Re: Question about caldate_mjd()

John Peacock <[email protected]> Mon, 15 Sep 2003 09:41:53 -0400
Newsgroups gmane.comp.lib.libtai
Organization Rowman & Littlefield Publishing Group
Message-ID <[email protected]>
Bart Grantham wrote:
> Ooops .. let me restate that... Something, 111AD? (1859 years before 
> 1970 if I calculate right)  My confustion stems from this line:
> 
>  d = cd->day - 678882L;
> 

mjd = Modified Julian Date

	http://www.faqs.org/faqs/astronomy/faq/part3/section-6.html

I cannot locate anything to explain where that constant comes from, though...

HTH

John

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John Peacock
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