hpcalc.org - HP 48 Archive

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 62 files totaling 12021KB in this category.

Accurate Planetary Coordinates 1.0   (details) 48 ENG   12KB/15KB
Displays coordinates for finding planets in the sky.
By Arnold Moy. 1997/08/21

ALBW 1.1   (details) 49/50 48 ENG   3KB/1KB
ScreenshotALBW = 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.
By Mike Richards. 2001/03/02

Almanac   (details) 48 ENG   3KB/7KB
Astronomy almanac program.
Author unknown. 1998/05/15

Almanac   (details) 48 ENG   9KB/6KB
Program to do celestial navigation. It 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.
By Thomas R. Metcalf. 2008/08/11

Analemma   (details) 48 ENG   5KB/3KB
ScreenshotShows the position of the Sun (in degrees of declination and minutes of right ascension) relative to "where it is supposed to be."
By Craig A. Finseth. 1997/08/21

AST48 1.01   (details) 48 ITA   235KB/107KB
ScreenshotAstronomical 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.
By Paolo Campai and Paolo Fani. 2002/09/22

Astro   (details) 48 ENG   3KB/2KB
ScreenshotThis is a small astronomical database of objects in the solar system.
By Ian Matthew Smith. 1997/08/21

ASTRO2012 3.0   (details) 49/50 48 ENG   105KB/57-112KB
ScreenshotPosition 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.
By Jean-Marc Baillard. 2018/02/27

ASTRO2300 1.0   (details) 48 ENG   40KB/55KB
These programs are improved versions of similar programs in ASTRO2012. The position of the Sun, the Moon and the major planets are calculated with a precision of 1 arcsecond over the interval [1700,2300] (and probably more years); for Pluto, only between 1900 and 2100.
By Jean-Marc Baillard. 2021/04/10

AstroLib 4.1   (details) 48 ENG   65KB/21KB
ScreenshotProvides 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 DateLib.
By Robert H. Parry. 1999/05/03

Astronomy   (details) 48 ENG   9KB
Astronomy routines, with tools for converting between dates and Julian days, and other date and angle conversions. Requires the Browser program to run.
By Lauren Nelson and Craig A. Finseth. 1998/02/27

Celestial and DR Navigation   (details) 48 ENG   7KB/9KB
ScreenshotTools 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.
By Robert Irving. 2008/08/13

Celestial Navigation 4.3   (details) 48 ENG   25KB/21KB
ScreenshotComputes 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.
By Thomas R. Metcalf. 2017/08/12

Ciel 1.5   (details) 48 FRA   14KB/17KB
ScreenshotSky watching program designed to help observe the planets.
By Jean-Michel Pellerin. 2000/04/29

COSMO 1.0   (details) 49/50 48 ENG   11KB/6KB
Contains several programs to compute the age (and period) of the universes and the distances of a galaxy knowing its redshift. Empty universes, Tolman universes, cyclic universes and our universe(?). They employ Carlson elliptic integrals and numerical integration.
By Jean-Marc Baillard. 2021/09/12

Digital Setting Circles 2.0   (details) 48 ENG   15KB/17KB
ScreenshotAllows 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.
By Arnold Moy. 1998/04/13

Eclipse 1.1   (details) 48 ENG   10KB/16KB
ScreenshotEclipse calculates and animates solar and lunar eclipses.
By Arnold Moy. 1997/08/21

Elios   (details) 48 ENG   2340KB/5KB
This software is an extension of MASTRO library number 1002 written by Martin A. Lang.
By Giuseppe Belfiore. 2008/12/31

EPHE 2.13   (details) 49/50 48 ENG FRA ESP   406KB/92KB
ScreenshotComputes 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.
By Jean Philippe Eimer. 2007/09/25

Ephem 1.0   (details) 48 ENG   13KB/6KB
ScreenshotThis 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.
By Keith J. Farmer. 2001/12/20

HPlanétarium 3.08   (details) 49/50 48 39/40 ENG FRA   457KB/43KB
ScreenshotHPlanetarium 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.
By Khanh-Dang Nguyen Thu-Lam. 2006/12/23

IMOD3 1.0   (details) 48 ENG   3KB/2KB
ScreenshotCalculates 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.
By Mike Richards. 2001/01/26

