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How About Some New Constellation Boundaries?



 
 
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  #1  
Old December 1st 04, 05:40 AM
Sam Wormley
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Mark Lepkowski wrote:
Constellations convenient for sectioning the grand celestial sphere into
manageable, recognizable pieces. Back in 1930 astronomers snapped some
chalk lines on the sky, got out their jigsaws and cut out some formal
constellation boundaries. They were pretty smart about it -- "they lie
along the meridians of right ascension and parallels of declination for the
mean equator and equinox of 1875.0" according to:

http://www.iau.org/IAU/Activities/no...ure/const.html

Looking at The Cambridge Star Atlas 3rd Edition which is based on the 2000.0
catalogues it's pretty obvious that the old border boundaries are no longer
convenient. Just look at the UMi boundary closest to the pole! It seems to
be a circular arc centered on absolutely nothing pertinent today. To
accurately determine which constellation an object is located in today one
must translate back to the 1875 frame. How about some new formal boundaries
along the meridians of right ascension and parallels of declination for the
mean equator and equinox of 2000.0? Surely there's gotta be some good grant
money available for that kind of thing.

Regards,
-- Mark

Mark Lepkowski
Email: webmaster at mclTunes dot-com
http://www.mcltunes.com



We like the boundaries to stay with the stars that inspired them in the first
place.

  #2  
Old December 1st 04, 05:57 AM
Uncle Bob
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Sam Wormley wrote:
Mark Lepkowski wrote:



Looking at The Cambridge Star Atlas 3rd Edition which is based on the
2000.0 catalogues it's pretty obvious that the old border boundaries
are no longer convenient. Just look at the UMi boundary closest to
the pole! It seems to be a circular arc centered on absolutely
nothing pertinent today. To accurately determine which constellation
an object is located in today one must translate back to the 1875
frame. How about some new formal boundaries along the meridians of
right ascension and parallels of declination for the mean equator and
equinox of 2000.0? Surely there's gotta be some good grant money
available for that kind of thing.

Regards,
-- Mark

Mark Lepkowski
Email: webmaster at mclTunes dot-com
http://www.mcltunes.com



We like the boundaries to stay with the stars that inspired them in the
first
place.


I say move Alpharetz back into Pegasus. I'm getting tired of "The Great
Triangle of Pegasus".

Uncle Bob

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  #3  
Old December 2nd 04, 03:54 AM
starman
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Uncle Bob wrote:

I say move Alpharetz back into Pegasus. I'm getting tired of "The Great
Triangle of Pegasus".


....and Scorpius wants his claws back.


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