|
Hooker Telescope
The Mount Wilson Observatory (MWO) is an astronomical observatory in Los Angeles County, California, United States. The MWO is located on Mount Wilson, a peak in the San Gabriel Mountains near Pasadena, northeast of Los Angeles. The observatory contains two historically important telescopes: the Hooker telescope, which was the largest aperture telescope in the world from its completion in 1917 to 1949, and the 60-inch telescope which was the largest operational telescope in the world when it was completed in 1908. It also contains the Snow solar telescope completed in 1905, the solar tower completed in 1908, the solar tower completed in 1912, and the CHARA array, built by Georgia State University, which became fully operational in 2004 and was the largest optical interferometer in the world at its completion. Due to the inversion layer that traps warm air and smog over Los Angeles, Mount Wilson has steadier air than any other location in North America, making it ide ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mount Wilson (California)
Mount Wilson is at the peak of the San Gabriel Mountains, located within the San Gabriel Mountains National Monument and Angeles National Forest in Los Angeles County, California. With only minor topographical prominence the peak is not naturally noticeable from a distance, although it is easily identifiable due to the large antenna farm, number of antennas near its summit. It is a subsidiary peak of nearby San Gabriel Peak. Quartz diorite is the dominant bedrock. It is the location of the Mount Wilson Observatory, which is an important astronomical facility in Southern California with historic and aperture telescopes, and and tall Solar tower (astronomy), solar towers. The newer CHARA array, CHARA Array, run by Georgia State University, is also sited there and does important interferometric stellar research. The summit is at . While not the tallest peak in its vicinity, it is high enough in elevation that snow can sometimes interrupt astronomical activities. All of the m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Edward Falles Spence
Edward Fallis Spence (December 22, 1832 – September 19, 1892) was a banker, entrepreneur and property developer who was a member of the California legislature, a Nevada County official and the mayor of Los Angeles from 1884 to 1886. Personal Spence was born on December 22, 1832, in Enniskillen, Ireland, the son of Gabriel Spence. He was educated there by private tutors, and at the age of 20 he emigrated to America and worked on a farm near Philadelphia, Pennsylvania, for several months, then shipped to California via the Nicaragua route, arriving in San Francisco in December 1852. He spent some twenty years in Northern California and Nevada, settling in San Jose, California. After some years spent in San Jose and San Diego, he returned to Ireland in 1872, where he married his second wife, Anna Maria Spence, who was from Five Mile Town, County Tyrone, Ireland. He returned with his bride to the newly established Monrovia. Together they had four children, William Glenn, George ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
60-inch Telescope
The Mount Wilson Observatory (MWO) is an astronomical observatory in Los Angeles County, California, United States. The MWO is located on Mount Wilson, a peak in the San Gabriel Mountains near Pasadena, northeast of Los Angeles. The observatory contains two historically important telescopes: the Hooker telescope, which was the largest aperture telescope in the world from its completion in 1917 to 1949, and the 60-inch telescope which was the largest operational telescope in the world when it was completed in 1908. It also contains the Snow solar telescope completed in 1905, the solar tower completed in 1908, the solar tower completed in 1912, and the CHARA array, built by Georgia State University, which became fully operational in 2004 and was the largest optical interferometer in the world at its completion. Due to the inversion layer that traps warm air and smog over Los Angeles, Mount Wilson has steadier air than any other location in North America, making it idea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
University Of California, Los Angeles
The University of California, Los Angeles (UCLA) is a public university, public Land-grant university, land-grant research university in Los Angeles, California, United States. Its academic roots were established in 1881 as a normal school then known as the southern branch of the California State Normal School which later evolved into San Jose State University, San José State University. The branch was transferred to the University of California to become the Southern Branch of the University of California in 1919, making it the second-oldest of the ten-campus University of California system after the University of California, Berkeley. UCLA offers 337 undergraduate and graduate degree programs in a range of disciplines, enrolling about 31,600 undergraduate and 14,300 graduate and professional students annually. It received 174,914 undergraduate applications for Fall 2022, including transfers, the most of any Higher education in the United States, university in the United Stat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kitt Peak
Kitt Peak () is a mountain in the U.S. state of Arizona, and at is the highest point in the Quinlan Mountains. It is the location of the Kitt Peak National Observatory. The radio telescope at the observatory is one of ten dishes comprising the Very Long Baseline Array radio telescope. The peak was named in English by county surveyor George J. Roskruge for his sister, Phillippa, who was the wife of William F. Kitt. On his 1893 Pima County Survey map, Roskruge spelled the name 'Kits'. At the request of the wife of George F. Kitt, the spelling was changed by decision in 1930. Kitt Peak is the second-highest peak on the Tohono O'odham Indian Reservation, and as such is the second-most sacred after Baboquivari Peak The Baboquivari Peak Wilderness or La Bestia is a National Wilderness Preservation System, wilderness area in the U.S. state of Arizona. It is located in the Baboquivari Mountains southwest of Tucson, Arizona. It is administered by the Bureau o .... Near the su ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
McMath–Pierce Solar Telescope
