The G-Cloud (or G-Cloud complex) is an interstellar cloud located next to the Local Interstellar Cloud. The Sun is currently moving towards it. It is currently unknown whether the Sun 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, Proxima Centauri and Altair (and possibly others).
- http://interstellar.jpl.nasa.gov/interstellar/probe/introduction/neighborhood.html, Our Local Galactic Neighborhood, NASA
- http://www.centauri-dreams.org/?p=14203, Into the Interstellar Void, Centauri Dreams
- http://jila.colorado.edu/research/astrophysics/interstellar-medium, The Interstellar Medium, 22nd October 2012
- http://www.igpp.ucla.edu/public/mkivelso/refs/PUBLICATIONS/Redfield%20LISM.pdf, Physical Properties of the Local Interstellar Medium, 22nd October 2012
- http://iopscience.iop.org/0004-637X/593/2/868/pdf/17092.web.pdf, LOCAL INTERSTELLAR MATTER: THE APEX CLOUD, 22nd October 2012
- http://www.newscientist.com/blogs/shortsharpscience/2012/02/spacecraft-probes-gas-cloud-sw.html, Spacecraft probes gas cloud swaddling the solar system, New Scientist, 22nd October 2012
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