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Parhelic circle
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<h2 id="see-also">See also</h2> <ul><li><a href="/facts/Upper_and_lower_tangent_arcs/chwUqz8M">Upper and lower tangent arcs</a></li> <li><a href="/facts/Circumzenithal_arc/gLlHlp0K">Circumzenithal arc</a></li> <li><a href="/facts/Liljequist_parhelion/ocAbyct2">Liljequist parhelion</a></li></ul> <h2 id="external-links">External links</h2> <ul><li><a href="http://www.atoptics.co.uk/halosim.htm">Atmospheric Optics – Ice Halos</a></li></ul> <h2 id="references">References</h2> <ol> <li id="fn:1"><p>Koby Harati. "Parhelic Circle". Atmospheric Optics. Retrieved 2007-04-15. <a href="http://www.atoptics.co.uk/halo/parcirc.htm" target="_blank">http://www.atoptics.co.uk/halo/parcirc.htm</a> <a href="#fnref:1" class="footnote-back-ref">↩</a></p></li> <li id="fn:2"><p>Les Cowley. "Paraselenae & Paraselenic circle". Atmospheric Optics. Retrieved 2021-10-07. <a href="https://www.atoptics.co.uk/fza40.htm" target="_blank">https://www.atoptics.co.uk/fza40.htm</a> <a href="#fnref:2" class="footnote-back-ref">↩</a></p></li> <li id="fn:3"><p>"Parhelic Circle". www.paraselene.de. Retrieved 2009-02-01. (including an excellent HaloSim simulation of a parhelic circle.) <a href="http://www.paraselene.de?uk:113554" target="_blank">http://www.paraselene.de?uk:113554</a> <a href="#fnref:3" class="footnote-back-ref">↩</a></p></li> <li id="fn:4"><p>Les Cowley. "Parhelic Circle Formation". Atmospheric Optics. Retrieved 2007-04-15. <a href="http://www.atoptics.co.uk/halo/pcpaths.htm" target="_blank">http://www.atoptics.co.uk/halo/pcpaths.htm</a> <a href="#fnref:4" class="footnote-back-ref">↩</a></p></li> <li id="fn:5"><p>Sillanpää, M.; Moilanen, J.; Riikonen, M.; Pekkola, M. (2001). "Blue spot on the parhelic circle". Applied Optics. 40 (30): 5275–5279. Bibcode:2001ApOpt..40.5275S. doi:10.1364/ao.40.005275. PMID 18364808. <a href="/wiki/Bibcode_(identifier)" target="_blank">/wiki/Bibcode_(identifier)</a> <a href="#fnref:5" class="footnote-back-ref">↩</a></p></li> <li id="fn:6"><p>Selmke, M. (2015). "Artificial Halos". American Journal of Physics. 83 (9): 751–760. Bibcode:2015AmJPh..83..751S. doi:10.1119/1.4923458. <a href="http://scitation.aip.org/content/aapt/journal/ajp/83/9/10.1119/1.4923458" target="_blank">http://scitation.aip.org/content/aapt/journal/ajp/83/9/10.1119/1.4923458</a> <a href="#fnref:6" class="footnote-back-ref">↩</a></p></li> <li id="fn:7"><p>Borchardt, S.; Selmke, M. (2015). "Intensity distribution of the parhelic circle and embedded parhelia at zero solar elevation: theory and experiments". Applied Optics. 54 (22): 6608–6615. Bibcode:2015ApOpt..54.6608B. doi:10.1364/AO.54.006608. PMID 26368071. S2CID 39382489. <a href="https://www.osapublishing.org/ao/abstract.cfm?uri=ao-54-22-6608" target="_blank">https://www.osapublishing.org/ao/abstract.cfm?uri=ao-54-22-6608</a> <a href="#fnref:7" class="footnote-back-ref">↩</a></p></li> </ol>