Evolution of Comet Holmes’ 2007 Apparition

Comet Holmes (17P/Holmes) livened up the fall and winter skies with a sudden outburst in 2007. Images credit and copyright by James Burnell with Tele Vue TV-NP127is telescope

It was ten years ago that comet Comet Holmes (17P/Holmes) livened up the fall and winter skies with a sudden outburst that brightened it from mag. 17 to above naked-eye mag. 2.8 on October 23/24, 2007. Its coma subsequently expanded to a diameter greater than that of the sun! Well placed in Perseus for northern hemisphere observers, it became an instant imaging target for amateur astronomers. Images often show it as a “ball’ because it was positioned such that from Earth, observers were looking straight down along the tail. Continue reading “Evolution of Comet Holmes’ 2007 Apparition”

Tele Vue Holiday Sale!

For a very limited time, enjoy a 10% discount on Tele Vue eyepieces, Paracorrs, Powermates™ and Barlow lenses from your authorized  Tele Vue dealer.  Now is the time to step up to Tele Vue quality! Better act quick because this factory authorized promotion only lasts 5-days: from 12:01 am EST November 23, 2017 to 11:59 pm EST November 27, 2017 (EST = New York time).

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Q&A with Tele Vue’s Al Nagler

This interview of Al Nagler by Brian Ventrudo was published in The Equinox newsletter of AstronomyConnect.com on October 31, 2017. Reprinted with permission

A Q&A with Al Nagler
Looking Back (and Ahead)
with Tele Vue’s Co-Founder

David and Al Nagler

Introduction

When Al Nagler talks, amateur astronomers listen.

Nagler, of course, is a legend in the amateur astronomy community, the founder of Tele Vue Optics along with wife Judi, and inventor of the Nagler eyepiece. For two generations he’s been a fixture at star parties and astronomy expos where he dispenses wisdom and demonstrates his latest optical creations, all while establishing bonds and friendships with hundreds of stargazers over the years with his combination of razor-sharp technical acumen and boundless enthusiasm.

Al was beguiled by astronomy and stargazing after a visit to Hayden Planetarium with his father in the late 1940s. He grew up in the Bronx and had the talent and good fortune to attend the famous Bronx High School of Science, the alma mater of thousands of renowned engineers and scientists, including eight Nobel Prize winners. As part of a class project, Nagler used the school’s facilities to design and build an 8-inch f/6.5 Newtonian reflector that weighed 350 lbs! In time, Al put his talents to work at the nearby Farrand Optical Company from 1957-1973, where he helped develop the large and complex optical systems for NASA’s Gemini docking and Apollo lunar landing simulators. Not a bad way to make a living!
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Jupiter & Venus Conjunction – Nov. 13, 2017

Morning planets group together in mid-November.

Early risers will note that Jupiter & Venus have been approaching each other in the deep-morning twilight of the eastern sky. Jupiter ascends ever higher each morning while Venus settles lower onto the horizon. The two worlds cross paths on the morning of November 13th when they will be about a half-moon width apart.  Continue reading “Jupiter & Venus Conjunction – Nov. 13, 2017”