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SEVENDIP, which stands for Search for Extraterrestrial Visible Emissions from Nearby Developed Intelligent Populations, was a project developed by the Berkeley SETI Research Center at the University of California, Berkeley that used visible wavelengths to search for extraterrestrial life's intelligent signals from outer space.[1]

Between 1997 and 2007, SEVENDIP employed a 30-inch automated telescope located in Lafayette, California, to scan the sky for potential optical interstellar communications in the nanosecond time-scale laser pulses.[2] Another instrument was mounted on Berkeley's 0.8-meter automated telescope at Leuschner Observatory.[2] Their sensors have a rise time of 0.7 ns and are sensitive to 300 - 700 nm wavelengths.

The target list included mostly nearby F, G, K and M stars, plus a few globular clusters and galaxies.[2][3] The Leuschner pulse search examined several thousand stars, each for approximately one minute or more.[2]


  1. "The Search for Extra Terrestrial Intelligence at Berkeley". University of California at Berkeley. Archived from the original on 25 December 2012. Retrieved 5 April 2012. 
  2. 2.0 2.1 2.2 2.3 Status of the UC-Berkeley SETI Efforts. Eric J. Korpela, David P. Anderson , Robert Bankay, Jeff Cobb, Andrew Howard, Matt Lebofsky, Andrew P.V. Siemion, Joshua von Korff, Dan Werthimer. arXiv. 16 Aug 2011.
  3. Berkeley Radio and Optical SETI Programs: SETI@Home, SERENDIP, and SEVENDIP. Dan Werthimer, David Anderson, Stuart Bowyer, Jeff Cobb, Eric Korpela, Michael Lampton, Matt Lebofsky, Geoff Marcy, and Dick Treffers., 2006. was the original source. Read more.