Distant Worlds pp 237-256 | Cite as

Neptune: The last giant

  • Peter Bond


With the discovery of Uranus, the Solar System once again seemed complete. A search through old records going back to the seventeenth century revealed that the first Astronomer Royal, John Flamsteed, had observed Uranus on no fewer than six occasions from 1690 onwards, without realizing that it was a planet rather than a star. Armed with this invaluable positional information that extended over more than one Uranian year, it seemed to be relatively straightforward to determine the planet’s orbit.


Giant Planet Hubble Space Telescope Solar Nebula Royal Greenwich Observatory Infrared Space Observatory 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Praxis Publishing, Ltd. 2007

Authors and Affiliations

  • Peter Bond

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