Characterizing the local space density of double degenerate (DD) binary systems is a complementary approach to broad sky surveys of DDs to determine the expected rates of WD binary mergers, in ...

Abstract: From stitching video sequences point of view, an existing image stitching technique may have limitations on object movement or loss in the stitched video sequence due to the different ...

One of the questions I am sometimes asked is, "How do astronomers know how far away a star or a distant galaxy happens to be from Earth?" In our sky this week, there are three stars that have been ...

1 Department of Physics and Astronomy, University of Missouri, Columbia, MO, United States 2 US Naval Observatory, Astrometry Department, Washington, DC, United States This review paper discusses the ...

(Nanowerk News) In 1838, Friedrich Wilhelm Bessel won the race to measure the first distance to a star other than our Sun via the trigonometric parallax – setting the first scale of the Universe.

Fastest spacecraft ever to depart from Earth. Obtained during the 2015 flyby, photos of and measurement data from Pluto and its moon Charon show a bizarre, dynamic ice world. The second target, in ...

If I ask Google to tell me the distance to the nearest star, I get an immediate answer: 4.22 light-years. Light takes four years to travel to Alpha Centauri, more than 250,000 times the 93 million ...