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Alien Module 2: Vargr, by Simon Beal (2009) Tripwire, by Simon Beal (2009) Alien Module 3: Darrians, by Pete Nash 2010 ISBN 978-1907218613; Crowded Hours, by Mongoose Publishing (2010) Reft Sector, by Martin J. Dougherty (2010) Reign of Discordia, by Darrin Drader (2010) Sector Fleet by Mongoose Publishing (2010) Starports, by Mongoose ...
Star Frontiers is a space opera role-playing game that is set near the center of a spiral galaxy (the setting does not specify whether the galaxy is our own Milky Way ). A previously undiscovered quirk of the laws of physics allows starships to jump to "The Void", a hyperspatial realm that greatly shortens the travel times between inhabited ...
For example, the nearest star to the Earth after the Sun is Proxima Centauri, about 4.2 light-years (4.0 × 10 13 km; 2.5 × 10 13 mi) or 30 million (3 × 10 7) solar diameters away. To visualize that scale, if the Sun were a ping-pong ball , Proxima Centauri would be a pea about 1,100 km (680 mi) away, and the Milky Way would be about 30 ...
This gave an isophotal diameter for the Milky Way at 26.8 ± 1.1 kiloparsecs (87,400 ± 3,600 light-years), by assuming that the galactic disc is well represented by an exponential disc and adopting a central surface brightness of the galaxy (μ 0) of 22.1 ± 0.3 B-mag/arcsec −2 and a disk scale length (h) of 5.0 ± 0.5 kpc (16,300 ± 1,600 ly).
Gaia Sky. ). [1] Gaia Sky is an open-source astronomy visualisation desktop and VR program with versions for Windows, Linux and macOS. It is created and developed by Toni Sagristà Sellés in the framework of ESA 's Gaia mission to create a billion-star multi-dimensional map of our Milky Way Galaxy, in the Gaia group of the Astronomisches ...
Sagittarius A*, abbreviated Sgr A* ( / ˈsædʒ ˈeɪ stɑːr / SADGE-AY-star [3] ), is the supermassive black hole [4] [5] [6] at the Galactic Center of the Milky Way. Viewed from Earth, it is located near the border of the constellations Sagittarius and Scorpius, about 5.6° south of the ecliptic, [7] visually close to the Butterfly Cluster ...
574.999. LC Class. QB54 .A84 1979. Extraterrestrial Civilizations is a 1979 book by Isaac Asimov, in which the author estimates the probability of there being intelligent extraterrestrial civilizations within the Milky Way galaxy. This estimation is approached by progressively analyzing the requirements for life to exist.
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