“Asteroid 2005 YU55’s pass by Earth will be closest to date by an object this large that we know about in advance. A smaller asteroid, called 2011 CQ1, actually came closer to Earth without hitting – a record-setting approach to within 3,400 miles (5,471 kilometers) — but it was not seen in advance.
The asteroid’s near-Earth flyby is also the first since 1976 that astronomers have known about in advance for such a large object. The next known flyby with a big space rock will occur in 2028, NASA scientists said.”
Perhaps the last line of that quote should read:
The next known flyby with a big space rock will occur in 2028, that is of course, if we see it, unlike CQ1 and the many more that we just don’t know about.
If you believe that is fantasy and we have the technology to see these space rocks, consider the fact that Asteroids are named for the year they were discovered. That means: 2005 YU55 we’ve known about for about 6 years. 2011 CQ1 was only discovered this year and only after it passed near our orbit.
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Lose a perfect alignment or astrophoto because your telescope tripod got bumped? These night vision red spectrum marker lights might help.
They’re small, emit night vision red spectrum light, and one nine volt battery will keep one lit for over 50 hours. No button battery nightmares. No annoying flash. Affix them to your tripod with supplied velcro or just use rubber bands.
Each package contains three lights, instructions, and velcro in a small reusable plastic bag.
Standard 9 volt batteries not included
Night Vision Telescope Tripod Marker Lights $11.99
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Bootleg Astronomy has scheduled their fifth annual star party for June 3-5 2011. You can register directly by going to http://www.bootlegastronomy.com/ and downloading a form to complete and mail with your payment. Your registration payment of $25 includes two nights campspace at Green River State Park in Harmon Illinois. Each person registered will receive 1 door prize ticket. Raffle drawing will be held Saturday at sundown. (You must be present to win.) Event t-shirts are $15. Registration is limited to about 50-60 people so book your space now. Bootleg Astronomers reserve the right to refuse any registration. Online registration is available from now to May 13th for a small fee ($2.00) at http://www.CavemanAstronomy.com .
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