HOME/ABOUT  Prayer  SCOTUS  ProLife  BangList  Aliens  StatesRights  ConventionOfStates  WOT  HomosexualAgenda  GlobalWarming  Corruption  Taxes  Congress  Fraud  MediaBias  GovtAbuse  Tyranny  Obama  ObamaCare  Elections  Layoffs  NaturalBornCitizen  FastandFurious  OPSEC  Benghazi  Libya  IRS  Scandals  TalkRadio  TeaParty  FreeperBookClub  HTMLSandbox  FReeperEd  FReepathon  CopyrightList  Copyright/DMCA Notice  Donate

Dear FRiends, Your loyal support makes Free Republic possible and your continuing participation makes FR the number one grassroots pro-life conservative forum on the planet! If you have not yet made your donation, please click here and do so now. Thank you very much, Jim Robinson

Or by mail to: Free Republic, LLC - PO Box 9771 - Fresno, CA 93794
Free Republic 2nd Quarter Fundraising Target: $88,000 Receipts & Pledges to-date: $29,873
33%  
Woo hoo!! And the first 33% is in!! Thank you all very much!!

Keyword: helixnebula

Brevity: Headers | « Text »
  • Astronomy Picture of the Day -- The Helix Nebula from Blanco and Hubble

    10/11/2014 9:28:32 PM PDT · by SunkenCiv · 10 replies
    NASA ^ | October 12, 2014 | (see photo credit)
    Explanation: How did a star create the Helix nebula? The shapes of planetary nebula like the Helix are important because they likely hold clues to how stars like the Sun end their lives. Observations by the orbiting Hubble Space Telescope and the 4-meter Blanco Telescope in Chile, however, have shown the Helix is not really a simple helix. Rather, it incorporates two nearly perpendicular disks as well as arcs, shocks, and even features not well understood. Even so, many strikingly geometric symmetries remain. How a single Sun-like star created such beautiful yet geometric complexity is a topic of research. The...
  • Astronomy Picture of the Day -- NGC 7293: The Helix Nebula

    01/10/2014 5:31:50 PM PST · by SunkenCiv · 12 replies
    NASA ^ | January 10, 2014 | (see photo credit)
    Explanation: A mere seven hundred light years from Earth, in the constellation Aquarius, a sun-like star is dying. Its last few thousand years have produced the Helix Nebula (NGC 7293), a well studied and nearby example of a Planetary Nebula, typical of this final phase of stellar evolution. A total of 28.5 hours of exposure time have gone in to creating this deep view of the nebula. Combining narrow band image data from emission lines of hydrogen atoms in red and oxygen atoms in blue-green hues, it shows remarkable details of the Helix's brighter inner region, about 3 light-years across,...
  • Astronomy Picture of the Day -- NGC 7293: The Helix Nebula

    10/05/2012 4:40:35 PM PDT · by SunkenCiv · 7 replies
    NASA ^ | October 04, 2012 | (see photo credit)
    Explanation: A mere seven hundred light years from Earth, in the constellation Aquarius, a sun-like star is dying. Its last few thousand years have produced the Helix Nebula (NGC 7293), a well studied and nearby example of a Planetary Nebula, typical of this final phase of stellar evolution. A total of 58 hours of exposure time have gone in to creating this deep view of the nebula. Accumulating narrow band data from emission lines of hydrogen atoms in red and oxygen atoms in blue-green hues, it shows remarkable details of the Helix's brighter inner region, about 3 light-years across, but...
  • Astronomy Picture of the Day -- The Helix Nebula from the VISTA Telescope

    01/31/2012 7:06:50 PM PST · by SunkenCiv · 10 replies
    NASA ^ | January 31, 2012 | (see photo credit)
    Explanation: Will our Sun look like this one day? The Helix Nebula is one of brightest and closest examples of a planetary nebula, a gas cloud created at the end of the life of a Sun-like star. The outer gasses of the star expelled into space appear from our vantage point as if we are looking down a helix. The remnant central stellar core, destined to become a white dwarf star, glows in light so energetic it causes the previously expelled gas to fluoresce. The Helix Nebula, given a technical designation of NGC 7293, lies about 700 light-years away towards...