AdvertisementWindows Live® Search Results- Parsec - Wikipedia, the free encyclopedia
The parsec (" par allax of one arc sec ond", symbol pc) is a unit of length, equal to just over 30 trillion kilometres, or about 3.3 light years. The parsec is used in astronomy. - Parsec Homepage
November 2001: Parsec LAN-Test bug-fix update for Win32, MacOS, MacOS X, and Linux! September 2001: New Parsec LAN-Test released for Win32, MacOS, MacOS X, and Linux! - Parsec Group
Full-service consulting, supporting and training for OpenVMS, Tru64 UNIX and Microsoft. HP Authorized Partner. Providing world-class services to hundreds of consulting clients ...
See all search results in
Windows Live® Search Results
| Also on Encarta |
|
|
 |
Parsec
Encyclopedia Article
Parsec, in astronomy, unit of measurement used, along with the light-year, for stellar distances. One parsec is the distance to a star that shows a parallax, or apparent shift in position when viewed from opposite sides of the earth's orbit, of one second of arc. (The word parsec is an abridgment of the words parallax and second.) This distance is 30.86 trillion km (19 trillion mi). One parsec is equal to 3.26 light-years and to 206,265 astronomical units (see Astronomical Unit).
© 1993-2008 Microsoft Corporation. All Rights Reserved.
 |
|
More from Encarta |
|
 |
|
|
|
|
Hotmail
Messenger
My MSN
MSN Directory
