HistoryMole.com HistoryMole.com
Login:
 Home  Search  Browse  Schools  Help  Feedback 
 
 
TimeScape Biographies Themes Subjects  |
 
Related Topics
Exploration of Space
Exploration of Space
Pluto
Pluto
Mercury
Mercury
Venus
Venus
Mars
Mars
Jupiter
Jupiter
Saturn
Saturn
Uranus
Uranus
The Moon
The Moon
Neptune

Neptune

View or Print as PDF View or print as a PDF
The 8th Planet from the Sun
Timeline
    1613  CEGalileo may have unknowingly viewed undiscovered planet Neptune.
    1843  CEJohn Adams predicts the existence and location of Neptune from irregularities in the orbit of Uranus.
    1846  CEUrbain Leverrier predicts the existence and location of Neptune from irregularities in the orbit of Uranus.
    1846  CEJohn Adams and Urbain le Verrier predict the position of Neptune.
    1846  CEJohann Galle located the planet Neptune by following predictions by John Adams and Urbain le Verrier.
    1846  CEJohann Gottfried Galle and Heinrich d'Arrest discover Neptune.
    1905  CEPercival Lowell postulates a ninth planet beyond the orbit of Neptune, later discovered to be Pluto.
    1949  CEGerard Kuiper discovers Nereid, (2nd satellite of Neptune)
    1977  CEVoyager 2 launched for fly-by of Jupiter, Saturn, Uranus, Neptune
    1977  CENASA launches Voyager 2 towards Jupiter, Saturn, Uranus & Neptune
    1979  CENeptune becomes farthest planet from the sun in our solar system and remains that way for 20 years.
    1989  CEVoyager 2 flies past Neptune
    1989  CEVoyager 2 begins a flyby of the planet Neptune
    1989  CEThe first complete ring around Neptune discovered
    1989  CENASA confirmed Voyager 2's discovery of 3 more moons of Neptune designated temporarily 1989 N2, 1989 N3 & 1989 N24
    1989  CEConjunction of Venus, Mars, Uranus, Neptune, Saturn and the Moon.
    1989  CEVoyager 2 discovers 2 partial rings of Neptune
    1989  CEVoyager 2 sends back images of Neptune and its system
    1989  CEVoyager 2 makes its closest approach to Neptune (0400 GMT)
 24 Aug 2006  CEThe "Planet Definition" Resolution was put to the 2006 General Assembly of the International Astronomical Union. the outcome decided the defintiion of what objects in the Solar System should be classified as "Planets". Pluto looses its status as a Planet retuning the total number of "Planets" in our solar system to eight.
 
Note 1: Events described with text like this have been entered from one source but have not yet been verified against a subsequent source ( Explain ).
Note 2: The events are sorted in semi-chronological order according to what is factually known about the date of the event ( Explain ).
Note 3: Events with more information are marked as follows:
Has other topics associated with this event Has other topics associated with this event,
Has geographic locations associated with this event Has geographic locations associated with this event,
Has external links assocated with this event's topics Has external links assocated with this event's topics,
Has external links associated with the geographic location Has external links associated with the geographic location of this event,
Has external links specifically assocated with this event Has external links specifically assocated with this event.
 
     
 
 
Internet Content Rating Association Rated with SafeSurf Valid HTML 4.01 Valid CSS! Support EuroCAUCE Level A conformance icon, W3C-WAI Web Content Accessibility Guidelines 1.0