JPlanet is a Java application
that computes the location of the sun, the moon and the planets visible to the naked eye for any
time and any place on earth. It also contains a rudimentary star catalog (400
stars). For more information see
the manual that goes with
the download. There are two version MacJPlanet for Macintosh OS X (10.4+) and PCJPlanet for PC.
PCJPlanet
SEAC is an application that handles conversion between all the main South-East Asian Calendars
and the Western Calendar. Also
it gives the location of the planets computed according to the traditional methods in SEAsia, based on Faraut: Astronomie Cambodgienne, Hanoi, 1910. Besides
there are many other options in the application like the possibility of seaching for cyclic days and lagna computations. The archive includes a detailed manual for the program.The application is available in tree versions: SEAC.dmg for Mac OS X (10.4 or higher),
SEAC.zip for Windows, and SEACOS for Mac OS 9.x or Max OS X 10.3. Both the first versions need Java 1.5.
SEAC OS 9.x
HIC are Java applications that handles conversion
between the traditional
Hindu calendars and the Western Calendar.
Start and end times of nakshatras, tithis, yogas are computed and displayed. There are three options for the calendar: the ancient Suryasiddhanta, the modern Suryasiddhanta
and the Aryasiddhanta. There
are two packages,
one for Macintosh (HIC.dmg)
and one for Windows PC (HIC.zip). Both
packages include a manual.
HIC.zip
BabChron is a Java application
that converts from the Babylonian Calendar from 626 B.C to A.D.75 based
primarily on the standard work
of Parker and Dubberstein, corrected with new data from
Hunger and Sachs: Astronomical Diaries.
The zipped archive contains a .jar file for Windows users and an application package for Mac OX users as well as a small manual.
The data file BabChron.txt must reside
in the same folder as the main application.
BabChron
Szizigy is a Java application
for finding the time of the phases of
the moon for times 2000 BC to AD 4000. Phenomena is a similar Java application for finding the "phenomena"
of the planets. These are for the inner planets: inferior
conjunction, superior conjunction, first and second
stations (standstills), maximum east
and west elongations. For the outer
planets the phenomena are: conjunction, opposition, first
and second stations. The applications can be run Macintosh or Windows having at least Java 1.5 implemented. The applications are both including
short manuals packed in the zipped
file "Phenom" below.
Phenom
Galilean Moons is a Java application for investigating the
four Galilean moons of Jupiter. The application uses Meeus's very accurate
algorithm to compute the locations of the moons. The application gives times for occultations and eclipses of the moons. A short manual is included.
The package includes two versions, one for Windows PC,
the other for Mac OSX.
Galilean
Moons
Patithin is a Java application
that draws a Thai "Patithin", a diagram and table of
the locations of the
planets for a given month/date according
to South-East Asian ideas of
the universe. The algorithms
faithfully reproduce the schemes presented in the classical Luang Wisandarunkorn: Khamphi Horasatr Thai, Bangkok, 1965.
Patithin
(Windows)
Here is a link
to a pdf scan of Faraut,
Astronomie Cambodgienne,
Phnom Phen 1910. Faraut
Astromodels (zipped) contains eleven Excel applications that simulate the algorithms of several famous astronomers.
1. Almagest.XLS implements Ptolemy's astronomical models.
2. HandyTables. XLS implements Ptolemy's later updated version.
3. The Tables of Muhammad Ibn Mûsâ Al-Khwârizmî.
4. Al-Battânî.XLS implements the Tables of Al-Battânî.
5. The Toledan Tables. These tables are
rather similar to the tables of
al-Battânî but uses so called trepidational precession.
6. AlfonsoTab.XLS computes the locations of the planets based on the Alfonsine Tables, constructed under king Alfonso X in 11th century Spain. These tables
are essentially a somewhat improved version of Ptolemy's tables
in the Almagest.
7. The Prutenic Tables feature
Copernicus' model of the planetary system as published by
Erasmus Reinhold in A.D. 1551.
8. Streete.XLS , for the sun, moon and planets, is based on
Thomas Streete: Astronomia
Carolina from 1661.
9. Tycho.XLS uses Tycho Brahe's model for the orbits of the Moon and the Sun as presented in his "Astronomiae Instauratae Progymnasmata".
10. The tables of Vincent Wing (AD
1619-1668).
11. The Rudolphine Tables.
Astromodels
Streete (zipped)
contains the three PDF documents:
a) The full text
of the 1661 edition of Astronomia Carolina,
b) The tables that go with the text,
c) A small commentary with some biographical notes on Thomas Streete, the mathematical background of the tables, and a list of errata in Streete's text.