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  2. Transit of Venus - Wikipedia

    en.wikipedia.org/wiki/Transit_of_Venus

    A transit of Venus takes place when Venus passes directly between the Sun and the Earth (or any other superior planet), becoming visible against (and hence obscuring a small portion of) the solar disk. During a transit, Venus is visible as a small black circle moving across the face of the Sun. Transits of Venus reoccur periodically.

  3. 1769 transit of Venus observed from Tahiti - Wikipedia

    en.wikipedia.org/wiki/1769_transit_of_Venus...

    Point Venus Lighthouse, Tahiti (LMS, 1869, p.) [4]. In 1663, Scottish mathematician James Gregory came up with the idea of using Venus or Mercury transits to determine the astronomical unit by measuring the apparent solar parallax between different points on the surface of the Earth. [5]

  4. 1639 transit of Venus - Wikipedia

    en.wikipedia.org/wiki/1639_transit_of_Venus

    Kepler's De raris mirisque Anni 1631 Phaenomenis notice to astronomers of the impending transits of Mercury and Venus, 1631. By the 17th century, two developments allowed for the transits of planets across the face of the Sun to be predicted and observed: the telescope and the new astronomy of Johannes Kepler, which assumed elliptical, rather than circular, planetary orbits.

  5. Observations and explorations of Venus - Wikipedia

    en.wikipedia.org/wiki/Observations_and...

    Transits of Venus directly between the Earth and the Sun's visible disc are rare astronomical events. The first such transit to be predicted and observed was the 1639 transit of Venus, seen and recorded by English astronomers Jeremiah Horrocks and William Crabtree. [18]

  6. 1874 transit of Venus - Wikipedia

    en.wikipedia.org/wiki/1874_transit_of_Venus

    The transit as seen from Japan by Pierre Janssen Map showing the visibility of the 1874 transit of Venus. The 1874 transit of Venus, which took place on 9 December 1874 (01:49 to 06:26 UTC), [1] [n 1] was the first of the pair of transits of Venus that took place in the 19th century, with the second transit occurring eight years later in 1882.

  7. Astronomical transit - Wikipedia

    en.wikipedia.org/wiki/Astronomical_transit

    In astronomy, a transit (or astronomical transit) is the passage of a celestial body directly between a larger body and the observer. As viewed from a particular vantage point, the transiting body appears to move across the face of the larger body, covering a small portion of it.

  8. Venus Conjunct Saturn in Pisces Will Keep These 3 Zodiac ...

    www.aol.com/venus-conjunct-saturn-pisces-keep...

    The influence of Venus conjunct Saturn in your sign is especially significant for you, Pisces. In addition to influencing your personal identity and self-expression, this is the perfect time to ...

  9. Black drop effect - Wikipedia

    en.wikipedia.org/wiki/Black_drop_effect

    Venus transits the face of the Sun on 8 June 2004. Here, the black drop effect is visible. Here, the black drop effect is visible. The black drop effect is an optical phenomenon visible during a transit of Venus and, to a lesser extent, a transit of Mercury .