The Museum of HP Calculators

HP Forum Archive 13

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HP Calculator
Message #1 Posted by K. Ethiraj Reddy on 11 Nov 2003, 9:21 a.m.

Dear Sir, My brother is a Astrologer He wants a calculator with following functions, 1. Placidus House Calculation. 2. Plants Positions. 3. siderial time Calculators,

If the above product is avalable please send me the details immediatly


K.Ethiraj Reddy

ROTFLMAO! Excellent K. Ethiraj! (n/t)
Message #2 Posted by bond (uk) on 11 Nov 2003, 9:39 a.m.,
in response to message #1 by K. Ethiraj Reddy


Re: HP Calculator
Message #3 Posted by Valentin Albillo on 11 Nov 2003, 10:05 a.m.,
in response to message #1 by K. Ethiraj Reddy

Hi K.,

There are a number of astrological programs available in this very Museum of HP, namely:

HP-67 Astrology Solution Book (ported to HP-41C) 
          Astro 1 - Mean Obliquity of Ecliptic & GST 
          Astro 2 - Moon Asc Node, Nutation, Vernal Pt 
          Astro 3 - Local Siderial Time, Geocent Lat 
          Horoscope Construction 
          House Cusps - Campanus Methods 
          House Cusps - Koch Methods 
          House Cusps - Placidus Method 
          House Cusps - Regiomontanus Methods 
          House Cusps - Topocentric Methods 
          Mundoscope, Campanus 
          Mundoscope, Regiomontanus 

follow this link and scroll down till you find the individual links for each program.

They seem to be available in its original form for the HP-67, and here you'll find the 41C versions, translated automatically using the card reader, so you could run them using either an HP-67, HP-97, HP-41C, HP-41CV, HP-41CX, or an HP-42S.

Best regards from V.

Let me get this straight
Message #4 Posted by Mike on 11 Nov 2003, 10:18 a.m.,
in response to message #1 by K. Ethiraj Reddy

You want a calculator that has functions that produce bogus results?

Re: HP Calculator
Message #5 Posted by Massimo Gnerucci (Italy) on 11 Nov 2003, 12:15 p.m.,
in response to message #1 by K. Ethiraj Reddy

Dunno if this does all you need but you can have a look here:


Re: HP Calculator - astrology
Message #6 Posted by Tom (UK) on 12 Nov 2003, 3:34 a.m.,
in response to message #1 by K. Ethiraj Reddy

You need to find an HP calculator with a random number generator. This is all you need to give you results with the required acuracy for the tasks you mention.

Astrology and Mathematics
Message #7 Posted by Tom Sherman on 13 Nov 2003, 9:55 a.m.,
in response to message #1 by K. Ethiraj Reddy

The founder of modern trigonometry, including the spherical trigonometry used for positional astronomy, was Johann Muller (known as Regiomontanus), who was an astrologer as well as a genius of mathematics and astronomy. Johann Kepler (of elliptical orbits and Kepler's Laws)was an impassioned astrologer. Isaac Newton had some interest, but was mostly absorbed with alchemy and theology instead.

Astrology has to use the same mathematics as conventional astronomy to predict the movements of the planets, moon, sun, and stars. You and I may reasonably doubt that the movements of the celestial bodies should be interpreted in terms of human destinies, but it is not unreasonable that people of all times might do so. Think of the effects of diurnal cycles and of the seasons upon all life and upon the wind and weather. And modern cosmology and general relativity suggest that the properties of any microcosm are related to the macrocosm as a whole -- that even the inertial mass of the pen in your hand or the molecules in your body is related to the existence of the whole universe around us.

Sounds like a sermon, but sometimes the stars carry me away.


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