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...Eclipse circumstances are displayed in tabular form, on a map, a compass, or in an image, with azimuthal or equatorial orientation, which can be flipped horizontally, vertically, or both. The map also displays the eclipse path, with the central line and the north and south limits of the central eclipse. The eclipse path is refined when you zoom in. For the experts or adventurous, eclipse elements can be modified, to take into account new updated elements, or experiment with the Besselian elements.

This library contains the parametrization of pp->gamma cross section functions based on Phys.Rev. D90 (2014) 12, 123014 (astro-ph/1406.7369) work. The functions are written in Python, Fortran and Matlab. Please, if you use this library DO NOT reference to this webpage, instead reference to Phys.Rev. D90 (2014) 12, 123014 (astro-ph/1406.7369), "Parametrization of gamma-ray production cross-sections for pp interactions in a broad proton energy range from the kinematic threshold to PeV energies" by Ervin Kafexhiu, Felix Aharonian, Andrew M. Taylor, Gabriela S. ...

Q3C is the plugin for PostgreSQL, designed for the work with large astronomical catalogs or any catalogs of objects on the sphere.Q3C allows you to perform fast searches within a circles, ellipses or polygons on the sky and fast cross-matches. The main development happens on https://github.com/segasai/q3c/

Videoguide allows you to correct star position in case of bad guiding system of telescope. Here is software for videoguide, hardware part consists of PIC-ruled step motors, which tilt a glass plate, correcting by this tilt position of a star or other object. The guiding object is selected by operator in a part of video from gude's CCD-camera. Selected area can be preprocessing by wavelet-filter or median filter and/or histogram equalisation.

Astro Info is a multi-lingual astronomical ephemeris for the PalmOS that provides data for our solar system and other objects. If you wish to get involved, please download a copy of the source code from CVS.

A simple command to convert calendar dates to julian dates. Quite useful in timing situations where you need elapsed time between dates. Also useful for astronomy applications.

OpenUniverse is a fun, fast and free space simulator. It currently focusses on the Solar System and lets you visit all of its planets, major moons and a vast collection of smaller bodies in realtime 3D (using OpenGL).