In 1848 he obtained $5,000 from Congress for a naval astronomical expedition to Chile in order to more precisely measure the solar parallax .
Gilliss continued working at the observatory , completing publication of his celestial catalog and providing support to the Office of Coast Survey .
In 1848 Gilliss obtained $5,000 from Congress for a naval astronomical expedition to Chile in order to more precisely measure the solar parallax .
Gilliss continued working at the observatory , completing publication of his celestial catalog and providing support to the Office of Coast Survey .