James Edward Keeler

1857 – 1900

• Photographs of nebulae and clusters made with the Crossley reflector
• Earthquakes in California in 1889
• On the spectra of the Orion nebula and the Orion stars
• Photographs of nebulæ and clusters
• Physical observations of Mars made at the Allegheny Observatory in 1892
• The modern spectroscope
• Visual observations of the spectrum of [beta] Lyræ