JMOON 2.0   (details) 48 ENG   6KB/7KB
ScreenshotJMOON2 allows you to view present, past and future positions of Jupiter's most commonly known moons (Callisto, Europa, Io, Ganymede).
By Arnold Moy. 1997/08/21

JPLEPH 1.0   (details) 48 ENG   97KB/12KB
Several programs to use the JPL Ephemerides DE421-DE422-DE423-DE424 and DE406-DE408. They calculate the barycentric, heliocentric and geocentric coordinates of the Sun and the major planets (directly geocentric for the Moon). They also compute the nutation & libration, except DE406 & DE408.
By Jean-Marc Baillard. 2012/09/15

Map2/48 1.04   (details) 48 ENG   39KB/16-43KB
Star plotter for use with Urania/48 (see below).
By D. Rodriguez. 1999/06/01

MASTRO   (details) 48 ENG   11KB/13KB
ScreenshotComprehensive 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.
By Martin A. Lang. 1998/10/28

Moon 2.0   (details) 48 ENG FRA   5KB/2KB
Here is an improved program to calculate and display the phase of the moon.
By Craig A. Finseth and Dan Gerson. 1997/08/21

Moon 3.0   (details) 48 ENG FRA ESP POR DEU ITA   7KB/16KB
ScreenshotAn 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.
By Craig A. Finseth, Dan Gerson, and Werner Ogrodnik. 2005/11/25

Moon Calendar 1.0   (details) 48 ENG   4KB/2KB
ScreenshotDisplays calendars that show the phase of the moon.
By Arnold Moy. 1998/05/08

Moon Phase   (details) 48 ENG   3KB/2KB
Plots moon phase and movement of the moon over a period of time.
By Craig A. Finseth, Dan Gerson, and Norman Walsh. 1998/02/27

MPHASE   (details) 48 ENG   2KB/1KB
ScreenshotGiven a date, displays the phase of the moon on that date.
By Ronald B. Johnson. 2017/08/19

NASIR 1.2   (details) 48 ENG   15KB/7KB
ScreenshotProgram 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.
By Kati Sinenmaa. 2017/07/04

NAV48 Tricks   (details) 48 ENG   17KB
Shortcuts and tricks for Sparcom's Celestial Navigation Pack.
By Thomas R. Metcalf. 1998/01/09

NAVII   (details) 48 ESP   4KB/8KB
ScreenshotAstronomical navigation program for the HP 48.
By Victor Valdes. 1997/10/08

Navstar   (details) 48 ENG   3KB/2KB
This is a program that is primarily for doing calculations for Air Navigation, given Departure Lat Long, and Destination Lat Long, along with Air Speed, Fuel Consumption, Wind Direction and Speed it will calculate the Heading between the two Lat & Long that you specified, it will also Calculate Ground Speed and the Fuel Consumption and the Time that the flight will take.
By Alistair Grant. 1997/08/21

Orbit Determination 1.0   (details) 49/50 48 ENG   41KB/16KB
Determines orbits using the method of Gauss-Herrick-Gibbs for 3 observations and Herget's method for more than 3 observations. Has different utilities to calculate the position of a comet or asteroid. Supports dates in Gregorian or Julian calendar. Accurate position of the Sun.
By Jean-Marc Baillard. 2015/07/26

OUTP   (details) 49/50 48 ENG   6KB/4KB
Computes the heliocentric ecliptic coordinates of Jupiter, Saturn, Uranus, Neptune and Pluto (outer planets) between 2020/12/31 0h TT and 2022/01/19 0h TT. The longitudes L & latitudes B are referred to the mean ecliptic of the date. The precision is better than 10^(-6) degree for L & B and better than 2x10^(-8) AU for the distance R between the Sun & the planet. They are computed by polynomials fitted to JPL DE431.
By Jean-Marc Baillard. 2021/01/17

Phase Of Moon 1.0   (details) 48 ENG   8KB/4KB
ScreenshotCalculates the date and time of moon phases.
By Giuseppe Belfiore. 2003/05/07

Planets   (details) 48 ENG   7KB/5KB
ScreenshotThis program calculates the positions of the planets in the sky.
By Tim Strong. 1997/08/21

Plasy   (details) 48 ENG   2KB/1KB
ScreenshotA comfortable information program presenting the basic physical and geometrical data on the planetary system. Updated with the latest data (November 2000).
By Wolfgang Rautenberg. 2000/11/12

