100-inch Hooker Telescope at Mount Wilson Observatory
E93421
The 100-inch Hooker Telescope at Mount Wilson Observatory is a historic reflecting telescope that played a pivotal role in early 20th-century astronomy, including landmark discoveries about galaxies and the expanding universe.
Aliases (3)
- 100-inch Hooker Telescope ×50
- 100-inch Hooker telescope ×1
- 100-inch Hooker telescope at Mount Wilson Observatory ×1
Statements (50)
| Predicate | Object |
|---|---|
| instanceOf |
astronomical observatory instrument
→
historical scientific instrument → reflecting telescope → |
| associatedWithDiscovery |
Hubble–Humason velocity–distance relation
→
evidence for Hubble–Lemaître law → extragalactic nature of Andromeda Galaxy → |
| builder |
Mount Wilson Observatory workshop
→
|
| completedIn |
1917
→
|
| constructionStartDate |
1908
→
|
| country |
United States of America
→
|
| diameter |
100 inches
→
2.5 meters → |
| eraOfProminence |
early 20th century
→
|
| firstLightDate |
1917
→
|
| fundedBy |
John D. Hooker
→
|
| hasDome |
rotating steel dome
→
|
| heldWorldsLargestTitleFrom |
1917
→
|
| heldWorldsLargestTitleUntil |
1948
→
|
| heritageDesignation |
National Historic Landmark (as part of Mount Wilson Observatory)
→
|
| locatedIn |
Mount Wilson Observatory
→
San Gabriel Mountains → near Pasadena, California → |
| mountType |
equatorial mount
→
|
| namedAfter |
John D. Hooker
→
|
| notableFor |
establishing that spiral nebulae are external galaxies
→
measurement of Cepheid variable stars in Andromeda → observations leading to discovery of the expansion of the universe → |
| observatoryAltitude |
approximately 1740 meters
→
approximately 5700 feet → |
| operatedBy |
Carnegie Institution of Washington
→
Carnegie Observatories → |
| opticalDesign |
Cassegrain reflector
→
|
| partOf |
Mount Wilson Observatory telescope collection
→
|
| primaryMirrorType |
glass mirror
→
|
| significance |
key instrument in establishing the scale of the universe
→
pivotal role in development of modern observational cosmology → |
| status |
historical telescope
→
still operational for limited use → |
| surpassedBy |
200-inch Hale Telescope at Palomar Observatory
→
|
| usedBy |
Edwin Hubble
→
George Ellery Hale → Milton Humason → Walter Baade → |
| usedFor |
cosmology
→
extragalactic astronomy → observational astronomy → photography of deep-sky objects → spectroscopy → stellar astronomy → |
| wasWorldsLargestTelescope |
true
→
|
Referenced by (3)
| Subject (surface form when different) | Predicate |
|---|---|
|
Walter Baade
→
|
notableObservationSite |
|
George Ellery Hale
("100-inch Hooker telescope at Mount Wilson Observatory")
→
|
notableWork |
|
Edwin Hubble
("100-inch Hooker telescope")
→
|
usedInstrument |