HP 48 Astronomy Programs
The first size listed is the downloaded file size and the second size listed is the size on the calculator.
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HP 48 Astronomy Programs The first size listed is the downloaded file size and the second size listed is the size on the calculator. |
There are 63 files totaling 12,611 KB in this category.
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ALBW = Allocated Bandwidth. This is a program for satellite communication engineers and planners. It determines the amount of bandwidth required to accommodate a carrier signal on a satellite transponder, given the data rate, coding, and modulation methods. Version 1.1 incorporates occupied bandwidth.
Shows the position of the Sun (in degrees of declination and minutes of right ascension) relative to "where it is supposed to be."
Astronomical library. Computes: ephemeris of Sun, Moon, planets, comets and asteroids mean, apparent, geocentric and topocentric coordinates accurate precession and nutation mean elements of major bodies four systems of celestial coordinates for data input conversion between coordinates eclipses of Sun and Moon - Moon phases rise and set of celestial bodies - twilights Jupiter's satellites - equinoxes and solstices elongations, oppositions and conjunctions catalog of 1158 stars and 110 Messier objects ephemeris of variable stars (with TDB) interactive celestial maps - angular separation chronological cycles and date of Easter sidereal time and clock two time scale (TT or UTC and similar) values of deltaT=TT-UT1 (updated 08/2002) various input modes for dates - time zones auto-adjust of internal clock geodetic and UTM coordinates 30 pre-built and 10 user's coordinates nautical point determination with two stars.
This is a small astronomical database of objects in the solar system.
Position of the Sun, Moon, 9 major planets+xena. Theories VSOP87B + TOP2010A + corrections from DE422. Date of Easter. Positions of the main satellites of Jupiter, Saturn, Uranus. Comets: Parabolic-Hyperbolic-Elliptic motion. Precession formulae valid +/-200,000 years from J2000. Phases of the Moon.
Provides functions for setting the local time variable, the Dead Reckoning position, Long and Lat and, from these variables, computing the positions, magnitudes, and phases of the stars, planets and moon, and more. Requires 
Tools for celestial navigation and dead reckoning. These programs were prepared primarily for the operator of a small ship (sailboat or powered yacht, with magnetic compass) not routinely using celestial navigation. Using these programs, one can take a round of sextant sights, and enter the necessary ephemeris data, without overlooking any necessary input.
Computes a position fix from observations of any number of celestial bodies using a least squares fit to the altitude of the bodies as a function of time. The routine does all the standard corrections for dip, refraction, parallax etc. as well as correcting for motion of the observer between sights.
Sky watching program designed to help observe the planets.
Allows anyone with a telescope equipped with an equatorial mount and setting circles to point and view without any polar alignment. The need for polar alignment is eliminated by a unique system which relies on 2 guide stars.
Eclipse calculates and animates solar and lunar eclipses.
Computes ephemeris of the sun, planets, the moon, stars, Messier objects, comets, and asteroids. Program allows all kind of coordinates, and also gives distance, magnitude, apparent diameter, phase and rising/transit/setting times. Includes version 2.13 for the 49G/49G+/50G, 1.33 for the 48S/SX and 48G/G+/GX, and full PDF documentation.
This library is intended to provide the user with various ephemeris-generating routines, particularly in the calculation of planetary, solar, and lunar positions, and in the estimation of eclipse parameters. Most of the routines used may be found in Duffet-Smith (see the bibliography), although the iterative solution for Kepler's equation is found on pages 85-87 of the AE Roy reference, and none of the routines claim to be speedy or efficient -- mostly due to repeated calculations of positions with no saving of previous results. They have been tested against the examples provided in the sources and match with a reasonable amount of error (probably due to round-off in the examples). Planetary longitudes have been checked against the Menzel and Duffet-Smith sources at random, and are within a degree. A level of familiarity with astronomy and orbital mechanics is assumed.
HPlanetarium is a free (GPL) planetarium for the HP 39/40/48G/49/50 in which you can move, zoom and unzoom the sky map "in real time". Equatorial/azimutal coordinates, rise/transit/set times, elongation, magnitude and diameter can be computed for main planets. You can also point a Meade telescope, and there is an ephemeris generator. Source code for the HP 49 is provided. A light version (only 24 KB) is available for the HP 48G.
Calculates third order intermodulation products in frequency processing devices. It was developed with satellite communications in mind, for the purpose of identifying overdriven earth stations, based on observed intermodulation products in a satellite transponder. The program has general application where 3rd order intermodulation products need to be calculated.
JMOON2 allows you to view present, past and future positions of Jupiter's most commonly known moons (Callisto, Europa, Io, Ganymede).
