Author
Andrew Burwell

Andrew Burwell

Designer, astrophotographer, and Mac app developer. Founded Mac Observatory over 9 years ago to help astronomers get the most from their Macs. Now building native macOS apps for the astrophotography community. Based in Houston, TX.

A new year, new mount, new camera, new scope.
Field Notes

A new year, new mount, new camera, new scope.

Late last year as galaxy season began to start, I got out my EdgeHD 11 scope to start shooting those small targets. I had been

Jan 20, 2020 5 min read
Imaging with the William Optics RedCat 51, achieving great images with beginner equipment
Field Notes

Imaging with the William Optics RedCat 51, achieving great images with beginner equipment

I recently picked up a10Micron GM1000 HPS mount. It’s a serious piece of equipment, but not responsible for these images. A lot of people

Dec 4, 2019 2 min read
Upgraded to the Pegasus Astro Ultimate Powerbox V2
Field Notes

Upgraded to the Pegasus Astro Ultimate Powerbox V2

There’s a few reasons I’ve made some resent upgrades to my equipment. A few weeks ago I had set up for a night

Oct 21, 2019 4 min read
The tale of the Cocoon Nebula in three images.
Imaging

The tale of the Cocoon Nebula in three images.

I started imaging the Cocoon Nebula on myEdgeHD 11” setupsome time last week. I was able to get in two full nights during clear weather.

Aug 24, 2019 3 min read
The RedCat 51 has reached its final form
Field Notes

The RedCat 51 has reached its final form

I’ve finally finished getting all the pieces together for this little scope. Pictured here is the William Optics RedCat 51 refractor telescope,Celestron CGXmount,

Jul 31, 2019 2 min read
William Optics RedCat 51
Reviews

William Optics RedCat 51

I’ve been really interested in theWilliam Optics RedCat 51since the original announcement. A few web bloggers got ahold of early versions of this scope,

Jul 5, 2019 5 min read
Mac Observatory is on Instagram!
News

Mac Observatory is on Instagram!

I finally set up an Instagram account. I’ll be posting my images there, but will still post them here on the site as well.

Jul 2, 2019 1 min read
Using Astro Pixel Processor to calibrate and integrate multiple imaging sessions
Tutorials

Using Astro Pixel Processor to calibrate and integrate multiple imaging sessions

The beautiful thing about astrophotography is that the effects of imaging are additive. You can essentially shoot the same object, night after night, even with

Jun 18, 2019 8 min read
Breathing new life into M101
Imaging

Breathing new life into M101

One really cool aspect of imaging deep sky objects is that the photons of light come into the camera randomly. This makes it possible to

May 6, 2019 3 min read
Imaging Star Clusters with the AT6RC and the ZWO ASI071MC-Pro
Imaging

Imaging Star Clusters with the AT6RC and the ZWO ASI071MC-Pro

I spent a few nights this week trying out my color camera, the ZWO ASI071MC-Pro on the AT6RC. I really love the pixel scale

Apr 16, 2019 1 min read
Imaging M51 Whirlpool Galaxy with the ZWO ASI071MC-Pro
Imaging

Imaging M51 Whirlpool Galaxy with the ZWO ASI071MC-Pro

After a rocky start with my EdgeHD 11 telescope, I decided to move the main imaging camera over to the AT6RC telescope I have. It

Apr 15, 2019 1 min read
Celestron EdgeHD 11"
Reviews

Celestron EdgeHD 11"

Going Big The EdgeHD 11" represents a significant step up in aperture and focal length from the 6" Ritchey-Chrétien I had been

Mar 24, 2019 2 min read