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MathGroup Archive 1996

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Re: Julian Day Calculation - Plea for Help

  • To: mathgroup at smc.vnet.net
  • Subject: [mg3938] Re: Julian Day Calculation - Plea for Help
  • From: bw946 at freenet.uchsc.edu (Raymond K. Petry)
  • Date: Fri, 10 May 1996 03:31:09 -0400
  • Sender: owner-wri-mathgroup at wolfram.com

[How about a Mathematica solution to this. - moderator]

Some of the hp calculators have this date function ... basically AFAIK julian
 date has 36525 days per century ... it starts somewhere ca 4713 BC [?] and
 is off by about a day in 128.2 years or a moon in 3786.0 years or a month in
 3902.6 years ... something like that, because our tropical calendar has
 365.2422 days in a year ... though then again, the Gregorian calendar has
 365.2425 days in a year, reducing the discrepancy by 4% ....
(The collegiate dictionary didn't help here) -Ray

Earl Knick (eknick at iu.net) wrote:
: In article <searchme-2904961319480001 at 204.250.36.184>,
: searchme at earthlink.net (Matthew K.) wrote:

: > I need , if possible, to get the equation for calculating the Julian Day
: > well into the future (we're talking 1000 years here).

: Take a look at the book "Numerical Recipes in C", page 10.

: -- 
: Earl Knick
: Melbourne, Florida, USA
: eknick at iu.net

--
Cordially and sincerely, your Mr. Raymond Kenneth Petry, CS,  The Follower and
Principal Successor to Rev. Mary Baker Eddy     mailto:lambhorn at mail.serve.com
The Son Dey School of Christ Science             http://www.serve.com/lambhorn 
55...5^KEY mod @20-11=4475961518,7357040702   P*Q= at 40-11,3077950491,7493976207

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