Star Party 2009 | Largest IYA 2009 Project of Sri Lanka [Article]  | 09/23/09 | by Mike Loffland Star Party 2009 will take place at the premises of University of Peradeniya, Kandy, Sri Lanka from 6.00 pm (local time) (12:30 UTC/GMT or 08:30 EDT) onw. . . My "First Telescope": the Great Lick Refractor [Article]  | 09/18/09 | by Matthew Wedel When I was 12, a friend brought a telescope catalog to school. It was from Celestron. It was the first time I'd ever heard of a Schmidt-Cassegrain. I bo. . . 80mm Apogee Refractor [User Review]  | 09/17/09 | by Jesse Carroll I've had a prototype built for me by Sheldon Faworski, in 1995. It has a semi-apochromat of 560 mm F: 7. Sourced in Canada, for $80.... long gone days!!. . . The Galileoscope [User Review]  | 09/17/09 | by Paul Kinzer The Galileoscope is a "cornerstone project" of the International Year of Astronomy (IYA). It was designed by a team of folks who wanted to make the nig. . . What’s Up Scutum [Article]  | 09/14/09 | by Steve Coe I have heard from several nice folks who mentioned that they have printed out each month's article and then used them in the field. I am very happy abo. . . Upgrade Yourself with IP4AP [Article]  | 09/14/09 | by Craig Stark We're going to take a bit of a break from the series on SNR and explore another side of astrophotography. It's a side that many inclined to think of this . . . Celestron SkyScout [User Review]  | 09/14/09 | by Jim Welisek I expected something about the size of a monocular range finder but the unit is more the size of a pair of binoculars, (but lighter). The form fitting (s. . . Small Wonders: Observing the Hubble Sequence in the Fall Northern Sky [Article]  | 09/12/09 | by Tom Trusock After reading The Day We Found the Universe (Marcia Bartusiak), I got to thinking about Hubble's galactic classification scheme. How much, exactly, can . . . Goto or Not to Goto - Losmandy G11 [User Review]  | 09/10/09 | by David Milone That is the question. At least it was for me in my personal struggle to find a new mount for astrophotography. . . Sky-Watcher 5" Collapsible Dobsonian Mount Telescope [User Review]  | 09/10/09 | by Peter Legere The telescope comes well packaged and protected from shock, making purchasing on the internet a viable option for those who are far removed from a retai. . . A Little Piece of Russian Magic [User Review]  | 09/10/09 | by Neil English There's never been a better time to own a high-quality refractor. Improvements in manufacturing techniques, computer aided design and the ready availabil. . . Earthwin PFS-B Binoviewer [User Review]  | 09/09/09 | by Steve Hubbard At NEAF in 2008, I purchased a new PFS-B binoviewer from Earthwin optical to use with my 16" scope. This is the unit that has the 3X power switches and the. . . 12" Skywatcher Collapsible Dobsonian [User Review]  | 09/02/09 | by Phillip Creed There were various used 12" dobs that I found on the used market for $500 - $700, but they were all tubes, and I wasn’t looking forward to the "bearhug". . . A New Refractor Concept: "The Wall Hypochromatic Refractor" [Article]  | 09/01/09 | by John Wall During research into retrofocally corrected refractor systems, I noted an effect during experiments with an optical bench cum telescope apparatus, that is,. . . Fraunhofer Diffraction and It's Effects on Aperture Masks - A Primer [Article]  | 09/01/09 | by Chris Lord The Fraunhofer diffraction pattern produced by any particular aperture or obstruction placed across that aperture can be modelled using a Fourier Transform. . . The Coathanger [Article]  | 09/01/09 | by Phil Harrington The three brilliant stars of the Summer Triangle -- Vega, Deneb, and Altair -- ride high in the sky this month, framing the gentle glow of our Milky Way ga. . . September Skies 2009 [Article]  | 09/01/09 | by Dick Cookman Highlights: Comet Journal, Martian Landers, Planet Plotting, Autumnal Equinox, Meteors, September Moon. . .