- My Losmandy G11T review
- FIELD TEST: THE NOH CT-20 ALT-AZ MOUNT
- SkyTee-2 Alt/Az Mount Review
- SharpStar Askar ACL200 200-mm f/4 astrographic telephoto lens
- A review of the Unistellar EVscope
- Astrotrac 360 tracking platform – first impression
- FIELD TEST: CARL ZEISS APOCHROMATIC & SHARPEST (CZAS) BINOVIEWER
- Omegon 32mm 70º SWA eyepiece review
- Review of iPolar hardware and software for polar alignment
- Review of the Hubble Optics 14 inch, f/4.6 Premium Ultra Light Dobsonian Tele...
- My experience with the Starizona Landing Pad
- A quick Review of the MIGHTY MAX 12V 100AH BATTERY
- Nexus II Review
- New Moon Telescopes 20”F/3.3 Review
- FIELD TEST OF THE BAADER MAXBRIGHT® II BINOVIEWER
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.
Aug 01 2021 05:00 AM | PhilH in Phil Harrington's Cosmic Challenge
What is your favorite globular cluster? Apart from those two southern hemisphere beauties, Omega (ω) Centauri and 47 Tucanae, my answer has to be M22 in Sagittarius. Admittedly, the star chains and "propeller" formation within M13 in Hercules (profiled in the July 2017 Cosmic Challenge) are visually intriguing. But there is just something about the remarkable richness of M22 and its surrounding star field that calls to me.
Jul 08 2021 08:57 AM | cookman in This Month
Highlights: Comet Journal, Martian Landers, Meteor Showers, Planet Plotting, July Moon Focus Constellations: Ursa Minor, Draco, Cepheus, Cassiopeia, Camelopardalis, Ursa Major, Coma Berenices, Virgo, Bootes, Corona Borealis, Hercules, Ophiuchus, Aquila, Lyra, Cygnus
Jul 01 2021 05:04 AM | Ochad in Articles
I have owned a large Star-Liner Equatorial Mount with 2 inch axes for over 50 years and in that time it has held a homemade 8 inch f/7 Newtonian, a homemade12.5 inch f/8 Newtonian, a 14 inch SC, a 6 inch refractor, an ATM 10 inch true Cassegrain.
Jul 01 2021 05:00 AM | PhilH in Phil Harrington's Cosmic Challenge
Fifty years ago this month, on July 30, 1971, Commander David Scott and Pilot James Irwin navigated their Apollo 15 lunar module, nicknamed Falcon, to land among the lunar Apennine mountains, while Alfred Worden remained in orbit aboard the command module, Endeavor. Scott and Irwin guided Falcon to a soft landing between the edge of a deep precipice and the base of a tall mountain to establish Hadley Base, as the landing site became known.
Jul 01 2021 05:00 AM | Michael Covington in User Reviews
I strongly recommend the ACL200 for wide-field astrophotography. It also has some uses for (fully manual) nature and landscape photography. The optical performance is exceptional, and the physical construction is unusually well suited for astronomical use.
Jun 01 2021 05:00 AM | PhilH in Phil Harrington's Cosmic Challenge
Is there any constellation in the sky more universally known than Ursa Major, the Great Bear? Most of us learned of it as a child, perhaps from a relative or friend, or possibly as a Scout working our way toward a merit badge in astronomy. The seven brightest stars in the group, known in North America as the Big Dipper or in England as the Plough, always draw our attention, especially in the spring when they ride highest in our sky.
Jun 01 2021 05:00 AM | StevenBellavia in Articles
Like other new CMOS cameras being introduced into the astrophotography market, the ZWO ASI 294MM Pro seems to be a strange beast (but not in a bad way). The first thing to notice is that it has a “jump” in performance at Gain 120.
Jun 01 2021 05:00 AM | garyhawkins in Articles
This short white paper aims to demonstrate that it is possible for the average amateur astronomer who is engaging in digital astronomy to step into the world of photometry. Why might you consider this? Well, it opens up opportunities for advancing one’s knowledge in the hobby, as well as the potential to participate in valuable citizen science projects, such as the upcoming Exoplanet Watch program. Participating in a course on exoplanet transit measurements hosted by the Boyce-Astro Foundation started my interest in photometric analysis. I wondered if my modest telescope setup could carry out such measurements.
Jun 01 2021 05:00 AM | bmwscopeguy in User Reviews
Well here is another product that has received a lot of hype and press, but without divulging much useful information about the telescope itself. Well needless to say, the hype worked on me….and I took delivery of my (used) Unistellar EVscope today.