- Rebuilding my CGE Pro
- COUNTING SUNSPOTS WITH A $10 OPTICAL TUBE ASSEMBLY
- Hubble Optics 14 inch Dobsonian - Part 2: The SiTech GoTo system
- iStar Optical’s Phantom FCL 140-6.5 review
- Who’s Afraid of a Phantom: Istar Phantom 140mm F/6.5, that is?
- SHARPSTAR 94EDPH APOCHROMATIC REFRACTOR
- 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
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 2022 05:00 AM | PhilH in Phil Harrington's Cosmic Challenge
Last month's challenge, to visually spot Abell Galaxy Cluster 2065, could have been subtitled "Go Big or Go Home." That challenge was tough in even that largest amateur telescopes. The good news is that this month's challenge turns the tables. All you need are your eyes. And decent skies.
Jul 05 2022 09:51 AM | cookman in This Month
Highlights: Comet Journal, Martian Landers, Meteor Showers, Planet Plotting, July Moon Focus Constellations: Ursa Minor, Ursa Major, Draco, Cepheus, Cassiopeia, Camelopardalis, Lynx, Leo Minor, Leo, Coma Berenices, Canes Venatici, Bootes, Corona Borealis, Hercules, Lyra, Cygnus
Jul 01 2022 02:45 PM | retroformat in Solar
I encourage anyone with a minimum of technical facility to build their own vintage solar telescope, and join with me on the sunspot counting journey. Next to the study of Earth-grazing asteroids, I can think of no more important branch of astronomy. Aside its obvious ties to climate change science, solar astronomy is extremely important to our understanding of, and ability to predict flares and coronal mass ejections, which have the potential to devastate modern society (google "Carrington Event").
Jul 01 2022 05:00 AM | MarkMittlesteadt in Articles
Maybe 50 years ago, back when light pollution didn't rob us of the glorious views we no longer have access to, as a child of the 60's I used to lay on my back out in the yard at night and just look up and wonder what was "out there". I watched with hypnotic interest on our old black and white TV the first humans land and set foot on the Moon. I was hooked. I even had models of the Apollo rockets, orbiter and lunar landing module and of course toys of all kinds that were about pretending to be an astronaut. My imagination was consumed with what was "out there" in the Universe. It was more obsession than interest.
Jul 01 2022 05:00 AM | PhilH in Phil Harrington's Cosmic Challenge
This month, our telescopes will transport us across an incredible 1.2 billion light years (some sources quote 1.5 billion) to Abell Galaxy Cluster (AGC) 2065. More than 400 galaxies are huddled within AGC 2065, but because of that incomprehensible distance, the light from these massive collections of stars has dwindled to nothing more than the faintest whisper. Seeing even the slightest hint of AGC 2065 takes more than just aperture; it also takes supremely dark skies, a trained eye, and an accurate chart of the region.
Jun 01 2022 05:00 AM | PhilH in Phil Harrington's Cosmic Challenge
Finding this month's challenge object is no challenge at all unless you are trying to starhop to it from the inner city. That can be tough, but for everyone else, Izar (Epsilon [ε] Boötis) is visible easily by eye to the northeast of brilliant Arcturus (Alpha [α] Boötis) as one of six stars that make up the constellation's distinctive kite shape. Swing your telescope its way and it still looks like a single star, as it does to the naked eye. So, what's the attraction?
Jun 01 2022 05:00 AM | cookman in This Month
Highlights: Comet Journal, Martian Landers, Meteor Showers, Summer Solstice, Planet Plotting, June Moon Focus Constellations: Ursa Minor, Ursa Major, Draco, Cepheus, Cassiopeia, Camelopardalis, Lynx, Leo Minor, Leo, Coma Berenices, Canes Venatici, Bootes, Corona Borealis, Hercules, Lyra
May 07 2022 06:17 PM | cookman in This Month
Highlights: Comet Journal, Martian Landers, Meteor Showers, Planet Plotting, May Moon Focus Constellations: Ursa Minor, Ursa Major, Draco, Cepheus, Cassiopeia, Camelopardalis, Lynx, Leo Minor, Leo, Coma Berenices, Canes Venatici, Bootes, Corona Borealis, Hercules, Lyra
May 01 2022 05:00 AM | Michael Covington in Articles
In what follows I want to tell you about three things I've done to improve my early-model iOptron GEM45 mount. With a bit of adapting, you can apply the same ideas to many other mounts, both iOptron and other brands.
May 01 2022 05:00 AM | PhilH in Phil Harrington's Cosmic Challenge
Whenever my neighbor (I'll call him "Joe") sees me at one of my telescopes, he'll come over and ask "so, how far can you see with that thing?" Every time! You've also probably met someone like Joe. Well, unless you have a double-digit telescope, your answer should probably be "2.4 billion light years."