Alvan Graham Clark (July 10, 1832 – June 9, 1897) was an American astronomer and telescope-maker. Alvan Graham Clark was born in Fall River, Massachusetts...

42°21′19″N 71°06′33″W / 42.35528°N 71.10927°W / 42.35528; -71.10927 Alvan Clark & Sons was an American maker of optics that became famous for crafting...

Alvan Clark (March 8, 1804 – August 19, 1887), born in Ashfield, Massachusetts, was an American astronomer and telescope maker. He started as a portrait...

named for American astronomer and telescope maker Alvan Clark and his son Alvan Graham Clark. Clark has a narrow inner wall, and thus a wide interior...

as the basis for the Double-Gauss lens first proposed in 1888 by Alvan Graham Clark, which is a four-element, four-group compound lens that uses a symmetric...

a large focal plane. The earliest double Gauss lens, patented by Alvan Graham Clark in 1888, consists of two symmetrically-arranged Gauss lenses. Each...

In 1844 Friedrich Bessel deduced that Sirius was a binary. In 1862 Alvan Graham Clark discovered the companion (Sirius B; the visible star is Sirius A)...

computed an orbit for it in 1851. It was not until 31 January 1862 that Alvan Graham Clark observed a previously unseen star close to Sirius, later identified...

companion. On 31 January 1862, American telescope-maker and astronomer Alvan Graham Clark first observed the faint companion, which is now called Sirius B,...

positional measurement, and eventually led to the discovery of Sirius B by Alvan Graham Clark in 1862, the first discovery of a white dwarf. John Martin Schaeberle...

discoveries in astronomy have occurred. Bruce turned to telescope maker Alvan Graham Clark to see how she could support research in astronomy. Bruce made over...

ironclad warship, USS Monitor, is launched in Brooklyn. January 31 – Alvan Graham Clark makes the first observation of Sirius B, a white dwarf star, through...

Astrographic Catalogue A.C. — Alvan Clark (double stars) Ac / Ack — Agnès Acker (planetary nebulae) A.G.C. — Alvan Graham Clark (double stars) AGC — Arecibo...

Paris, France by Mantois and delivered to Alvan Clark & Sons in Massachusetts where they were completed. Clark then made what would be the largest telescope...

Frémont is court-martialed for mutiny and disobeying orders. 1862 – Alvan Graham Clark discovers the white dwarf star Sirius B, a companion of Sirius, through...

1919) July 6 – Emperor Maximilian I of Mexico (d. 1867) July 10 – Alvan Graham Clark, American astronomer and telescope-maker (d. 1897) July 11 – Charilaos...

Johannes Kepler's supernova, SN 1604, in Serpens is observed. 1862 – Alvan Graham Clark observes Sirius B. 1866 – William Huggins studies the spectrum of...

1908) 1830 – Camille Pissarro, Danish-French painter (d. 1903) 1832 – Alvan Graham Clark, American astronomer (d. 1897) 1835 – Henryk Wieniawski, Polish violinist...

technology involved some significant events, listed below. January 31 – Alvan Graham Clark makes the first observation of Sirius B, a white dwarf star, through...

Wray. On January 31, 1862, American telescope-maker and astronomer Alvan Graham Clark first observed the faint companion, which is now called Sirius B,...

(1713–1765) WGPSN Clark 38°40′S 119°21′E / 38.67°S 119.35°E / -38.67; 119.35 (Clark) 52.11 1970 Alvan Clark (1804–1887) and Alvan Graham Clark (1832–1897)...

Smutko. On January 31, 1862, American telescope-maker and astronomer Alvan Graham Clark first observed the faint companion, which is now called Sirius B,...

France Henri Chrétien 1879–1956 France Alvan Clark 1804–1887 US Alvan Graham Clark 1832–1897 US George Bassett Clark 1827–1891 US Thomas Cooke 1807–1868...

warship, USS Monitor, is launched at Greenpoint, Brooklyn. January 31 – Alvan Graham Clark makes the first observation of Sirius B, a white dwarf star, through...

1889, issued May 1890 Alvan Clark & Sons, instrument makers Phonograph Photophone Volta Laboratory and Bureau, Alexander Graham Bell's research laboratory...

Representative from Texas 2001–present. Cousin of Charles Allen Culberson. Alvan Cullom (1797–1877), Tennessee State Representative 1835–36, U.S. Representative...

needed] John Neal was appointed manager of Wrexham in 1968, succeeding Alvan Williams who had brought Neal to the club as his assistant.[citation needed]...

Archived from the original on March 16, 2021. Retrieved May 29, 2021. Graham, David A.; Murphy, Cullen (December 2018). "The Clinton Impeachment, As...

University (Astrophysics)); astrophysicist; mem. Spanish Academy of Engineering Alvan Wentworth Chapman 1830, botanist and physician, wrote the first comprehensive...

Devers would relieve Clark every time both met. Marshall insisted that Anvil required an experienced commander, and with Patton gone, Clark was the only one...