23 April 2021
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  • [ 21 April 2021 ] Monster flare from Proxima Centauri dwarfs any ever seen from the Sun News
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  • [ 7 April 2021 ] Astronomers spot merging galaxies hosting dual quasars News
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News

U. S. Naval Observatory releases 228 million-star catalogue

27 April 2015 Astronomy Now

The United States Naval Observatory’s Robotic Astrometric Telescope (URAT) near Flagstaff, Arizona began to systematically image the sky every clear night for a period of just over two years, culminating in the URAT1 catalogue of precise positional data on about 228 million stars.

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News Headlines

  • Monster flare from Proxima Centauri dwarfs any ever seen from the Sun

    21 April 2021
  • Ingenuity Mars ‘copter makes historic first flight on red planet

    19 April 2021
  • Mars helicopter software update sets stage for Monday test flight

    11 April 2021
  • Astronomers spot merging galaxies hosting dual quasars

    7 April 2021
  • RAS warns of growing light pollution as satellite fleets expand

    1 April 2021
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