Travelers In The Night

By: Albert D. Grauer
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  • Summary

  • A real "Science Snack" for anyone who is interested in the extraterrestrial.
    Dr. Al Grauer is a member of the Catalina Sky Survey which has led the world in near Earth asteroid discoveries for 17 of the past 19 years.
    The music is "Eternity" by John Lyell.
    Astronomy Asteroids Space NASA Comets Earth Impact Aliens
    Albert D. Grauer
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Astronomy
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Episodes
  • 824-Catalina Near Earth Comet

    824-Catalina Near Earth Comet
    Nov 22 2024
    My Catalina Sky Survey teammate Kacper Wierzchos was asteroid hunting with our Schmidt telescope on Mt. Bigelow, Arizona when he discovered and reported a fuzzy looking unknown object in a set of his images. There is no chance of an impact from Kacper's discovery, P/2019 Y3 (Catalina), in the foreseeable future.
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    2 mins
  • 311E-330-Comet Johnson

    311E-330-Comet Johnson
    Nov 19 2024
    Comet C2/2015 V2 Johnson was discovered by my Catalina Sky Survey teammate Jess Johnson on November 3, 2015. It travels on a hyperbolic path around the Sun which is highly inclined to the plane where the planets and most of the asteroids travel. Jess's comet's path takes it from deep space into the inner solar system slightly further from the Sun than the planet Mars. Although it will not get closer to the Earth than about 75 million miles it may out gas enough material to make it visible to the naked eye. Observers in the northern hemisphere will have their best chance to view Comet Johnson in April and May of 2017 while those south of the equator will be able to observe it until early 2018. Jess's Comet will come closest to the Sun in June of 2017 and then be slung into deep space by the Sun's Gravity. In February of 2037 Jess's comet will be further than Pluto's average distance to the Sun and be invisible to human telescopes as it moves in the direction a star 417 light years away in the constellation of Eridanus. It will take more than 12 million years to get to the vicinity of that distant star.
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    2 mins
  • 823 Jacqui's Impactor

    823 Jacqui's Impactor
    Nov 15 2024
    My Catalina Sky Survey teammate Jacqueline Fazekas was asteroid hunting in the constellation of Aquarius with our 60 inch telescope on Mt. Lemmon Arizona when she discovered a tiny asteroid which would impact the Earth in about 10 hours.
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    2 mins

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