181. http://www.aaa.org/EyepieceFiles/aaa/2015_12_December_Eyepiece.pdf
... Journal of the Amateur Astronomers Association of New York December 2015 V olume 64 Number 12; ISSN 0146-7662 Our Solo Sun Stranded without Star Siblings AAA LECTURE SERIES By Rafael Ferreira Double-sun planets like Tatooine from Star Wars are no longer the stuff of science fiction thanks to Kepler. ... Yes, the gravity that you experience on Earth every day is the key component to making stars. ... Disk fragmentation usually occurs for stars with 10 or more solar masses. ...