Editing Triskaidekaphobia (section)

===Effect on US Shuttle program mission naming===
[[File:STS-41-c Alt Patch.jpg|right|thumb|Alternate mission patch of STS-41C, with a 13 and a black cat, as it landed on April&nbsp;13th, which was a Friday the 13th and this was the mission originally scheduled as STS-13<ref>{{cite book |first=Ben |last=Evans |year=2007 |url=https://books.google.com/books?id=MQjCF8Cc7HoC&q=sts-41-c+friday+13th+cat&pg=PA114 |title=Space Shuttle Challenger: Ten Journeys into the Unknown |publisher=Springer |via=[[Google Books]] |access-date=May 30, 2012 |df=dmy-all|isbn=978-0387496795 }}</ref>]]

The disaster that occurred on [[Apollo 13]] may have been a factor that led to a renaming that prevented a mission called STS-13.<ref name="nasa.gov">{{cite web |url=https://www.nasa.gov/feature/behind-the-space-shuttle-mission-numbering-system |title=Behind the Space Shuttle mission numbering system |first=Andres |last=Almeida |date=5 December 2016 |website=nasa.gov |access-date=5 November 2017}}</ref><ref name="Evans">{{cite book |url=https://books.google.com/books?id=k_uZiCp5icUC&q=Triskaidekaphobia+STS&pg=PA211 |title=Tragedy and Triumph in Orbit: The Eighties and Early Nineties |last=Evans |first=Ben |date=2012|publisher=Springer Science & Business Media |isbn=978-1461434306 |language=en |page=211}}</ref> [[STS-41-G]] was the name of the thirteenth Space Shuttle flight.<ref>{{cite news |url=http://www.orlandosentinel.com/news/orl-shuttlemission-13pic-41g-photo.html |id=41-G |title=Challenger mission No.&nbsp;6 (13th shuttle program mission overall) |newspaper=[[Orlando Sentinel]] |access-date=5 November 2017}}</ref> However, originally [[STS-41-C]] was the mission originally numbered STS-13<ref name="vanhoftenoh">{{cite web |url=http://www.jsc.nasa.gov/history/oral_histories/vanHoftenJD/vanHoftenJDA_12-5-07.pdf |archive-url=https://ghostarchive.org/archive/20221009/http://www.jsc.nasa.gov/history/oral_histories/vanHoftenJD/vanHoftenJDA_12-5-07.pdf |archive-date=2022-10-09 |url-status=live |title=James D. A. van Hoften |publisher=NASA Johnson Space Center |series=Oral History Project |date=December 5, 2007 |access-date=July 20, 2013 |df=dmy-all}}</ref><ref name="hartoh">{{cite web |url=http://www.jsc.nasa.gov/history/oral_histories/HartTJ/HartTJ_4-10-03.pdf |archive-url=https://ghostarchive.org/archive/20221009/http://www.jsc.nasa.gov/history/oral_histories/HartTJ/HartTJ_4-10-03.pdf |archive-date=2022-10-09 |url-status=live |title=Terry J. Hart |publisher=NASA Johnson Space Center |series=Oral History Project |date=April 10, 2003 |access-date=July 20, 2013 |df=dmy-all}}</ref> STS-41-C was the eleventh orbital flight of the space shuttle program.<ref name="jsc.nasa.gov">{{cite web |url=http://www.astronautix.com/s/sts-41-c.html |archive-url=https://web.archive.org/web/20161227195702/http://astronautix.com/s/sts-41-c.html |url-status=dead |archive-date=December 27, 2016 |title=STS-41-C Information|work=Astonautix |access-date=28 December 2017}}</ref>

The numbering system of the [[Space Shuttle]] was changed to a new one after [[STS-9]].<ref name=almeida>{{cite news |url=https://www.nasa.gov/feature/behind-the-space-shuttle-mission-numbering-system |title=Behind the Space Shuttle Mission Numbering System |last=Almeida |first=Andres |date=2016-12-05 |publisher=NASA |access-date=2017-01-17 |df=dmy-all}}</ref> The new naming scheme started with STS-41B, the previous mission was STS-9, and the thirteenth mission (what would have been STS-13) would be STS-41C.<ref name=almeida/> The new scheme had first number stand for the U.S. fiscal year, the next number was a launch site (1 or 2), and the next was the number of the mission numbered with a letter for that period.<ref name=almeida/>

In the case of the actual 13th flight, the crew was apparently not superstitious and made a humorous mission patch that had a [[black cat]] on it.<ref name=almeida/> Also, that mission re-entered and landed on [[Friday the 13th]] which one crew described as being "pretty cool".<ref name=almeida/> Because of the way the designations and launch manifest work, the mission numbered STS-13 might not have actually been the 13th to launch as was common throughout the shuttle program; indeed it turned out to be the eleventh.<ref>{{cite book |url=https://books.google.com/books?id=k_uZiCp5icUC&q=Triskaidekaphobia+STS&pg=PA211 |title=Tragedy and Triumph in Orbit: The Eighties and Early Nineties |last=Evans |first=Ben |date=2012|df=dmy-all |publisher=Springer Science & Business Media |isbn=978-1461434306 |language=en}}</ref><ref name="jsc.nasa.gov"/> One of the reasons for this was when a launch had to be scrubbed, which delayed its mission.<ref name="Evans1">{{cite book |url=https://books.google.com/books?id=k_uZiCp5icUC&q=Triskaidekaphobia+STS&pg=PA211 |via=Google Books |title=Tragedy and Triumph in Orbit: The Eighties and Early Nineties |last=Evans |first=Ben |date=2012 |df=dmy-all |publisher=Springer Science & Business Media |isbn=978-1461434306 |language=en |page=211}}</ref>

NASA said in a 2016 news article it was due to a much higher frequency of planned launches (pre-Challenger disaster).<ref name=almeida/> As it was, the Shuttle program did have a disaster on its ''one-hundred'' and thirteenth mission going by date of launch, which was [[STS-107]].<ref>{{cite magazine |url=http://www.spacesafetymagazine.com/space-disasters/columbia-disaster/ |title=The Columbia Disaster |magazine=Space Safety Magazine |access-date=28 December 2017}}</ref> The actual mission [[STS-113]] was successful, and had actually launched earlier due to the nature of the launch manifest.<ref>{{cite web |url=https://www.nasa.gov/mission_pages/shuttle/shuttlemissions/archives/sts-113.html |title=NASA STS-113 |last=Warnock  |first=Lynda |department=KSC |website=nasa.gov |language=en |access-date=2017-01-17 |df=dmy-all}}</ref>