Exposure Photography / Observatory / Observing Reports
Re: Latest Astrophoto
Sweet Jimbo! I am glad all is working. Is this with the new lens you ground? Cliff At 10:21 AM 6/23/2006, you wrote: >Hi all, > >I picked up this shot last […]
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.