McMath–Pierce solar telescope is a 1.6 m F-number, f/54 reflecting telescope, reflecting solar telescope at Kitt Peak National Observatory in Arizona, United States. Built in 1962, the building was designed by American architect Myron Goldsmith and Bangladeshi Americans, Bangladeshi-American structural engineer Fazlur Rahman Khan. It was the largest solar telescope and the largest unobstructed aperture optical telescope in the world. It is named after the astronomers Robert Raynolds McMath and Keith Pierce. It was originally called the McMath Solar Telescope, and then later renamed the McMath-Pierce Solar Telescope in 1992. Although it is designed for observation of the Sun, it can also be used to view bright objects at night. In 2018, the telescope received a 4.5 million USD grant for an enhanced visitor center and other programs, and to overall revitalize the national icon. Construction The telescope is a triple instrument. In addition to the primary 1.61 m mirror fed by t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sunspot Drawing
Sunspot drawing or sunspot sketching is the act of drawing sunspots. Sunspots are darker spots on the Sun's photosphere. Their prediction is very important for radio communication because they are strongly associated with solar activity, which can seriously damage radio equipment. History Sunspots were probably first drawn by an English monk John of Worcester on 8 December 1128. There are records of observing sunspots from 28 BC, but that is the first known drawing of sunspots, almost 500 years before the telescope. His drawing seems to come around solar maximum. Five days later, the Korean astronomer saw the Aurora borealis, northern lights above his country, so this is also the first prediction of coronal mass ejection. In 1612, Galileo Galilei was writing letters on sunspots to Mark Welser. They were published in 1613. In his telescope, he saw some darker spots on Sun's surface. It seems like he was observing the Sun and drawing sunspots without any filter, which is very hard ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zeeman Splitting
The Zeeman effect () is the splitting of a spectral line into several components in the presence of a static magnetic field. It is caused by the interaction of the magnetic field with the magnetic moment of the atomic electron associated with its orbital motion and spin; this interaction shifts some orbital energies more than others, resulting in the split spectrum. The effect is named after the Dutch physicist Pieter Zeeman, who discovered it in 1896 and received a Nobel Prize in Physics for this discovery. It is analogous to the Stark effect, the splitting of a spectral line into several components in the presence of an electric field. Also, similar to the Stark effect, transitions between different components have, in general, different intensities, with some being entirely forbidden (in the dipole approximation), as governed by the selection rules. Since the distance between the Zeeman sub-levels is a function of magnetic field strength, this effect can be used to measure ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The Top Of The 150-Foot Solar Tower Observatory On Mt
''The'' is a grammatical article in English, denoting nouns that are already or about to be mentioned, under discussion, implied or otherwise presumed familiar to listeners, readers, or speakers. It is the definite article in English. ''The'' is the most frequently used word in the English language; studies and analyses of texts have found it to account for seven percent of all printed English-language words. It is derived from gendered articles in Old English which combined in Middle English and now has a single form used with nouns of any gender. The word can be used with both singular and plural nouns, and with a noun that starts with any letter. This is different from many other languages, which have different forms of the definite article for different genders or numbers. Pronunciation In most dialects, "the" is pronounced as (with the voiced dental fricative followed by a schwa) when followed by a consonant sound, and as (homophone of the archaic pronoun ''thee' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kenyon College
Kenyon College ( ) is a Private university, private Liberal arts colleges in the United States, liberal arts college in Gambier, Ohio, United States. It was founded in 1824 by Episcopal Bishop Philander Chase. It is the oldest private institution of higher education in the state of Ohio and enrolls approximately 1,800 undergraduate students. Students can choose from over 50 majors, minors, and concentrations, including self-designed majors. The college is located on a hill overlooking the Kokosing River and neighbors Mount Vernon, Ohio. Its campus is set in rural surroundings that host seven ecosystems. There are more than 120 student clubs and organizations. Kenyon athletes are called Owls and compete in the NCAA Division III North Coast Athletic Conference. Kenyon College is Educational accreditation, accredited by the Higher Learning Commission. History Founding After becoming the first Episcopal Episcopal Diocese of Ohio, Bishop of Ohio in 1818, Philander Chase found ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Solar Telescope
A solar telescope or a solar observatory is a special-purpose telescope used to observe the Sun. Solar telescopes usually detect light with wavelengths in, or not far outside, the visible spectrum. Obsolete names for Sun telescopes include heliograph and photoheliograph. Professional Solar telescopes need optics large enough to achieve the best possible Diffraction#Diffraction limit of telescopes, diffraction limit but less so for the associated light-collecting power of other astronomical telescopes. However, recently newer narrower Optical filter, filters and higher framerates have also driven solar telescopes towards photon-starved operations. Both the Daniel K. Inouye Solar Telescope as well as the proposed European Solar Telescope (EST) have larger apertures not only to increase the resolution, but also to increase the light-collecting power. Because solar telescopes operate during the day, seeing is generally worse than for night-time telescopes, because the ground around ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The 150-Foot Solar Tower Observatory On Mt
''The'' is a grammatical article in English, denoting nouns that are already or about to be mentioned, under discussion, implied or otherwise presumed familiar to listeners, readers, or speakers. It is the definite article in English. ''The'' is the most frequently used word in the English language; studies and analyses of texts have found it to account for seven percent of all printed English-language words. It is derived from gendered articles in Old English which combined in Middle English and now has a single form used with nouns of any gender. The word can be used with both singular and plural nouns, and with a noun that starts with any letter. This is different from many other languages, which have different forms of the definite article for different genders or numbers. Pronunciation In most dialects, "the" is pronounced as (with the voiced dental fricative followed by a schwa) when followed by a consonant sound, and as (homophone of the archaic pronoun ''thee' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
