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

2317111, 2320030, 2364409, 2367328, 2405867, 2408786, 2453165, 2456085, 2458099, 2497542, 2541921, 2544841, 2583379, 2586298

Offset: 1

Author

Fred Espenak (fred.espenak-1(AT)nasa.gov) or (info01(AT)MrEclipse.com) and Robert G. Wilson v, Jan 23 2013

Keywords

• nonn

Comments

"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

a(n) is approximately 365.25 * A171467(n+46). - Charles R Greathouse IV, Jan 24 2013

Examples

			05:19 07 Dec 1631 = 2317110.721528
18:25 04 Dec 1639 = 2320030.267361
05:19 06 Jun 1761 = 2364408.721528
22:25 03 Jun 1769 = 2367328.434028
04:05 09 Dec 1874 = 2405866.670139
17:06 06 Dec 1882 = 2408786.212500
08:19 08 Jun 2004 = 2453164.846528
01:28 06 Jun 2012 = 2456084.561111
02:48 11 Dec 2117 = 2458098.616667
16:01 08 Dec 2125 = 2497542.167361
11:30 11 Jun 2247 = 2541920.979167
04:36 09 Jun 2255 = 2544840.691667
01:40 13 Dec 2360 = 2583378.569444
14:43 10 Dec 2368 = 2586298.113194
		

References

• Jean Meeus, Transits, Willmann-Bell, 1989.
• Jean Meeus, Astronomical Algorithms, Second Ed., 1999.

Links

• Fred Espenak, The Ultimate Resource for Eclipse Photography, 2001.
• NASA Science, Saturn's Transit of Venus on Dec. 21, 2012
• NASA Eclipse Web Site, Planetary Transits Across the Sun
• NASA Eclipse Web Site, Eclipses and Transits of 2012
• NASA Eclipse Web Site, 2004 and 2012 Transits of Venus
• NASA Eclipse Web Site, Six Millennium Catalog of Venus Transits: 2000 BCE to 4000 CE
• NASA / Goddard Space Flight Center, Calendars, by L. E. Doggett
• The United States Naval Observatory (USNO), Astronomical Applications Department, Julian Date Converter
• Wikipedia, 2012 transit of Venus

Crossrefs

Cf. A171467.