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FreewareTips-Astro
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Freeware - Astronomy

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Astronomy software


Stellarium

Stellarium
A planetarium software to observe the celestial vault in a realistic way in 3D. Constellations from many different cultures can be displayed, and many different landscape pictures can be selected.

Celestia

Celestia
A simulation program to explore the universe in three dimensions. You can travel throughout the solar system, to stars and galaxies.

SkyChart

SkyChart
Draws sky charts by using the data in 16 catalogs of stars and nebulae. In addition the position of planets, asteroids and comets are shown. Choose a view with horizon or the whole sky, and with automatic update of the chart with custom time intervals. Includes a comprehensive Ephemeris calendar and more.

Hallo northern sky

Hallo northern sky
A planetarium program which displays the posision of many sky objects like stars, planets, moons, asteroids, comets and more.

WinStars

WinStars
A planetarium utility with 3D technology to display objects from the solarsystem.

Home Planet

Home Planet
A versatile astronomy utility, incl. an earth map showing day/night regions, moon location, the planets positions, sky map and more.

Asynx Planetarium

Asynx Planetarium
A planetarium program and solar system simulator with fast animations and a horizontal sky, geocentric and heliocentric view.

Night Vision

Night Vision
A simple planetarium program that displays the sky from any location on earth. Different time intervals for automatic update of the display can be selected. Horizon and more may be added to the chart.

C2A

C2A
C2A (Computer Aided Astronomy) displays sky objects, planetary positions, asteroid and comet paths, ephemeris, telescope control and more.

KStars

KStars
Provides an accurate graphical simulation of the night sky with stars, DSO, planets and more. Also include a sky calendar tool and several other tools.

Gaia Sky

Gaia Sky
A real-time, 3D, astronomy visualisation software.

NASA’s Eyes

NASA’s Eyes
Experience Earth and our solar system, the universe and the spacecraft exploring them, with immersive 3D simulations.

Planetary, Lunar, and Stellar Visibility

Planets Visibility
Presents a 3-color diagram that shows when a planet, a star, the moon or the sun is visible during any year from 3000 BC to AD 6000 at any location on the earth.

Orbiter

Orbiter
A free flight simulator that goes beyond the Earth's atmosphere. Take a tour through the solar system. The emphasis is firmly on realism.

Special utilities


AstroCalc

AstroCalc
Displays information about the moon and the planets, calculates the position of planets, hours of rising/transit/setting, visualization of the position of planets and more.

Moonphase

Moonphase
Displays the moon phase of a selected date and the moon- and sun rise/transit/set.

NightCal

NightCal
A tool to create a monthly calendar for moon- and sun rise/set and every days moon phase and more. Includes printing and saving to an image file.

WinEphem

WinEphem
Shows the ephemerides of the solar system bodies and many other objects. Calculates celestial coordinates, rise, transit, set times, topocentric and geocentric distances and more.

Virtual Moon Atlas

Virtual Moon Atlas
A program for moon observation or survey.

Virtual Planets Atlas

Virtual Planets Atlas
Can visualize the Solar System planets and satellites aspect for every date and hour, and study the Solar System bodies and their surface.

SunCalculator

SunCalculator
Calculates Sunrise, Sunset and dawn times. Also graphically displayed. German homepage, but program is in english.

LunaSolCal

LunaSolCal
Calculate times of sunrise, sunset, moonrise and moonset for your location at any date, displays Sun- and Moon path and more.

Daylight Chart

Daylight Chart
Displays a graph of the variations in day length for a year for any location in the world. The effect of daylight savings time is also displayed, and the charts can be saved and printed.

gSky Digest

gSky Digest
An application that presents astronomy events calculated for your home location. It comes with detailed information about the Sun, the Moon and 7 planets.

SPC

SPC
Calculate the position of the bottom and top of the Sun's rim, sunset and sunrise time and twilight at any geographical location.

BoPlanets

BoPlanets
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.

Your Weight On Other Worlds

Weight
An online program that gives you the possibility to determine your relative weight on Mars, the Moon and other objects. See also the "LINKS" part on the page and try "Your Age On Other Worlds".

Marble

Marble
Is a virtual globe and world atlas for exploring the world. Measure distances between locations, view clouds and sun shadow, follow satellites and space stations and display their orbits. Marble also offers maps of the moon and other planets and more.

Mobile apps


SkEye

SkEye
A planetarium app to identify stars, constellations and other sky objects. Displays among other the horizon line and the ecliptic for the location you set and it can be used together with a telescope.

Sky Map

Sky Map
Planetarium app to identify stars, planets, meteor showers and more.

Planisphere

Sky Map
A simple star chart that shows sun, moon and stars as well as constellations and planets from a user defined location and point of time.

Suntimes

Suntimes
An app that displays sunlight and moonlight times for a given location. Sunrise and sunset and equivalent for the moon, twilights (civil / nautical / astronomical), blue and golden hour, solstices and equinoxes, moon phases and illumination and more.

LunaSolCal

LunaSolCal
Calculate times of sunrise, sunset, moonrise and moonset for your location at any date, displays Sun- and Moon path and more.

Nightshift

Nightshift
Gives you tips about what can be seen in tonight’s sky - planets, active meteor showers, DSO, moon and more.

Eclipse

Eclipse
Allows to know in a simple way the general and local circumstances for solar and lunar eclipses and planetary transits.

PlanetDroid

PlanetDroid
An app for calculating high precision ephemeris and positions of Sun, Moon and the Planets.

FreewareTips Astro 2008
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