l Suspect planet orbit stars -find system like solar -however many system different -example 51 P -HD 40307 -55 cancri A l Stars don’t need to be sunlike -planet orbit smaller than planets -Astronomers not expected the ubiquity -solar system not common l First confirmed planet around unsunlike star -mass greater than sun -event to create it is violent -very large l Rise up out of ash of the explosion l A few Supernovae remain bound form disk -disks are birthing grounds -solar system took shape dust and gas collapsed -material was kept to the sun -dust and gas form into planets -much process occured in the disk
l Discover psr 1257 by deviation -no other system l Psr B1620-26 far from star , A think it captured from another star
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