100-inch Hooker telescope
E553793
The 100-inch Hooker telescope is a historic reflecting telescope at Mount Wilson Observatory, famous for Edwin Hubble’s observations that revealed the expanding universe and established galaxies beyond the Milky Way.
Observed surface forms (1)
| Surface form | Occurrences |
|---|---|
| Hooker Telescope | 2 |
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
astronomical observatory instrument
ⓘ
historical scientific instrument ⓘ reflecting telescope ⓘ |
| associatedWithDiscovery |
cosmological expansion (Hubble–Lemaître law)
ⓘ
galaxies beyond the Milky Way ⓘ |
| completedIn | 1917 ⓘ |
| constructionStarted | 1908 ⓘ |
| eraOfMajorUse | early 20th century ⓘ |
| firstLight | 1917 ⓘ |
| fundedBy |
Carnegie Institution of Washington
NERFINISHED
ⓘ
John Daggett Hooker NERFINISHED ⓘ |
| hasAperture |
100 inches
ⓘ
2.5 meters ⓘ |
| hasCoordinateSystem | equatorial coordinate system ⓘ |
| hasDome | Mount Wilson 100-inch dome NERFINISHED ⓘ |
| hasFocalLength | approximately 15 meters ⓘ |
| heritageDesignation | National Historic Landmark (as part of Mount Wilson Observatory site) NERFINISHED ⓘ |
| locatedIn |
Los Angeles County
ⓘ
surface form:
Los Angeles County, California
Mount Wilson Observatory NERFINISHED ⓘ Mount Wilson, California NERFINISHED ⓘ San Gabriel Mountains NERFINISHED ⓘ United States of America ⓘ
surface form:
United States
|
| mountType | equatorial mount ⓘ |
| namedAfter | John Daggett Hooker NERFINISHED ⓘ |
| notableFor |
evidence that spiral nebulae are external galaxies
ⓘ
measurements of Cepheid variable stars in spiral nebulae ⓘ observations leading to discovery of the expanding universe ⓘ observations of galaxies beyond the Milky Way ⓘ |
| operatedBy |
Carnegie Institution for Science
NERFINISHED
ⓘ
Mount Wilson Observatory NERFINISHED ⓘ |
| opticalDesign | classical Cassegrain ⓘ |
| primaryMirrorDiameter | 100 inches ⓘ |
| primaryMirrorMaterial | glass ⓘ |
| replacedAsLargestBy | 200-inch Hale telescope NERFINISHED ⓘ |
| status |
historical research telescope
ⓘ
partially retired from frontline research ⓘ |
| telescopeType | Cassegrain reflector ⓘ |
| usedBy |
Edwin Hubble
NERFINISHED
ⓘ
George Ellery Hale NERFINISHED ⓘ Milton Humason NERFINISHED ⓘ Walter Baade NERFINISHED ⓘ |
| usedFor |
cosmology
ⓘ
extragalactic astronomy ⓘ photography ⓘ spectroscopy ⓘ stellar astronomy ⓘ |
| usedInPublication |
Edwin Hubble’s 1923–1924 papers on Cepheids in Andromeda
NERFINISHED
ⓘ
Edwin Hubble’s 1929 paper on the relation between distance and radial velocity among extra-galactic nebulae ⓘ |
| wasLargestTelescopeInWorld | 1917–1949 ⓘ |
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Hooker Telescope
this entity surface form:
Hooker Telescope