| Dictionary, Encyclopedia and Thesaurus - The Free Dictionary 1,774,227,301 visitors served. |
|
Dictionary/ thesaurus | Medical dictionary | Legal dictionary | Financial dictionary | Acronyms | Idioms | Encyclopedia | Wikipedia encyclopedia | ? |
Secchi, Pietro Angelo |
Also found in: Hutchinson | 0.03 sec. |
|
Secchi, Pietro Angelo (pyĕ`trō än`jālō sĕk`kē), 1818–78, Italian astronomer, a Jesuit priest. He was director of the observatory of the Gregorian Univ., Rome, from 1849. He is known especially for his work in spectroscopy and was a pioneer in classifying stars by their spectra. In 1860 he made some notable solar-eclipse photographs. His works include a star catalog (1867). How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
|
| ? Mentioned in | |
|---|---|
|
| Encyclopedia |
| Free Tools: |
For surfers:
Free toolbar & extensions |
Word of the Day |
Help
For webmasters: Free content | Linking | Lookup box | Double-click lookup | Partner with us |
|---|