View source for SEVENDIP

'''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 [[Optical spectrum|visible wavelengths]] to search for [[extraterrestrial life]]'s intelligent signals from outer space.<ref name=seti-berkeley>{{cite web|url=http://seti.berkeley.edu/|title=The Search for Extra Terrestrial Intelligence at Berkeley|publisher=University of California at Berkeley|accessdate=5 April 2012|archivedate=12 February 2013|archiveurl=https://web.archive.org/web/20130212103458/http://seti.berkeley.edu/|url-status=dead}}</ref>
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.<ref name='Korpela 2011'>[https://arxiv.org/abs/1108.3134 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.</ref> Another instrument was mounted on Berkeley's 0.8-meter automated telescope at [[Leuschner Observatory]].<ref name='Korpela 2011'/> Their sensors have a rise time of 0.7 [[Nanosecond|ns]] and are sensitive to 300 - 700 [[Nanometer|nm]] wavelengths.
The target list included mostly nearby [[F-type main-sequence star|F]], [[G-type main-sequence star|G]], [[K-type main-sequence star|K]] and [[Red dwarf|M]] stars, plus a few [[globular cluster]]s and galaxies.<ref name='Korpela 2011'/><ref>[http://www.coseti.org/4273-07.htm 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. ''Coseti.org'', 2006.</ref>  The Leuschner pulse search examined several thousand stars, each for approximately one minute or more.<ref name='Korpela 2011'/>
==References==
{{Reflist}}
[[Category:Search for extraterrestrial intelligence]]
[[Category:Interstellar messages]]
[[Category:University of California, Berkeley]]
[[Category:Science and technology in the San Francisco Bay Area]]
{{astrobiology-stub}}