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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.
Sep 02 2017 12:01 PM | bunyon in Articles
Traveling to the southern hemisphere is a topic that pops up frequently on Cloudynights and other amateur astronomy discussion groups where northern observers and imagers congregate. I’ve written this piece to try to share some of what I learned about doing amateur astronomy in Chile and Argentina. Obviously, even in six months it is impossible to do everything or go everywhere so this isn’t a comprehensive guide. Still, I hope it’s helpful and that it inspires a few people who have been wavering in their decision to head south.
Sep 02 2017 10:29 AM | cookman in This Month
Highlights: Comet Journal, Martian Landers, Meteor Showers, Autumnal Equinox, Planet Plotting, September Moon Focus Constellations: Perseus, Cassiopeia, Andromeda, Pegasus, Cygnus, Lyra, Aquila, Ophiuchus, Hercules, Draco, Cepheus, Ursa Minor, Ursa Major, Camelopardalis
Sep 01 2017 09:48 AM | PhilH in Phil Harrington's Cosmic Challenge
The star 61 Cygni is not bright, nor is it visually distinctive. To the eye alone, it looks just like any other 5th-magnitude point of light deep in the Milky Way flowing through the Swan. But looks can be deceiving! This unremarkable looking star is indeed quite remarkable for its unusually high rate of proper motion. By watching and plotting it against the backdrop of stars over the course of relatively few years, its position shifts at an extraordinarily fast pace. At present, 61 Cyg has a proper motion of more than 5 arc-seconds per year.
Aug 29 2017 12:45 PM | The Ardent in Articles
Successful binoviewing entails one major requirement: both eyes must receive light from the objective. Now this sounds kinda obvious, right? Well it's not that easy. Most astronomical binoculars and binoviewers are hinged. This allows the two eyepieces to be spaced so that light enters both eyes. Some of us have a narrow IPD and facial structure that prevents optimal eye placement. In my case, the nose. It won't fit between some binocular eyepieces. It won't fit when binoviewing with complex, wide body eyepieces.
Aug 03 2017 10:35 AM | PhilH in Phil Harrington's Cosmic Challenge
Enthusiasts think nothing of jetting around the world just to witness the few brief moments of a total solar eclipse. And with good reason, for all who behold the majesty of totality will give impassioned testimony to its unbridled glory. A total solar eclipse is the most beautiful and emotionally charged celestial event of all.
Aug 03 2017 10:30 AM | cookman in This Month
Highlights: Comet Journal, Martian Landers, Meteor Showers, Solar Eclipse, Planet Plotting, August Moon Focus Constellations: Perseus, Cassiopeia, Cepheus, Cygnus, Lyra, Aquila, Ophiuchus, Hercules, Corona Borealis, Bootes, Draco, Ursa Minor, Ursa Major, Camelopardalis
Jul 02 2017 09:00 AM | cookman in This Month
Highlights: Comet Journal, Martian Landers, Meteor Showers, Planet Plotting, July Moon Focus Constellations: Cassiopeia, Cepheus, Cygnus, Lyra, Aquila, Ophiuchus, Virgo, Hercules, Corona Borealis, Bootes, Draco, Ursa Minor, Ursa Major, Camelopardalis
Jul 01 2017 09:33 AM | PhilH in Phil Harrington's Cosmic Challenge
In last month's column, we paid a visit to the Moon and the crater pair of Messier and Messier A. This month, we head back out into deep space to examine one of the most spectacular entries in Charles Messier's catalog: M13, the Great Hercules Globular Cluster.
May 31 2017 01:20 PM | PhilH in Phil Harrington's Cosmic Challenge
Summer is in the offing here in the Northern Hemisphere and the longest day of the year is at hand. While many of us enjoy the warmer weather, the dark of night comes late in the evening and leaves all too early the following morning. So while deep-sky observing is limited, we can still enjoy viewing our Moon even if the sky is still bright. Yes, observing challenges await us on our nearest neighbor in space.
May 31 2017 08:01 AM | cookman in This Month
Highlights: Comet Journal, Martian Landers, Meteor Showers, Summer Solstice, Planet Plotting, June Moon Focus Constellations: Leo, Cancer, Gemini, Auriga, Perseus, Cassiopeia, Cepheus, Cygnus, Lyra, Draco, Hercules, Bootes, Ursa Minor, Ursa Major, Camelopardalis, Lynx