Indian Calendar Astronomical Data
rlass at SLIP.NET
Sun Aug 1 17:37:19 UTC 1999
Following are several sources that may be of interest to you.
</bold>Presents in a completely algorithmic form, a description of
fourteen calendars including the Hindu lunar. This is a very good
resource for programmers and includes B Lisp source code.
Dershowitz and Reingold
Cambridge University Press
</bold>A shareware application (license may be purchased for $10) based
on the algorithems contained in Calendrical Calculations. It is
available for both Macintosh and Windows from
</bold>A commercial DOS application (license may be purchased for $100)
that can be run under Windows95/98. Contains a daily and monthly
almanic calendar (tithis, nakshatra, etc.) adjusted to the user's
location for any date from 470BC to 9999. Avaliable from
> I had to make a list of the dates of the Indian Lunar holidays
>year 2000. Because I was unable to find either a panchanga or lunar
>calendar for year 2000 I had to derive the start and end dates of the
>from astronomical data. This I did from the Nasa JPL web site at
>http://ssd.jpl.nasa.gov/horizons.html . It was quite easy but
>I.e. extracting the longtitudes of the sun and moon wrt the ecliptic
>each hour of year 2000, and pasting the data into an excel spreadsheet
>deriving the phase angle and tithi from this. But after doing this
>occured to me that a much easier way of doing this would be to work
>with the formulas for deriving the longtitudes of the sun and the moon
>that this is probably available in an Indian source somewhere with all
>constants necessary for Indian calendar calculations.
> Do any of the list members know either these formulas (preferably
>the constants and degree of accuracy appropriate for the tithi
>or a source where I can get them either in the USA or in India? Also
>understand there is an "Indian Astronomical Ephemeris" and a Report
>Committee for Calendar Reform (1957). Does anyone know where I can
>copies of these?
>Thanks in advance,
>Get Free Email and Do More On The Web. Visit http://www.msn.com
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