Again, we turn down most books that have been self-published unless they have a special track record. We have taken a small number on, however, and sold them to major publishers for a nice sum. But that is an exception to the rule.
51 Pegasi, in the constellation of Pegasus, 47.9 light-years away from Earth, was discovered to be the first major star apart from the Sun to have a planet (and extrasolar planet) orbiting around it.