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gptkbp:instanceOf
|
astronomer
|
|
gptkbp:can_be_observed_with
|
astronomer
solar filter
pinhole projector
|
|
gptkbp:cause
|
orbital alignment of Venus, Earth, and Sun
|
|
gptkbp:duration
|
typically several hours
|
|
gptkbp:first_observed_in
|
1639
|
|
gptkbp:first_predicted_by
|
gptkb:Johannes_Kepler
|
|
gptkbp:first_predicted_in
|
1627
|
|
gptkbp:firstObserved
|
Jeremiah Horrocks in 1639
|
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gptkbp:frequency
|
occurs in pairs 8 years apart, separated by over a century
|
|
gptkbp:hasViewOf
|
gptkb:Earth
|
|
gptkbp:historically_important_for
|
measuring the astronomical unit
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
transit of Venus
|
|
gptkbp:last_occurred
|
5–6 June 2012
|
|
gptkbp:next_occurrence
|
10–11 December 2117
|
|
gptkbp:notable_for
|
black drop effect
|
|
gptkbp:observedBy
|
gptkb:Mikhail_Lomonosov
gptkb:Guillaume_Le_Gentil
James Cook
|
|
gptkbp:occurredIn
|
Venus passes directly between the Sun and Earth
|
|
gptkbp:previous_occurrence
|
8 June 2004
|
|
gptkbp:relatedTo
|
transit of Mercury
|
|
gptkbp:studiedBy
|
gptkb:Charles_Green
gptkb:David_Rittenhouse
gptkb:Edmond_Halley
gptkb:Maximilian_Hell
gptkb:Pierre_Charles_Le_Monnier
gptkb:John_Winthrop
gptkb:Anders_Celsius
gptkb:Simon_Newcomb
gptkb:Joseph-Nicolas_Delisle
gptkb:William_Dawes
gptkb:William_Wales
gptkb:Jean-Baptiste_Chappe_d’Auteroche
gptkb:James_Short
William Bayly
|
|
gptkbp:used_in
|
determine the scale of the solar system
|
|
gptkbp:visible_as
|
small black disk moving across the Sun
|
|
gptkbp:bfsParent
|
gptkb:transit_of_Venus_(1631)
|
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gptkbp:bfsLayer
|
7
|