1. 
   Sa galaxy
   (from the article `galaxy`) These normal spirals have narrow, tightly wound arms, which usually are visible because of the presence of interstellar dust and, in many cases, ...
   Found op http://www.britannica.com/eb/a-z/s/1
   
   
2. 
   Sagittarius Dwarf Irregular Galaxy
   The Sagittarius Dwarf Irregular Galaxy or SagDIG is a dwarf galaxy in the constellation of Sagittarius. It lies about 3.4 million light-years away. SagDIG should not be confused with the Sagittarius Dwarf Elliptical Galaxy or SagDEG, a satellite galaxy of the Milky Way. It was discovered by Cesarsk...
   Found op http://en.wikipedia.org/wiki/Sagittarius_Dwarf_Irregular_Galaxy
   
   
3. 
   Sagittarius Dwarf Elliptical Galaxy
   (SagDEG, Sag dSph) A satellite galaxy of the Milky Way and the second closest external galaxy after the Canis Major Dwarf. It is populated, as is usual for a dwarf elliptical galaxy, by old yellowish stars. Obscured by large amounts of dust in the galactic plane, SagDEG was...
   Found op http://www.daviddarling.info/encyclopedia/S/SagDEG.html
   
   
4. 
   Sagittarius Dwarf Irregular Galaxy
   (SagDIG, Sag dIrr) A dwarf irregular galaxy, discovered in 1977, that is a member of the Local Group of galaxies. It has a diameter of about 3,000 light-years and lies about 3,500 light-years away in the constellation Sagittarius at celestial coordinates R.A. 19h 30m, Dec. ...
   Found op http://www.daviddarling.info/encyclopedia/S/SagDIG.html
   
   
5. 
   Samsung Galaxy
   Samsung Galaxy is a series of mobile computing devices produced by Samsung Electronics, all of which use the operating system Android. ==Smartphones== ==Tabletphones== ==Tablets== ==Media players== ==Categorization== Since August 2011, all the smartphones of the Galaxy series are categorized in the...
   Found op http://en.wikipedia.org/wiki/Samsung_Galaxy
   
   
6. 
   Satellite galaxy
   A satellite galaxy orbits a larger galaxy due to gravitational attraction. Although a galaxy is made of a large number of objects (such as stars, planets, and nebulae) which are not connected to each other, it has a center of mass, which represents a weighted average (by mass) of the positions of e...
   Found op http://en.wikipedia.org/wiki/Satellite_galaxy
   
   
7. 
   satellite galaxy
   A small galaxy – typically an irregular or dwarf system – in orbit around a much larger, more massive one. Our own Galaxy, for example, has several satellite galaxies, including the Large and Small Magellanic Clouds.
   Found op http://www.daviddarling.info/encyclopedia/S/satellite_galaxy.html
   
   

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