During the 6,000-year period from -1999 to +4000 (2000 BCE to 4000 CE), Earth will experience 81 transits of Venus that can be organized into two groups, the first one in June and the second in December. All the data accessed through this interface is provided by Fred Espenak and Jean Meeus (NASA Technical Publication). During the 700-year period from +1601 to +2300 (1601 BCE to 2300 CE), Earth will experience 94 transits of Mercury that can be organized into two groups, the first one in May and the second in November. All the data accessed through this interface is provided by Fred Espenak et Jean Meeus (NASA Technical Publication). The data available is described in greater detail in the Key to Solar Transit Catalogs. Years in this catalog are numbered astronomically and include the year 0. Historians should note there is a difference of one year between astronomical dates and BCE dates. Thus, the astronomical year 0 corresponds to 1 BCE, and astronomical year -1 corresponds to 2 BCE, etc.
Detailed information, Google Maps and Google Earth kmz files for each of the 175 solar transits (Mercury and Venus) can be generated on-the-fly. Be aware that the uncertainty in Earth’s rotational period expressed in the parameter ΔT has an impact on the geographic visibility of eclipses in the past and future. Know more about ΔT retrodiction or 5MCSE’s ΔT model.
Last page update on March 8, 2012.
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