noelcollection: Denison Olmsted (1791-1859) was an American astronomer and physicist who taught at t
noelcollection: Denison Olmsted (1791-1859) was an American astronomer and physicist who taught at the University of North Carolina. An Introduction to Astronomy was one of several works he published on the subject. These photos show telescopic views of planets, the Great Comet of 1843, a nebula, and a sextant. -- source link