cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A210493 Transits of Venus since the invention of the telescope by Julian Date (rounded).

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%I A210493 #23 Sep 10 2022 16:44:37
%S A210493 2317111,2320030,2364409,2367328,2405867,2408786,2453165,2456085,
%T A210493 2458099,2497542,2541921,2544841,2583379,2586298
%N A210493 Transits of Venus since the invention of the telescope by Julian Date (rounded).
%C A210493 "Transits of Venus are among the rarest of predictable astronomical phenomena. They occur in a pattern that generally repeats every 243 years, with pairs of transits eight years apart separated by long gaps of 121.5 years and 105.5 years. The periodicity is a reflection of the fact that the orbital periods of Earth and Venus are close to 8:13 and 243:395 commensurabilities." - Wikipedia
%C A210493 a(n) is approximately 365.25 * A171467(n+46). - _Charles R Greathouse IV_, Jan 24 2013
%D A210493 Jean Meeus, Transits, Willmann-Bell, 1989.
%D A210493 Jean Meeus, Astronomical Algorithms, Second Ed., 1999.
%H A210493 Fred Espenak, <a href="http://mreclipse.com/MrEclipse.html">The Ultimate Resource for Eclipse Photography</a>, 2001.
%H A210493 NASA Science, <a href="http://science.nasa.gov/science-news/science-at-nasa/2012/20dec_transitofvenus/">Saturn's Transit of Venus on Dec. 21, 2012</a>
%H A210493 NASA Eclipse Web Site, <a href="http://eclipse.gsfc.nasa.gov/transit/transit.html">Planetary Transits Across the Sun</a>
%H A210493 NASA Eclipse Web Site, <a href="http://eclipse.gsfc.nasa.gov/eclipse.html">Eclipses and Transits of 2012</a>
%H A210493 NASA Eclipse Web Site, <a href="http://eclipse.gsfc.nasa.gov/transit/venus0412.html">2004 and 2012 Transits of Venus</a>
%H A210493 NASA Eclipse Web Site, <a href="http://eclipse.gsfc.nasa.gov/transit/catalog/VenusCatalog.html">Six Millennium Catalog of Venus Transits: 2000 BCE to 4000 CE</a>
%H A210493 NASA / Goddard Space Flight Center, <a href="http://eclipse.gsfc.nasa.gov/SEhelp/calendars.html">Calendars, by L. E. Doggett</a>
%H A210493 The United States Naval Observatory (USNO), Astronomical Applications Department, <a href="http://aa.usno.navy.mil/data/docs/JulianDate.php">Julian Date Converter</a>
%H A210493 Wikipedia, <a href="http://en.wikipedia.org/wiki/Transit_of_Venus,_2012">2012 transit of Venus</a>
%e A210493 05:19 07 Dec 1631 = 2317110.721528
%e A210493 18:25 04 Dec 1639 = 2320030.267361
%e A210493 05:19 06 Jun 1761 = 2364408.721528
%e A210493 22:25 03 Jun 1769 = 2367328.434028
%e A210493 04:05 09 Dec 1874 = 2405866.670139
%e A210493 17:06 06 Dec 1882 = 2408786.212500
%e A210493 08:19 08 Jun 2004 = 2453164.846528
%e A210493 01:28 06 Jun 2012 = 2456084.561111
%e A210493 02:48 11 Dec 2117 = 2458098.616667
%e A210493 16:01 08 Dec 2125 = 2497542.167361
%e A210493 11:30 11 Jun 2247 = 2541920.979167
%e A210493 04:36 09 Jun 2255 = 2544840.691667
%e A210493 01:40 13 Dec 2360 = 2583378.569444
%e A210493 14:43 10 Dec 2368 = 2586298.113194
%Y A210493 Cf. A171467.
%K A210493 nonn
%O A210493 1,1
%A A210493 Fred Espenak (fred.espenak-1(AT)nasa.gov) or (info01(AT)MrEclipse.com) and _Robert G. Wilson v_, Jan 23 2013