The Nightly News
An Astronomy blog by Joe Bauman, Salt Lake City
Blog 12: Galaxies
Joe Bauman
07
April
2017

More Posts

  1. Blog 19: "It'll take your breath away"
    17 Jun, 2017
    Blog 19: "It'll take your breath away"
    Every day we live with our local star, sometimes squinting at it for a moment at noon, often watching it set amid glorious pastels in the evening, occasionally aware of its shimmer through rainclouds during storms -- but how many have truly seen the sun? Its strange arches called prominences and the whitish atmosphere of beyond-scalding-hot gas extend far past the dazzling disk, but we almost never observe them because sunlight is so powerful that it completely hides these other
  2. Blog 18: The void
    07 Jun, 2017
    Blog 18: The void
    Carolyn Tuttle, president of the book club for which my wife, Cory, is treasurer, had an interesting question for me: "Does present-day physics accept the concept of void in the universe?" The group, Paideia, studies classical literature and Mrs. Tuttle was researching controversies in ancient Greek philosophy. The definition of void, according to Webster’s Ninth New Collegiate Dictionary (1988) is “empty space.” If you go by the Merriam-Webster online dictionary, the meaning is more precise:
  3. Blog 17: Sometimes
    27 May, 2017
    Blog 17: Sometimes
    I had not gone on a good astrophotography expedition since October 2015, and now that I had a new CCD astronomy camera I was anxious to try it out on galaxies – particularly NGC 6946, the Fireworks Galaxy, with Patrick Wiggins' newly discovered supernova. On May 5 I had attempted the project but didn’t get started because of the failure of the DC-to-AC converter that powers the telescope focuser. Now, on Tuesday, May 23, armed with a new converter, I drove back to a site near Vernon, Tooele
  4. Blog 16: Patrick Wiggins’ super supernova
    17 May, 2017
    Blog 16: Patrick Wiggins’ super supernova
    On Saturday night my friend Patrick Wiggins discovered his third supernova, and this one’s a treasure. It is a Type II supernova in the famous Fireworks Galaxy. Let's define the term. A supernova is the catastrophic death explosion of a star, the largest blast known since the Big Bang. *** A Type I supernova happens when a white dwarf star sucks material away from a nearby star that is locked to it by gravity in a binary arrangement. Its mass grows so great that it blows up. *** A Type II