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Try using a concave mirror in your telescope, you will be able to view what you're convex eyes can not.


It appears to be an older version of the Bushnell Voyager Sky Tour 800x70mm Refractor Telescope Full manual here


The introduction of the paper mentions some alternative interpretations put forward in earlier papers. It seems as if this "problem" has been noted earlier. This new solution to the problem beats earlier solutions. But maybe it is an evolving discovery process which again will invent new better explanations? In addition to those mentioned in the paper, I ...


What else could it be? Very simply, it could all be a coincidence... What they have done is noted that objects in the outer solar system have their orbits grouped in interesting ways. Someone suggested this might indicate there was a heavy planet (or core of a giant protoplanet) that influenced their orbits in this way; the recent announcement is the ...


Yes, Gaia makes extensive use of this technique. The measurement accuracy of star positions for the brightest stars is 10 to 20 micro- arcseconds – up to 100 times better than that the precursor mission, Hipparcos; this angular resolution corresponds to the observed diameter of a Euro coin on the Moon, viewed from Earth. The underlying principle is the ...

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