Search Results for "sun"

Java software that predicts transits of any satellite, including the International Space Station, across the moon and sun, and close encounters with Mercury thru Saturn.

...Free with 30.000 deep sky objects and native star databases up to magnitude 18. Online access to GAIA DR2, UCAC4, NOMAD and PPMXL star catalogues or download the USNO UCAC4 up to magnitude 16. The Sun, Moon, the planets and their major moons are all displayed with surface features. It maps the position of co

Virtual Planetarium and other astronomical calculation routines of the Positional Astronomy (Ephemeris Calculation / ISS Visibility / Eclipses / Calendar) --- GUI based on Delphi/Free Pascal, Source Code alternatives based on Python 2.5 and Java 1.6

PreviSat is a satellite tracking software for observing purposes. Very easy to use, it shows positions of artificial satellites in real-time or manual mode. PreviSat is able to make predictions of their passes, predictions of MetOp and COSMO-SkyMed flares, transits of all satellites, predictions of Starlink satellites passes and several other calculations.

SolTrack is a simple, free, fast and accurate C/C++ routine to compute the position of the Sun. The code can be used to track the Sun on low-specs machine, such as a PLC or a microcontroller, and can be used for e.g. (highly) concentrated (photovoltaic) solar power. SolTrack has been developed by Marc van der Sluys, Paul van Kan and Jurgen Reintjes, of the Lectorate of Sustainable Energy at the HAN University of Applied Sciences in Arnhem, The Netherlands.

BoPlanets is a virtual planetarium showing the planets relatively to any observing planet. The planets can be viewed in ecliptical-, equatorial- or horizontal view. The times of rise, transit and set of a planet can be determined. Click on the link below to the web site of BoPlanets to see the help file of BoPlanets.

Simon Newcomb published his theory, known as Tables of the Sun, in 1898. It was used by the American Ephemeris and the Astronomical Almanac into the 1980's to compute the daily positions of the Sun. This Theory is a semi-analytic model which expresses quantities as a trigonometric series with numerical coefficients. This type of model produces a compact computer function which has enough accuracy to be useful to most users.

he JAVA library is designed to read JPL DE/LE ephemerides (DE200, DE405, DE406, DE421, DE422, DE430, DE431, DE440 and DE441) and to calculated the position and velocity of the Sun, Moon, eight major planets and Pluto, also the earth nutations and the lunar librations if they are part of the ephemeris.

Warning: I found an error if the DR position is on the southern hemisphere. The PUB249 pdf files did not show this error and are correct (as far as I checked). All Revisions 8+ and the Windows release have been fixed. This Python TK application calculates a good set of stars for a 3 star fix, makes all calculations similar to the FAAs Celestial Computation Sheet (see FAA doc FAA-H-8083-18). Also, you can create a PDF file that generates Pub 249 Vol 1 for any epoch you specify. The...

Cosmic ray electrons scatter on the photon fields around stars, including the sun, to create gamma rays by the inverse Compton effect. This program computes the spectrum and angular distribution of this emission. The software also includes general-purpose routines for inverse Compton scattering on a given electron spectrum, for example for interstellar or astrophysical source modelling. For further information see these publications: http://arxiv.org/abs/astro-ph/0607563, http://arxiv.org/abs/0801.2178, http://arxiv.org/abs/1104.2093, http://adsabs.harvard.edu/abs/2013NuPhS.239..266O and this conference presentation: https://confluence.slac.stanford.edu/download/attachments/130879399/poster_symposium_sun_2012.pdf and the corresponding conference paper http://arxiv.org/abs/1307.6798 2017 June 16: now available from gitlab https://gitlab.mpcdf.mpg.de/aws/stellarics which will be used for future develpments.

The Aciqra Library Of Astronomical Calculations (Aloac) is a library of theories and formulas relating to astronomy to track planets, the sun and moon as well as conversions between coordinate systems. Formerly known as Aciv.

A C library containing working theories of motion of solar system objects that have been published in the Astronomical Papers prepared for the use of the American Ephemeris. Currently this includes Newcomb's theories "Tables of the Sun", "Tables of Mercury", "Tables of Venus", "Tables of Mars", "Tables of Uranus", and "Tables of Neptune", Hill's theories "Tables of Jupiter" and "Tables of Saturn", as well as the theory known as "The Improved Lunar Ephemeris". Various other theories from selected astronomical journals are also included.

Pysolar is a Python library for calculating the position of the sun relative to the earth as a function of latitude, longitude, and time. There is also code included for other problems related to the development of photovoltaic systems. Still in alpha.

Python & NOVAS. Use Python to calculate the position of Sun, Moon, Planets and Stars with unprecedented precision. PyNOVAS can be used by (Amateur) Astronomers, Sailors and other people interested in Celestial Navigation, Astronomy and Astrometry.

retep is a collection of Java API's covering PDF, XML, J2EE , Swing and now NetBeans modules for displaying astronomical maps, controlling modern "Go-To" telescopes - all in java., and accessing online databases.

Accrete is a physical simulation of solar system planet formation. This simulation works by modelling a dust cloud around a Sun-like star, injecting a series of masses which collect dust, and form planets by accretion.

SolarJ is a library of ephemeris routines, plotting routines, and applications for displaying features visible on the sun and planets in the solar system.