QVSOP 1.01   (details) 48 ENG   41KB/17KB
Faster planet positions for 1998-2025. Originally designed for use with Urania but works independently. Includes source code. Based on a User RPL program by Keith Farmer.
By Georg Zotti. 2000/04/29

SALAT 1.2G   (details) 48 FRA   38KB/36KB
ScreenshotCalculates SALAT times for Muslim prayers.
By Bismillah. 2001/11/11

SATCO 3.1.1   (details) 49/50 48 ENG   381KB/51KB
ScreenshotProvides 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.
By Mike Richards. 2005/09/03

SatDish 1.1   (details) 49/50 48 ENG   40KB/2KB
ScreenshotA 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.
By Mike Richards. 2005/06/04

SATlt 1.3   (details) 48 ENG   101KB/7KB
ScreenshotLight 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.
By Mike Richards. 2002/03/31

Sky   (details) 48 ENG FRA   26KB/7-16KB
ScreenshotA 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.
By Chris Heilman. 2017/07/04

Sparcom Celestial Navigation Pac 2.5.1   (details) 49/50 48 ENG   6101KB/128KB
ScreenshotThis 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.
By Thomas R. Metcalf and Eddie C. Dost. 2012/12/25

StarMaHP 1.22   (details) 48 ENG   20KB/24KB
ScreenshotGives 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.
By Dennis Straley. 1999/05/15

StarMaHP 3.2   (details) 48 ENG   82KB/78KB
ScreenshotGives 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.
By Dennis Straley. 2000/11/26

Starplotter 1.1   (details) 48 ENG   14KB/17KB
ScreenshotStar 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.
By Arnold Moy and John B. Call. 2001/12/22

SunCalc   (details) 48 ENG   3KB/2KB
ScreenshotCalculates the time for sunrise and sunset, given the coordinates of your position, your timezone and the date.
By Patrick Rendulic. 2000/05/27

Suncalc 1.0   (details) 48 ENG   5KB/2KB
Modified version of Patrick Rendulic's sunrise/set calculator, extremely easy to use. Written in User RPL, so can be a bit slow.
By Patrick Rendulic and Morten Søborg Elmbo. 2000/09/12

Sunrise / Sunset   (details) 48 ENG   4KB/2KB
Shows the time of the sunrise and sunset.
By Charles Kluepfel. 1997/08/21

Tools for astronomical and terrestrial navigation 0.1   (details) 48 DEU   133KB/11KB
ScreenshotSome small tools for astronomical (Ephemerids of sun and some stars, real height and azimuth, total correction) and terrestrial navigation (orthodrome and loxodrome).
By Ole Hympendahl. 2008/08/30

TruHPoint 1.0   (details) 48 ENG   17KB/7KB
ScreenshotProvides satellite antenna pointing angles with 3 decimal point accuracy. Allows accurate calibration of antenna tracking systems. Based on Intelsat Earth Station Standard (IESS) 412.
By Mike Richards. 2002/03/31

Tyko 2.1   (details) 48 ENG   21KB/26KB
ScreenshotThe 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.
By Kati Sinenmaa. 1997/08/21

Tyko 3.1   (details) 48 ENG   23KB/40KB
ScreenshotThe 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.
By Kati Sinenmaa. 1998/02/27

Urania Documentation 2.1   (details) 49/50 48 ENG   308KB
Documentation for use with the Urania/48 Libre and Urania/49 Libre libraries. In PDF format. Now available for free use.
By Georg Zotti. 2017/10/22

Urania Supplemental Disk   (details) 49/50 48 ENG   346KB/1+KB
Supplemental collection of programs for use with the Urania/48 Libre and Urania/49 Libre libraries.
By Georg Zotti. 2017/10/22

Urania/48 Libre 2.1   (details) 48 ENG   223KB/128-424KB
ScreenshotThe 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.
By Georg Zotti. 2017/10/22

VIT97   (details) 48 ESP   6KB/11KB
ScreenshotAstronomical navigation applications.
By Victor Valdes. 1997/10/06

XTime 1.1   (details) 49/50 48 ENG   21KB/14KB
ScreenshotExtended 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.
By Marco J. de Vries. 2008/08/30

Part of the HP Calculator Archive,
Copyright 1997-2023 Eric Rechlin.