- 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.
Highlights: Comet Journal, Martian Landers, Meteor Showers, Summer Solstice, Planet Plotting, June Moon
Focus Constellations: Lynx, Camelopardalis, Cassiopeia, Cepheus, Draco, Ursa Minor, Ursa Major, Bootes, Hercules, Lyra, Cygnus, Aquila, Ophiuchus, Libra, Virgo, Coma Berenices, Leo, Cancer
First its claws rise above our southeastern horizon. Then comes its brilliant red heart. Finally the hook-shaped tail makes an appearance. Scorpius, the Scorpion, is one of the most recognizable constellations in the entire sky. Within its borders is a bountiful selection of beautiful deep-sky objects strewn across some of the finest heavenly star fields. One of my favorite ways to spend a warm, clear summer evening is to simply sit back and casually scan the Scorpion's crooked body from head to toe. Along the way are many elegant asterisms, clusters and nebulae which provide hours of fascinating sky watching.
Wireless control of telescopes is quite handy as it frees the observer from being tethered to the scope mount by a wire. In fact it is clear that this is the wave of the future. Astronomy equipment tends to lag behind the technology curve—Celestron’s hand controllers are about 20 years out of date in terms of display, wireless capability, and other areas. (Vixen’s StarBook controllers are an example of a more modern design but they are not wireless). Fortunately it is possible to not only add wireless capability, but do so with equipment that most astronomers already have (smartphones, tablets) and that can handle observing lists, display planetarium views, give detailed information on objects observed, and even in some cases speak object descriptions. In this review I want to compare briefly the two major ways to implement wireless control of Celestron telescopes: (1) WiFi, using the Celestron SkyPortal (#93973) and (2) Bluetooth, using a serial Bluetooth adapter.
In addition to more or less regular, weather permitting, observing sessions at Dan Parker’s Sonoma farm, and occasional public outreach, the club undertakes one or two dark sky camping trips a year. In addition to dark skies and astronomy, these quests also feature daytime activities well outside the day-to-day for most of us.
Highlights: Comet Journal, Martian Landers, Meteor Showers, Grand Traverse Astronomical Society, Planet Plotting, May Moon
Focus Constellations: Lynx, Ursa Major, Draco, Ursa Minor, Cepheus, Cassiopeia, Camelopardalis, Perseus, Auriga, Gemini, Cancer, Leo, Coma Berenices, Virgo, Bootes, Hercules, Lyra
For the better part of four years, I have called STS18 my own. To reiterate, it is the most gratifying astronomy-based purchase I have made yet. In this hobby, each purchase calls for careful deliberation and is circumscribed by a diﬀerent set of ﬁnancial thresholds. Every night, after wrapping up an observing session at Landis Arboretum, as I wend my star-sated self home while the world sleeps, my toes invariably thawing, I reﬂect on the night and the views. Most poignantly, I reﬂect on the friends with whom I share the stars and the gear which has bound us together and furnished our friendships. While our hobby is not cheap, its most important parts could never be priced.
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.