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Hubble 5-Star Artificial Stars For Sale

Price - $19.95

Ad Number: 104623

Posted: 30 Apr 2017

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The Hubble 5-star Artificial Star has been featured in the New Product Showcase (p.40) in the September, 2009 issue of Sky & Telescope, New Products section in Nov, 2009 issue of Astronomy, and the July/August (Vol 3 Issue 4) of Astronomy Technology Today magazines.
Here are some excellent review articles on our 5-star(s):
Astronomy Technology Today Review Article
Cloudynights review article 1
Cloudynights review article 2
Astromart Review Article
The star test is the ultimate method to test and collimate your telescopes of any kind. The most and very much the only difficult part of doing the star test is that you need a star. Sadly, a real star is not always available, and you really may not want to spend your precious observation time doing that even when it is available. Of course, you will also need a good tracking system for doing star test with the moving star. After all the troubles, due to the turbulence, the real star may not even reveal the true quality of your telescopes or give you a perfect collimation. An artificial star will provide you an excellent alternative mean to do the star test anytime and anywhere you want, without all the drawbacks of the real stars. However, the problem with the artificial star is that you really need different size of artificial stars for different telescopes of different apertures with different F/#, and even for the same telescopes but at different distances, and under different lighting environment.
The innovative Hubble 5-star Artificial Star(s) is a perfect solution to this problem. It has 6 bright white LEDs with 5 precision pinholes (50/100/150/200/250 microns). It will enable you to test practically all the telescopes of different apertures with different F/#, from any reasonable distances needed, and under different lighting environment. Only star test can guarantee a perfect collimation for all kinds of telescopes, including refractor. Please understand that laser based collimation tools will not work with refractor.
-You can instantly find out which star is best for your particular telescope at that particular distance under that particular lighting environment by simply choosing the smallest possible star, but which still give you clear defocused image
-You can even adjust the brightness of the stars by twisting the LED head. -You can mask out any 4 of the 5 stars with a provided magnetic mask.
-Please make sure the cleanness of the mask, and only put it on when needed to prevent the possible blockage of the pinholes.
-The unit should be kept in a clean Ziploc bag when not used; separated from the magnetic mask.
-It is powered by 3 AAA batteries (Not Included).
With Hubble 5-star Artificial Star(s), telescopes are truly easy to test and collimate! Our Hubble 5-star Artificial Star(s) is priced affordably at the special introduction offer at $19.95 + $5 (S&H). Ready to ship!
You can order here


  • Condition New
  • Location Hong Kong

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