- Wireless Telescope Control for Celestron (and Compatible) Scopes
- A Review of Teeter STS18
- MesuMount 200 Review
- First Light with the Prototype 8x42 Space WalkerTM 3D Binoculars
- INTERSTELLARUM DEEP-SKY ATLAS (FIELD EDITION) REVIEW
- THE BAADER BBHS-SITALL SILVER DIAGONAL
- Explore Scientific AR 102
- Review: davejlec's Paralellogram Mount
- Annals of the Deep Sky, Volumes One and Two
- Discovery 17.5” Split Tube Dobsonian Telescope
- REVIEW OF SUMERIAN OPTICS ALKAID 16” TRAVEL SCOPE
- Astrotrac TP3065 Pier Review
- Apo-tmosphere: Gutekunst ADC Review
- Optolong LRGB Filter Testing and Comparison with Baader LRGB Filters
- First Light Review: Teeter Custom TT Planet Killer 16" f/5.4
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.
One look at the beautiful astrophotos posted here on Cloudynights and it’s quite evident that we live in a vibrant and colorful universe. But when we swing our binoculars (and telescopes) skyward, most of what we see visually are varying shades of gray. What's up with that?
Highlights: Comet Journal, Martian Landers, Meteor Showers, Mother Goose and the Headlands, Planet Plotting, April Moon
Focus Constellations: Camelopardalis, Ursa Major, Ursa Minor, Draco, Cepheus, Cassiopeia, Perseus, Auriga, Taurus, Gemini, Cancer, Lynx, Leo, Coma Berenices, Canes Venatici, Bootes, Hercules
Bridging the constellations Coma Berenices and Virgo stands the Wild West for binocular astronomers, where only the brave trod. You may know it as the Coma-Virgo Realm of Galaxies. The Coma-Virgo galaxy cluster is the core of the Coma-Virgo supercluster, which embraces members far and wide. All of the galaxies within autumn’s Sculptor galaxy cluster, as well as our Milky Way as well as the rest of the Local Group of galaxies, are counted among the multitude.
Muons can be detected with cloud chambers, Geiger counters, and scintillator detectors, but can also be recorded with common digital camera CCD and CMOS chips which are sensitive to charged particles. Muon flux at the surface of the Earth averages approximately 1 particle per square centimeter per minute. The surface area of the APS-C camera sensor (22.3 x 14.9 mm) is 3.3 cm2, which means that we can expect on average 3 muon strikes on the sensor during a 1 minute exposure.
All these years the MesuMount200 served me very well. I’m yet to see any problem requiring a service. As a matter of fact I am yet to see a single frame that was lost due to the Mount. I think it nicely fits the niche of a midsize observatory or even a large field mount. It is priced very competitively. If you get one I’m sure you won’t regret making that decision.
I recently got a Carl Zeiss S-Tessar 300mm f5.6 barrel lens (no aperture nor shutter) that came out of an old copy machine or color comparator, not sure which. While only demanding $50-$100 on the used photographic market it was suggested it might make a good rich field telescope. So I made one.
Highlights: Comet Journal, Martian Landers, Meteor Showers, Spring Equinox, Planet Plotting, March Moon
Focus Constellations: Camelopardalis, Ursa Major, Ursa Minor, Draco, Cepheus, Cassiopeia, Perseus, Auriga, Taurus, Gemini, Cancer, Lynx, Leo, Coma Berenices, Canes Venatici, Bootes
The Space Walker 3D Binoculars were a complete joy to use and as effortless as any binocular. There was no adjusting needed for the 3D effects as it is built into the product with no adjustment capability for the user. As a result, these 3D binoculars were intuitive and effortless, providing bright, sharp, and nicely contrasted astronomical views with very pronounced levels of depth.
There's light at the end of the tunnel. The moment we've all been waiting for is almost here. Spring. SPRING! As we begin to say farewell to Orion, Taurus, Canis Major, and the rest of the winter enclave for another year, we welcome the stars of Leo, Ursa Major, and the rest of the spring collection. While not as bright as the winter stars, the spring sky carries with it many exciting targets to which we can raise our binoculars.
Overall, my experience at the Museum was incredible and it was nearly sensory overload to see so many vintage telescopes that I have only read about and all in one place. The zeal, skill, and dedication of these fellow amateur astronomers is creating something unique in the entire world, a hands on experience dedicated to preserving the entire legacy and heritage of telescopes and astronomy in Japan, without which many of us would never have received that first telescope under the Christmas tree in our youth.