The Great American Eclipse!
August 21, 2017
Get Ready NOW!
1991 Eclipse, San Jose del Cabo, Mexico, Copyright Roland and Marj Christen
Click image for larger version and additional details
|The magnificent corona of the sun is only
visible during totality of a solar eclipse when the moon
completely covers the sun. Don't
miss your opportunity to experience this unique natural phenomenon on August
21st. The last total eclipse to traverse the continental U.S. was in
1979 - 38 years ago!
On eclipse day, the path follows a diagonal course from the coasts of Oregon to South Carolina. You must be within the path of the eclipse, which is only 68 miles wide, in order to experience totality and see the corona. However, the entire U.S. outside of the path will enjoy the partial eclipse, including Alaska and Hawaii. Our neighbors Canada, Mexico and the Caribbean islands will also enjoy partial phases.
In order to enjoy the partial phases of the eclipse, whether or not you are on the center line, you must protect your eyes. Even when the sun is partially covered, the harmful rays can cause severe damage if you look at it directly without appropriate eye protection. Be sure to use a solar filter for the front of your telescope, binocular or telephoto lens for visual observation or photography.. The AstroSolar® Safety Film from Baader Planetarium is very economical and of exceptional quality whether you purchase a pre-made filter or make one yourself from the sheets tht we offer. If you enjoy observing the sun with a refractor on a regular basis, you may wish to invest in a Baader Cool-Ceramic Safety Herschel Prism.
For more information about eclipses and the eclipse path, check out these resources. Then, come back and stock up on solar accessories for a safe observing experience. Remember to order early before prices increase or we run out.
The Solar Eclipse Experience **Be sure to read this!**
https://eclipsemega.movie/simulator - Awesome representation of how the moon will track across the sun at any location.
Sky and Telescope magazine
Baader Planetarium Solar Products
Kendrick Solar Products
AstroSolar® Safety Film from Baader Planetarium
Who Should Order AstroSolar® Safety Film??
Everyone in the continental U.S., Hawaii, Mexico, Central
America, the Caribbean and parts of Alaska, Canada and South America will experience
partial phases of the eclipse. If you plan to use a telescope, binoculars or
your camera, you must use a proper solar filter on the front of your objective
lens to protect your eyes. DO NOT use an eyepiece filter since it is likely
to crack under intense heat from the sun, which can cause damage to your eyes.
AstroSolar® Safety Film 5.0 Optical Density (OD) is a very cost-effective and very high quality material to make your own solar filter. Be sure to order early for the best pricing and availability so that you can safely enjoy watching the partial phases as the moon covers the sun.
Astro-Physics is synonymous with optical quality so you know we are very particular about the solar filters that we recommend. AstroSolar® Safety film from Baader Planetarium produces the highest contrast and sharpness possible in your visual or photographic image, thus preserving the performance of your telescope. As you observe the partial phases before and after totality, you will see sunspots and surface granulation in fine detail.
The solar image is a very pleasing natural white without false blue or orange color. Other films and most glass filters produce a blurry bluish or reddish solar image, thereby cutting part of the spectrum. Especially with a falsely-colored orange sun, it is difficult to see faculae regions which are visible predominantly in the blue region of the spectrum.
Due to its neutral color balance, AstroSolar enables the use of various color or interference filters, which allow the observer to concentrate on certain spectral passbands for investigations of different layers within the solar "atmosphere".
AstroSolar® is essentially free of pinholes. The patented, high-density coatings are deposited on both sides. As a result, the chance of two pinholes overlapping each other is extremely low. Baader AstroSolar® safety film has been approved by the National Bureau of Standards for eye safety in Germany and is CE tested and approved. All processes connected to this product have been thoroughly tested. Coatings are inspected constantly for consistency to ensure your eye safety!
Important note: AstroSolar® 5.0 is not designed to work as an "eclipse shade" or handheld solar filter and is not suitable for naked eye solar observation.
AstroSolar® film was designed to serve as a precision optical window for telescopic and photographic solar observation without deteriorating the optical wavefront. AstroSolar film must be used in front of the optical element of an astronomical telescope, telephoto lens or binocular. For visual observation, you must view through an eyepiece. Do not make a handheld solar filter and hold it directly in front of your eyes.
If AstroSolar® 5.0 is being tested for visual observation ISO-specification, all tests must be performed with a telescope and eyepiece (or other optical instrument) added into the testing apparatus.
History and Goal of AstroSolar®
The development of AstroSolar® was only possible due to the incredible demand during the 1999 eclipse in Europe. Dozens of miles of film were destroyed during tests to produce the tooling and process techniques necessary to develop an absolutely uniform molecular structure for the substrate. Not to mention the related treatments, annealing and dual side coating that the film undergoes until it has attained the desired properties. The goal was to provide an inexpensive filter material that would preserve the optical quality of telescopes and binoculars throughout Europe. Since that time, observers around the world have used AstroSolar® for daily solar viewing as well as special events like solar eclipses and the Venus Transit in 2012.
You may also wish to add the Baader Solar Continuum Filter to your Solar observing arsenal. This filter, when combined with the AstroSolar® Safety Film gives increased contrast for finer detail in surface features.
AstroSolar™ is available in sheet form in two sizes: 200 x 290mm (7.9" x 11.4") or 500 x 1000mm (19.7" x 39.4") so that you can make your own filters very inexpensively. It is also available in premade filters from Kendrick Astro Instruments for your telescope or binocular.
Each order will come with these instructions:
"How To Build Your Own Solar Filter for Telescopes, Binoculars and Cameras"
"Constructing a Solar Filter for Binoculars with Baader AstroSolar® Film"
"Baader Planetarium - Technical and Safety Information"
Pricing Extended Through July 31st ***
The eclipse provides a perfect opportunity for clubs, schools, colleges and other groups to order several sheets or rolls of AstroSolar® film and host filter-making parties.
Plan an outreach...Alert your local media...Create public interest.
We provide discount pricing for multiple sheet orders through July 31st.
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This page was last modified: July 18, 2017
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Phone: 815-282-1513 Fax: 815-282-9847