Files can be saved in both TIFF and FITS formats in either 16 or 32 bits.ĬCDStack was developed exclusively to stack CCD images and it does so with extremely sophisticated statistical methods and concepts that were heretofore not available in commercial stacking software. The software does the rest, and by the time you are fully awake the next morning, the images will be ready for post-processing. DeepSkyStacker takes most of the pain out of pre-processing, because all you need to do is load all your images before you go to bed. Stacking software for astro-imaging are not created equal, and while Photoshop or Registax do well in most departments, DeepSkyStacker was developed to satisfy the particular demands of deep sky imaging. The software also makes a great educational and outreach tool as well, and runs on Linux, Mac OS X, and Windows. Where is M13? also provides information on the galactic coordinates, luminosity, distance, and true size and angular diameter of objects. In this way, your observing sessions are greatly enhanced, because you get an almost 3D view of the relationship between a viewed object and the galaxy. Since views through telescopes are flat and one dimensional, this unique software will help you get a sense of an object’s location with respect to the galaxy’s centre, and/or midplane. Celestia runs on Linux, Windows, and Max OSX The basic download includes an enormous catalogue of stars, galaxies, planets, planetary moons, comets, asteroids, and even some historical spacecraft with which to explore the universe, but additional star catalogues and plug-ins are available for download. With this application you get to travel to any one of more than 100 000 stars in the Milky Way in three dimensions, or if you so choose, to points beyond the Milky Way.Īll motions in Celestia are totally seamless, and with an exponential zoom, you can effortlessly explore the Universe in a vast range of scales- from galactic clusters to the area you can see from your spaceship window. While Celestia is primarily a planetarium program, it does not confine you to the surface of the earth. Very realistic atmosphere, sunrise and sunset.Images of nebulae (full Messier catalogue).Constellations for 20+ different cultures.Asterisms and illustrations of the constellations.Extra catalogues with more than 210 million stars.Default catalogue of over 600,000 stars.The following is a list of features taken from the Stellarium homepage: Stellarium runs on all major operating systems, and in all cases, the rendered views are almost indistinguishable from what would be seen through a telescope, binoculars, or with unaided vision. You can also use it to see what the sky looks like at any time in the past, present, or future, and from anywhere on Earth. Stellarium is a planetarium program that keeps track of the motions and positions of stars, planets, comets, and other objects. While there are hundreds of planetarium software suites available, Stellarium is the only free software that is also used in commercial planetaria all over the world today. In fact, almost any situation in which gravity is the dominant force can be simulated accurately.ĪstroGrav is available for both Mac and Windows, and a free, but fully functional trial in several languages is available for download. Comprehensive editing capabilities that allow for the manual insertion of additional objects, or the importation of any of several hundred thousand comets and asteroids.Īpart from the solar system, you can also explore the gravitational effects of exoplanet systems, the collision of globular star clusters, or even watch the evolution of planetary systems from accretion discs.Astronomical, metric, and imperial measurement units.Ecliptic, equatorial, galactic, and horizontal celestial coordinate grids.Simulation time steps that can be set to fractions of a second, to several thousand years.Extensive tabular data with more than 30 editable fields for each object selected.Multiple views that can be animated at the same time with orbits that are calculated dynamically.The software takes the effects of general relativity into account and uses superb interactive three-dimensional rendering that allows you to rotate, and zoom into parts of the solar system while you watch it evolve.ĪstroGrav includes a background of more than 100 000 stars, all the constellations, and planetarium-style viewing points from anywhere in the world. All movements of solar system bodies are based on their gravitational interactions with other bodies, meaning that you get gravitationally correct motions of asteroids, planets, and comets. AstroGravĪstroGrav is a solar system simulator with a difference. You may also like to later check out other articles in this series, including one covering free stargazing apps, and another the best premium astronomy apps currently available on the market.
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