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Hubble Trubble

Posted by David Russell 07/11/2015 12:00AM

Hubble Trubble

Putting a fork into myths about Hubble's Galaxy classification

The Visible Matter – Dark Matter Coupling Problem

Posted by David Russell 08/28/2013 12:00AM

The Visible Matter – Dark Matter Coupling Problem

In the current model of the Universe favored by most cosmologists the composition of the Universe is ~4.5% visible (baryonic) matter, 22.7% non-baryonic dark matter, and 72.8% dark energy...

The Likely Place RV Resort

Posted by Tony Hallas 08/15/2013 12:00AM

The Likely Place RV Resort

... a beautiful grassy field for tent campers ( empty ), spotlessly clean bathrooms with hot showers, very nice camp sites with some shade trees right by the grassy field, a nice restaurant ... and if that wasn’t enough ... a challenging, well maintained 18 hole golf course! All this under the darkest skies in the US.

Classification of Planets and Moons in the Solar System – A New Proposal

Posted by David Russell 07/24/2013 12:00AM

Classification of Planets and Moons in the Solar System – A New Proposal

The definition of a planet and where the division is between Solar System objects that are planets and those that are not planets is currently in a state of disagreement among scientists.

A Visit to Questar and Parks

Posted by Barry Kawaguchi 07/18/2013 12:00AM

A Visit to Questar and Parks

In the summer of 1997, on my quest to interview the great commercial telescope makers in American history for a book, I made a pilgrimage to one of the most famous small towns in telescope history: New Hope, Pennsylvania.

Tom Cave – The Early Years

Posted by Barry Kawaguchi 07/06/2013 12:00AM

Tom Cave – The Early Years

Tales of Movie Stars and Mogey Refractors

An Interview with Thomas A. Zappetti of Unitron

Posted by Barry Kawaguchi 06/13/2013 12:00AM

An Interview with Thomas A. Zappetti of Unitron

In August 1997, the rumors were flying among amateur astronomy circles about the demise of Unitron. Certainly, their ads had long disappeared from the pages of magazines they once graced, such as Sky and Telescope...

Interview with Al Nagler of TeleVue

Posted by Barry Kawaguchi 05/30/2013 12:00AM

Interview with Al Nagler of TeleVue

The first time I saw a Tele Vue refractor was when I was responding to an ad in the Cleveland Plain Dealer in 1995 for a Brandon 94mm refractor. I drove to the seller’s home in Mentor-on-the-Lake, and admired the baby-blue Brandon on a Unitron alt-azimuth mount, set up on the back porch overlooking Lake Erie. But another telescope next to it really took my breath away. It was a brass Renaissance on a Tele Vue Panoramic mount. “Are you selling that one?” I asked. I liked the Brandon. But I really wanted the Renaissance. I ended up buying both.

Telescope Nothing

Posted by Andy Sedlacek 05/29/2013 12:00AM

Telescope Nothing

The first in a running series :-)

The Mount Boys: Losmandy and Byers

Posted by Barry Kawaguchi 05/23/2013 12:00AM

The Mount Boys: Losmandy and Byers

In the world of commercial telescopes, if Byers mounts are the Mack trucks of telescope mounts, then Losmandy mounts are the Dodge Ram trucks. The two companies are only located about 120 miles apart, in North Hollywood and Barstow, but both seemed on the other side of the world from each other, in scale, size, market and old school and new school philosophy.

An Interview with Barry Greiner of D&G Optical

Posted by Barry Kawaguchi 05/09/2013 12:00AM

An Interview with Barry Greiner of D&G Optical

But after visiting Norman and Robert Edmund, I had a choice. Go see the sights in Philadelphia, like the U.S. Mint and Independence Hall, with my wife? Or spend the afternoon at D&G Optical talking to Barry Greiner about telescopes?

An Interview with Steve Kufeld, Inventor of the Telrad

Posted by Barry Kawaguchi 05/02/2013 12:00AM

An Interview with Steve Kufeld, Inventor of the Telrad

On a trip to Southern California in June 1997 to track down some of the influential figures in the history of commercial telescopes, I hoped to find Steve Kufeld, the inventor of the world-famous Telrad telescope sighting device.

Interview with Tom Johnson of Celestron

Posted by Barry Kawaguchi 04/26/2013 12:00AM

Interview with Tom Johnson of Celestron

In the spring of 1998, Tom Johnson was living a comfortable life in retirement in Palm Springs, Calif., after being out of the telescope wars for some 18 years and having sold Celestron to Diethelm Holding Co. of Zurich.

Interview with Norman and Robert Edmund of Edmund Scientific

Posted by Barry Kawaguchi 04/15/2013 12:00AM

Interview with Norman and Robert Edmund of Edmund Scientific

Before World War II, if you were well-to-do and wanted a telescope, you could buy one from Tinsley Laboratories, J.W. Fecker, the old Brashear Co. in Pittsburgh and the venerable Warner and Swasey. If you weren’t wealthy, you had to build it yourself. That’s the world Norman Edmund entered when he got his start selling surplus optics by mail order.

An Interview with Dick Nelson of The Optical Craftsmen

Posted by Barry Kawaguchi 04/08/2013 12:00AM

An Interview with Dick Nelson of The Optical Craftsmen

In 1977, when I flew to California to track down and interview former commercial telescope makers, I was under the impression by talking to some people in the industry that Dick Nelson of The Optical Craftsmen was deceased. But Tom Cave in Long Beach told me