- interstellarum Deep Sky Guide Desk Edition
- Chronicling the Golden Age of Astronomy: A History of Visual Observing from...
- Omegon Mini Track LX2 Review
- Review of the APM 152 ED serial number 245
- THE BURGESS 24MM MODIFIED ERFLE & 10MM ULTRAMONO
- APM 140mm DOUBLET APO REFRACTOR
- Comparison of the Boltwood II and Sky Alert Cloud Sensors
- Chile Dilly!
- MONO & BINO VIEWING WITH THE BAADER MORPHEUS 17.5MM EYEPIECE
- The Eye of the Flak (Das Auge der Flak)
- COMPARING THE MASUYAMA 25MM 52°, 25MM 65°, AND 26MM 85°
- BRESSER 4 Inch f 4.5 AR 102XS Refractor visual observers’ REVIEW
- New Moon Telescopes 16”f/4
- The Ages of Astrophotography 1839-2015
- Stardust Gallery LED Lightbox and Metallic Print Review
CNers have asked about a donation box for Cloudy Nights over the years, so here you go. Donation is not required by any means, so please enjoy your stay.
May 08 2019 11:16 AM | Gork in Articles
I've started writing about this aspect of fabricating the world's largest monolithic mirrors a number of times. Each time I get to about ten pages before I realize how truly complex this phase of fabrication is. So, I am going to assume, for the sake of this account, that everything works as planned and there are no side tracks. That won't be true, but if I tell the real story, I'll never get done.
May 07 2019 11:33 AM | JTYoder2017 in Articles
The primary purpose of imaging with a filter in the city is to mitigate light pollution and help suppress the noise so that the signal of the target object becomes easier to identify. This is rather easily achieved for nebula type objects that emit at very specific wavelengths but much more challenging to accomplish for full-spectrum sources such as galaxies and globular clusters. Cutting down on city glare is becoming even more challenging as city lighting transitions from Mercury type lighting that emits at defined wavelengths to LED lighting that generally emits broad spectrum lighting.
Apr 14 2019 12:46 PM | Gork in Articles
How do you create the world's largest monolithic optical mirror? As the saying goes, “One bite at a time.” It is a unique process in that it is entirely linear. No aspect of the process can be done in parallel since each step is entirely dependent upon the preceding step.
Apr 07 2019 09:06 AM | Gork in Articles
Upon my retirement from the Army I did the typical Law Enforcement track. It only took a year with the Sheriff's Department to realize that I just didn't want to carry a gun anymore. While looking around for a challenging alternative I ran across an ad for a “Mechanition” (Read Gofor) at the Steward Observatory Mirror Lab. I was intrigued and applied for the position.
Feb 03 2019 12:24 PM | Augustus in Articles
Sometimes life’s greatest treasures are the unexpected. That’s how I feel writing this article. It was relatively recently that I embarked on building my 20”, and it’s been only six months since I penned the article on my 16”. Since that article, I’ve grown not only as an ATM, but also as a person and as a writer. I thought I’d share that growth here. ‘Tis the season of giving, after all!
Feb 03 2019 12:08 PM | PeterDob in Articles
A lot of ink has already been spent on this subject since many astronomy enthusiasts are wondering what the actual gain is observing with both eyes instead of only one. Let me begin by saying that this whole discussion is fairly pointless because observing with both eyes is a completely different experience than observing with only one. The feeling of total immersion that not even a 150° eyepiece can ever offer, the strange 3D-effect, the joy and relaxation of using both eyes… Personally, even if there were no light gathering gain at all I’d opt for a binoscope, regardless the expense. On the other hand there are people who’re having difficulties observing with both eyes. And finally there’s the big unknown factor: the human brain, which is both unpredictable and personal. So what’s the use of me writing this article? Because we astronomy enthusiasts have the unstoppable need to quantify everything. How much more can you see with a 14” telescope compared to a 10”? How does a refractor compare to a Newtonian (please, no, not again…)? Or… how much more can you see with both eyes? So here I go… explaining my 2 cents on this, for what they’re worth.
Feb 03 2019 11:52 AM | bmwscopeguy in Articles
What if you could set up once, and after that, simply sit in your seat and observe? And if this telescope mount was GOTO, then even better. Even if you had to set up only once per observing session, it would be beguiling, but if you had an observatory, where everything was as you left it last session, it would be nirvana…
Dec 24 2018 11:29 AM | BillP in Articles
In 1992 the face of our cosmos changed. What had been hoped for, dreamed of, was finally confirmed. Our solar system was indeed not unique in the galaxy and there were other planets orbiting distant stars!
Dec 24 2018 10:28 AM | skaiser in Articles
This document is something I put together for the Daughter and her kids . It is a simple How TO Assemble/Setup the Evolution scope system. They are just beginning to learn how to setup-use the system and only use it a few times a month so far. So I thought this tutorial would make them more comfortable with the setup and storage of the system.
Sep 12 2018 08:26 PM | SiriusLooker in Articles
I first met Mike Clements (known to others as 1.8 meter Mike) in the early 90's. I had been delayed due to work at home for a trip to the Texas Star Party. By the time I arrived at the Texas ranch entrance, it was well after dark. As I was pulling in, I noticed a pickup truck on the right side of the road (outside of the ranch), and it had a large pole structure sticking up on the other side of it that my headlights caught briefly as I made my turn into the ranch. Unknown to me it was Mike, who had his 41 inch scope setup at the entrance of the ranch. In the early 90's it was very rare to see a 30 inch reflector, let alone over a 40 inch scope.