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This page is about the interstellar cloud. For the UK Government Cloud initiative see UK Government G-Cloud.
Interstellar cloud
The Local Interstellar Cloud and neighboring G-cloud complex.gif
The G-Cloud complex and neighboring Local Interstellar Cloud
Observation data
Designations G Cloud[1]
See also: Lists of nebulae

The G-Cloud (or G-Cloud complex) is an interstellar cloud located next to the Local Interstellar Cloud. The Solar System is currently moving towards it. It is currently unknown whether the Solar System is embedded in the Local Interstellar Cloud or in the region where the two clouds are interacting. The G-Cloud contains the stars Alpha Centauri (a triple star system that includes Proxima Centauri) and Altair (and possibly others).[2][3][4][5][6][7]


  1. ^ "NAME G CLOUD -- Cloud". SIMBAD. Retrieved 15 March 2014. 
  2. ^ http://interstellar.jpl.nasa.gov/interstellar/probe/introduction/neighborhood.html, Our Local Galactic Neighborhood, NASA
  3. ^ http://www.centauri-dreams.org/?p=14203, Into the Interstellar Void, Centauri Dreams
  4. ^ http://jila.colorado.edu/research/astrophysics/interstellar-medium, The Interstellar Medium, 22 October 2012
  5. ^ http://www.igpp.ucla.edu/public/mkivelso/refs/PUBLICATIONS/Redfield%20LISM.pdf, Physical Properties of the Local Interstellar Medium, 22 October 2012
  6. ^ http://iopscience.iop.org/0004-637X/593/2/868/pdf/17092.web.pdf, LOCAL INTERSTELLAR MATTER: THE APEX CLOUD, 22 October 2012
  7. ^ http://www.newscientist.com/blogs/shortsharpscience/2012/02/spacecraft-probes-gas-cloud-sw.html, Spacecraft probes gas cloud swaddling the solar system, New Scientist, 22 October 2012