This week’s guest blog post is written by Gavin Orpin. The blog came about as a result of a discussion between Gavin and Tele Vue President David Nagler at the recent AstroFest 2019 show held at the Kensington Conference and Events Centre in London.
Coming from the U.K., using night vision for astronomy is very rare due to the cost and difficulty of getting the night vision equipment. I estimate there are only around 6 night vision astro users in the whole of the U.K.. However, I was fortunate in that one of my local astronomy club members is the leading U.K. proponent of night vision astronomy, so I was able to see first-hand this technology in action.
[Night Vision] has given me a completely new aspect of the hobby to explore.
Given the significant light pollution, living near central London does create some big issues for visual astronomy. However, night vision has given me the ability to observe DSOs (Deep Sky Objects) with my Tele Vue-85 APO telescope that I would have no chance with normal glass eyepieces. It has given me a completely new aspect of the hobby to explore — for that I am very grateful to my astro club friend and Tele Vue for making it possible for a U.K. based astronomer. In addition, when I do get the chance to visit a dark site, the night vision works even better and I can see things I never dreamed of when I began observing the stars.
This year all eyes will turn to the Moon to mark the 50th Anniversary of the first Moon landing. The Moon is the natural first target for new amateur astronomers, yet all too often as observers become seasoned, the Moon becomes a nuisance that blots the stars from the sky. This week we explore the Moon through the eyes and talented hands of Michel Deconinck. As you will see, there is much to see in the monthly dance between shadow and light on the lunar surface.
Michel Deconinck is an artist in the South of France with a passion for astronomical watercolors. He is very involved with the international astronomical community and his artistic works have been published in magazines, scientific journals, and displayed at conferences and school events. His artistry is augmented with a background in nuclear physics, engineering and astrophysics.
This guest blog post is by Tele Vue-85 owner Chris Owen. Chris is a physician in Orange County California, where he lives with his wife and 3-year old son. You can see more of his images on AstroBin.
I got started in astronomy in the 1990s while I was still in High School. I spent cold clear winter nights in Northern New York learning the basics together with my father on an 8″ Schmidt Cassegrain. I remember trying to manually guide my first prime focus images of M42 with the 2,000mm focal length SCT, shooting 35mm film in 10°F temperatures. The results were predictably flawed and after I went off to college the scope and gear were put away. I went west after finishing school and my astronomy interest faded away under the light polluted sky of Southern California.
This week’s AstroFest 2019 show, at the Kensington Conference and Events Centre in London, inaugurates Tele Vue’s exhibition season. I’ll once again be guest of The Widescreen Centre. Want to talk about Tele Vue eyepieces? Have questions on DIOPTRX? Need advice on imaging with Tele Vue telescopes? Please find me at The Widescreen Centre stand in the Exhibition hall, open 9am to 6pm, on February 8th and 9th. You can find complete details on the Exhibition Hall on the AstroFest website.
This guest blog post is written by Phil Ressler, a longtime amateur astronomer who lives in Los Angeles, though his observing life began on the east coast. Phil is a veteran software industry executive, currently CEO of Sixgill, LLC.
I had never seen pinpoint or round stars — apart from observing our round Sun.
I’m old enough to remember when “pinhole” eyepieces with “soda straw” views defined what a telescope offered to the average amateur astronomer. More than anyone, Al Nagler, and more than any company, Tele Vue, changed that by opening up the sky and making it easier to explore through wider field viewing. Mr. Nagler and his company also showed us that a relatively rich field refractor could not only capably serve as an amateur’s sole telescope: it is the best telescope to own if you’re only having one. We can thank Al Nagler and Tele Vue for laying the foundation for the way visual astronomy is pursued today. Yet despite all that, until I tried a DIOPTRX™ on my 22mm Panoptic last year, I had never seen pinpoint or round stars — apart from observing our round Sun. I’ve been observing the sky through scope optics since 1961, my astigmatism never absent. For people like me, DIOPTRX™ is arguably Tele Vue’s most essential product, because it makes all of Al Nagler’s original work in eyepieces and refractors unmistakably worthwhile to the astigmatic viewer.
It’s summer in the southern hemisphere and Bruno Yporti, in Londrina, State of Paraná, Brazil, had great weather for imaging last Sunday’s Total Lunar Eclipse of the “Supermoon” over the Americas. At his private, roll-off roof, “Ophiuchus Observatory”, he readied his Tele Vue-85 APO refractor with Tele Vue 2x Powermate and Canon 6D DSLR on an Atlas EQ-G mount for the event. The sky was clear, with almost no wind, when he took the above single exposure — about 8-minutes after mid-totality. In this phase of the eclipse, the Moon was illuminated by the refracted light skimming along the entire circumference of the Earth. The deep-red light bathing the Moon is what we see at sunrise and sunset on the horizon.
Sky watchers are in for a double-treat with lunar and planetary events on the schedule in the next few days. Brilliant Jupiter and Venus dazzle in the morning as the planets approach conjunction. Sunday night in the Americas will be dominated by the total lunar eclipse.
The premier event of 2019 awaits the end of the year when Mercury appears to pass over the face of the sun (as seen from Earth) on November 11thfrom 12:35 to 18:04 UT. Due to its diminutive size — only 10-arc-seconds in diameter — eclipse glasses over your eyes will not do: you’ll need a properly solar filtered telescope, binocular, or telephoto lens to view it (see Viewing/Imaging Resources at bottom). Don’t miss it as the next transit of Mercury won’t be until 2032.
Tele Vue founder Al Nagler was one of 400,000 people estimated to have worked on the Apollo moon landing program. The year 2019 marks the 50th anniversary of the culmination of all that effort: the first manned Moon landing. Al’s involvement with that mission and derivative work for the Air Force during that period would inspire him to found Tele Vue Optics and influence our eyepiece designs for decades to come.