Comets

 

 

 

 

1577

 

Earth based

Tycho Brahe

Determine that comets are celestial not atmospheric

1862

 

Earth based

Giovarnni Virginio Schlaperelli

Deduced that comets and meteor showers follow the same orbits

1949

 

Earth based

Fred Whipple

Determines that comet nuclei are dirty snowballs.

1977

 

Earth based

Charles Kowal

Chiron first described as, asteroid 2060, later a coma is found suggesting it is a comet.

1996

 

Earth based

Mauna Kea Telescope

Examined Hyatutake and determined the tail's acetylene to water ratio was that of interstellar unprocessed ice.

1999

Postponed

Sample return

Comet Wild 2

Scoop dust December 2003 from coma and return it in 2006

1984

August 16

Miscellaneous

AMPTE

artificial comet tail produced to measure the effects of the solar winds.

 

 

 

 

 

Planet X

 

 

 

 

1995

April

Earthbased

 

Time residuals in PSR 1937 + 21 a Pulsar in Vulpecula has a one millisecond time anomaly probably due to some large mass beyond Pluto.

 

return to homepage