Alvan Graham Clark
Alvan Graham Clark (born July 10, 1832 in Fall River , Massachusetts , † June 9, 1897 in Cambridge , Massachusetts) was an American astronomer and telescope builder.
He was the son of telescope maker Alvan Clark . On January 31, 1862, he discovered Sirius B , Sirius' companion . This was the first white dwarf to be discovered .
In 1881, Clark was elected a member of the American Academy of Arts and Sciences in Cambridge, Massachusetts.
The lunar crater Clark is named after him and his father.
Web links
- OC Wendell, GE Hale: Alvan Graham Clark. In: Astrophysical Journal , vol. 6 (1897), pp. 136-138. (Obituaries, english)
Individual evidence
- ^ Members of the American Academy. Listed by election year, 1850-1899. (PDF, 50 kB) at the American Academy of Arts and Sciences (amacad.org).
- ↑ Clark (moon crater) in the Gazetteer of Planetary Nomenclature of the IAU (WGPSN) / USGS
personal data | |
---|---|
SURNAME | Clark, Alvan Graham |
BRIEF DESCRIPTION | American astronomer and telescope builder |
DATE OF BIRTH | July 10, 1832 |
PLACE OF BIRTH | Fall River , Massachusetts |
DATE OF DEATH | June 9, 1897 |
Place of death | Cambridge, Massachusetts |