Discovered Horsehead Nebula

discovered Horsehead Nebula in 1888 & helped develop a common designation system for the stars; in charge of the Draper Catalogue project; devised a system for classifying stars according to the relative amount of hydrogen observed in their spectra, known as the Pickering-Fleming system; also made it possible to go back and compare recorded plates by organizing thousands of photographs by telescope along with other identifying factors; credited with the discovery of the first white dwarf (40 Eridani B) & published her discovery in 1910; established the first photographic standards of magnitude used to measure the variable brightness of stars: 1891 discovered spectral variations corresponding to changes in the light from the star Beta Lyrae, indicating it was a double star;

None found

Category:
Astronomy

Completion Status:
yes

Patent Number:
N/A

Co-Inventor:
None