Historedia
Person

Alvan Graham Clark

Events
1
Episodes
1
Years
1862

Every event in Historedia whose sources name Alvan Graham Clark, with the role they cite and all of that event’s episodes. This is not a biography, and mentions are grouped by name, so two people with the same name can share this page.

Events and episodes

  1. Alvan Graham Clark observes Sirius B

    1862

    Role: Astronomer and telescope-maker

    1. 31 January 1862 · Cambridgeport, MassachusettsFirst Observation of Sirius B

      Alvan Graham Clark observed Sirius B on 31 January 1862 using an 18.5-inch refractor in Cambridgeport, Massachusetts.

Sources

  1. Alvan Graham Clark Wikipedia, revision of 2026-09-06