Find locations of ports and ships using the near Real Time ships map. Search the MarineTraffic ships database of more than 550000 active and decommissioned vessels. There are also fun things to try, hardware, free programming books and tutorials, and much more. Discover information and vessel positions for vessels around the world. There are hundreds of in-depth reviews, open source alternatives to proprietary software from large corporations like Google, Microsoft, Apple, Adobe, IBM, Cisco, Oracle, and Autodesk. The software collection forms part of our series of informative articles for Linux enthusiasts. Our curated compilation covers all categories of software. Read our complete collection of recommended free and open source software. Satellite tracking software for observing purposesģD astronomy and space exploration program Standalone 4-dimensional space visualization applicationįramework for celestial mechanics investigations Prepare different sky maps for a particular observation Tool for astronomical image analysis and precise photometry Astronomy SoftwareĪstronomy visualization desktop and VR program For each application we have compiled its own portal page, providing a screenshot of the software in action, a full description with an in-depth analysis of its features, together with links to relevant resources. Let’s explore the 16 astronomy applications at hand. Hopefully, there will be something of interest here for anyone who wants to study the sky. Sk圜hart gives the amateur astronomer the ability to draw and map out the night sky. Gpredict provides real-time satellite tracking and orbit prediction from a data-oriented interface. This article focuses on selecting the best free astronomy software available for Linux. Download satellite imagery tools like Google Earth, Earth Alerts and more. This category of software lets you map the night sky, plan detailed observations, control telescopes, present star charts, offer observing logs, and much more. That's why sometimes you can see them again within 2 hours of a previous sighting.There is a wide variety of free astronomy software available for Linux that offer real benefits to astronomy enthusiasts. Every 90 minutes, they return to the same point (but a little further away). The satellites move really fast, and travel the entire world in 90 minutes. How can the satellites be visible again less than 2 hours after being seen? A large number of parameters help you to choose specifically or automatically which. The purpose of this program is to prepare different sky maps for a particular observation. In addition the position of planets, asteroids and comets are shown. The older chains like Starlink-1, 2, 3 etc have spread out and are no longer visible as a chain, that's why this app doesn't include them anymore. Sk圜hart lets users draw sky charts, making use of the data in 16 catalogs of stars and nebulae. These 60 satellites initially fly in a "chain" formation, but over time they spread out and move to their own orbits. Starlink is launched in groups of 60 satellites per launch. Where are the older Starlink groups, like Starlink-1, 2, 3, etc? Otherwise the results page will be very cluttered. That way, when you see the first satellite in a chain, the rest will follow behind in that chain. So this app tracks only the first satellite in every "chain" of satellites. Many are in groups of 30-40 satellites, and fly in a "chain" formation. Why are there only a few satellites in this app? Doesn't Starlink have hundreds of satellites? So don't worry about the Live Map, the Results page is what you should believe. But because they're so high up in the sky, you can still see them. They travel nearly 500 km/300 miles EVERY MINUTE. These 60 satellites initially fly in a 'chain' formation, but over time. Where are the older Starlink groups, like Starlink-1, 2, 3, etc Starlink is launched in groups of 60 satellites per launch. The satellites move at an unbelievable speed. That way, when you see the first satellite in a chain, the rest will follow behind in that chain. Why was the satellite very far away on the Live Map when it was supposed to be over me? Daylight-savings/summer/winter are already included, if required. The time is always local, you do NOT need to convert it. The smaller the number, the brighter it is.ĭIM means the satellite might not be very visible. Common Questions - What's the number next to BRIGHT/DIM? Thanks for using this and enjoy gazing at the beautiful night sky! :) If you found this site useful, please consider buying me a coffee to help keep the site free of advertisements. If there are any other questions or problems, you can email me at and I can try to help. Some common questions have been answered below. Using this site, you can find out when the Starlink satellites are expected to be visible at your location.
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