Comprehensive collection of astronomy and calendar functions: position, rise, culmination and set time and location for sun, moon and all planets, moon phases, calendar, holy days, Julian day, all coordinate and time conversions, general rise and set time, daylight saving time switch, great circle distance.
An upgrade of the program Moon 2.0 to revision 3.0. Several subroutines have been added, including the ability to calculate the moon phase now for any day/time (from 1582-10-15 to the future). It is also now multilingual.
Displays calendars that show the phase of the moon.
Given a date, displays the phase of the moon on that date.
Program based on Tyko for a calendar, clock, and astronomy information. This program does time changes both in the Julian Calendar and the Gregorian Calendar dates, later than March 1st 4712 BC or later than Julian day 98 in the Gregorian calendar or Julian day 60 in the Julian calendar. Also gives data about the sun including the ecliptical, equatorial and horizon coordinates, rising and setting times, Sun's geocentric distance, semi diameter, ephemeris transit time, obliquity of the ecliptic, nutation in longitude and nutation in obliquity.
This is another modified version of the 
Astronomical navigation program for the HP 48.
Calculates the date and time of moon phases.
This program calculates the positions of the planets in the sky.
A comfortable information program presenting the basic physical and geometrical data on the planetary system. Updated with the latest data (November 2000).
Calculates SALAT times for Muslim prayers.
Provides satellite communications link budgeting, antenna siting, and sun interference calculations for geosynchronous satellites. Generates horizon profile drawings and predicted spectrum analyzer traces. Calculates antenna parameters, and bandwidth allocations. Provides for direct conversion and calculation of decibels and carrier to noise ratios. Compatible with 48GX, 48G+, 49G, 49g+, 48gII, and 50g.
A program to determine the transmit gain, receive gain, and figure of merit (G/T) of a parabolic satellite communications antenna. It uses antenna diameter, efficiency, transmit frequency, receive frequency, and receive system noise temperature as inputs. Although developed for satellite communications, it should work with any parabolic antenna system.
Light version of SATCO, a geosynchronous orbit satellite
communications calculator. It provides basic information to help with antenna siting and alignment. It also predicts solar conjunctions (sun interference). Version 1.3 includes satellite and city databases.
A planetarium-style graphic astronomy program. Designed for naked eye observers, the program produces a graphic display of the heavens. You also get the numbers, in a clear, useful format.
This is the Sparcom Celestial Navigation Pac based on the celnav.lib by the original author. The package contains a dump of the original card for use in HP 48 emulators or on a memory card, the port of the software to the 49/50 as a library, and the scanned manual as a PDF. The dump is compatible with the 48SX/48GX; the library is compatible with the 49g+/50g. Redistributed with the permission of the family of Dr. Thomas Metcalf.
Gives a feel for what the sky will look like tonight, next week, last year, or whatever, for beginning astronomers. Includes over 650 stars from all 88 constellations, plus the mean positions of the sun, moon, and 5 nearest planets. This old version is included because it is a third the size of the latest version.
Gives a feel for what the sky will look like tonight, next week, last year, or whatever, for beginning astronomers. Includes over 650 stars from all 88 constellations, plus the highly accurate mean positions of the sun, moon, and all 9 planets. It also has zoom features for viewing smaller areas of the sky, solar eclipses, etc, and can correct for light time and parallax.
Star Plotter produces simple star maps with familiar constellations for anytime of the day, similar to those found in Astronomy and Sky & Telescope magazine. A total of 188 stars make up the database which includes the proper name of the star, magnitude, right ascension and declination. In v1.1, the plotting speed has been improved, and there are minor bug fixes.
Calculates the time for sunrise and sunset, given the coordinates of your position, your timezone and the date.
Some small tools for astronomical (Ephemerids of sun and some stars, real height and azimuth, total correction) and terrestrial navigation (orthodrome and loxodrome).
Provides satellite antenna pointing angles with 3 decimal point accuracy. Allows accurate calibration of antenna tracking systems. Based on Intelsat Earth Station Standard (IESS) 412.
The program gives information about some objects of our Solar System (the Sun, Moon, and all known planets except the Earth), and some of the brightest stars of some well-known constellations. This old version is included because it is much smaller than the current version.
The program gives information about some objects of our Solar System (the Sun, Moon, and all known planets except the Earth), and some of the brightest stars of some well-known constellations.
The Astronomical Companion: an almost complete and expandable implementation of the book "Astronomical Algorithms" written by the well-respected expert Jean Meeus. It is intended mainly for observation preparation and field use, but also for historical research. Now the full version is available for free.
Astronomical navigation applications.
Extended Time, Date, Calendar and Astronomical routines for the HP 48G(X) and 49G(+). Part of these routines are ported from the invaluable HP-41C CALENDARS Users' Library Solutions. The astronomical routines include calculation of times of sunrise, transit and sunset, moon phases, and seasons.