Jump to content

Alvan Clark: Difference between revisions

From Wikipedia, the free encyclopedia
Content deleted Content added
Rescuing 1 sources and tagging 1 as dead. #IABot (v1.6.1) (Balon Greyjoy)
Line 46: Line 46:
==References==
==References==
{{reflist}}
{{reflist}}
* {{cite encyclopedia | url = http://reference.allrefer.com/encyclopedia/C/Clark-Al.html | title = Alvan Clark, Astronomy, Biographies | encyclopedia = AllRefer.com }}
* {{cite encyclopedia | url = http://reference.allrefer.com/encyclopedia/C/Clark-Al.html | title = Alvan Clark, Astronomy, Biographies | encyclopedia = AllRefer.com | deadurl = yes | archiveurl = https://web.archive.org/web/20040623152608/http://reference.allrefer.com/encyclopedia/C/Clark-Al.html | archivedate = 2004-06-23 | df = }}
* {{cite book | title = Alvan Clark & Sons, Artists in Optics | author = Deborah Jean Warner | author2 = Robert B. Ariail | last-author-amp = yes | isbn = 0-943396-46-8 }}
* {{cite book | title = Alvan Clark & Sons, Artists in Optics | author = Deborah Jean Warner | author2 = Robert B. Ariail | last-author-amp = yes | isbn = 0-943396-46-8 }}


Line 56: Line 56:
==External links==
==External links==
{{commons category|Alvan Clark}}
{{commons category|Alvan Clark}}
* [http://www.nga.gov/cgi-bin/tconstref?tperson=1144&type=a National Gallery of Art] has works by Clark
* [http://www.nga.gov/cgi-bin/tconstref?tperson=1144&type=a National Gallery of Art]{{dead link|date=December 2017 |bot=InternetArchiveBot |fix-attempted=yes }} has works by Clark


{{Authority control}}
{{Authority control}}

Revision as of 00:25, 12 December 2017

Alvan Clark
Born(1804-03-08)March 8, 1804
DiedAugust 19, 1887(1887-08-19) (aged 83)
NationalityAmerican
AwardsLalande Prize (1862)
Rumford Prize (1866)
Scientific career
FieldsAstronomy

Alvan Clark (March 8, 1804 – August 19, 1887), born in Ashfield, Massachusetts, the descendant of a Cape Cod whaling family of English ancestry, was an American astronomer and telescope maker. He was a portrait painter and engraver (c.1830s-1850s), and at the age of 40 became involved in telescope making. Using glass blanks made by Chance Brothers of Birmingham and Feil-Mantois of Paris, his firm Alvan Clark & Sons ground lenses for refracting telescopes, including the largest in the world at the time: the 18.5-inch (47 cm) at Dearborn Observatory at the Old University of Chicago (the lens was originally intended for Ole Miss), the two 26-inch (66 cm) telescopes at the United States Naval Observatory and McCormick Observatory, the 30-inch (76 cm) at Pulkovo Observatory (destroyed in the Siege of Leningrad; only the lens survives), the 36-inch (91 cm) telescope at Lick Observatory (still third-largest) and later the 40-inch (100 cm) at Yerkes Observatory, which remains the largest successful refracting telescope in the world. One of Clark's sons, Alvan Graham Clark, discovered the dim companion of Sirius. His other son was George Bassett Clark; both sons were partners in the firm.

Two craters bear his name. The crater Clark on the Moon is jointly named for him and his son, Alvan Graham Clark, and one on Mars is named in his honor.

Alvan Clark Refractor Telescope at Lowell Observatory

See also

Portraits by Clark

References

  • "Alvan Clark, Astronomy, Biographies". AllRefer.com. Archived from the original on 2004-06-23. {{cite encyclopedia}}: Unknown parameter |deadurl= ignored (|url-status= suggested) (help)
  • Deborah Jean Warner; Robert B. Ariail. Alvan Clark & Sons, Artists in Optics. ISBN 0-943396-46-8. {{cite book}}: Unknown parameter |last-author-amp= ignored (|name-list-style= suggested) (help)

Further reading

  • "Recent Deaths. Alvan Clark." Boston Daily Evening Transcript, 19 August 1887.
  • "Autobiography of Alvan Clark." New-England Historical and Genealogical Register 43 (January 1889): 52-58.
  • Warner, Deborah Jean. Alvan Clark & Sons, Artists in Optics. Washington, 1968.