|
Seagrave Memorial Observatory
Seagrave Memorial Observatory is an astronomical observatory located in North Scituate, Rhode Island. It is named after astronomer Frank Evens Seagrave and is wholly owned and operated by Skyscrapers, Inc. The main instrument is an 8¼-inch Alvan Clark refracting telescope which was given to Frank Evens Seagrave for his 16th birthday in 1876, however the telescope took two years to build, so he did not receive it until 1878. The telescope and Seagrave Observatory (as the private observatory was then known) were originally at 119 Benefit Street in Providence. At the time it was the third largest telescope in New England. The telescope was moved to North Scituate in October 1914 when the construction of the current observatory was completed. The observatory was acquired by the Skycrapers in 1936 after the death of Seagrave. See also * List of astronomical observatories This is a list of astronomical observatories ordered by name, along with initial dates of operation (where an accu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
North Scituate, Rhode Island
North Scituate is a village in the town of Scituate, Rhode Island. Since 1967, the village has been home to the Scituate Art Festival. Much of the community is included in a on the Danielson Pike and West Greenville Road. The district contains many nineteenth-century buildings, including the Old Congregational Church (1834) and |
Astronomical Observatory
An observatory is a location used for observing terrestrial, marine, or celestial events. Astronomy, climatology/meteorology, geophysical, oceanography and volcanology are examples of disciplines for which observatories have been constructed. Historically, observatories were as simple as containing an astronomical sextant (for measuring the distance between stars) or Stonehenge (which has some alignments on astronomical phenomena). Astronomical observatories Astronomical observatories are mainly divided into four categories: space-based, airborne, ground-based, and underground-based. Ground-based observatories Ground-based observatories, located on the surface of Earth, are used to make observations in the radio and visible light portions of the electromagnetic spectrum. Most optical telescopes are housed within a dome or similar structure, to protect the delicate instruments from the elements. Telescope domes have a slit or other opening in the roof that can be opened during ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alvan Clark
Alvan Clark (March 8, 1804 – August 19, 1887), born in Ashfield, Massachusetts, the descendant of a Cape Cod whaling family of English ancestry, was an American astronomer and telescope maker. Biography He started as a portrait painter and engraver (c.1830s-1850s), and at the age of 40 became involved in telescope making. Using glass blanks made by Chance Brothers of Birmingham and Feil-Mantois of Paris, his firm '' Alvan Clark & Sons'' ground lenses for refracting telescopes. Their lenses included the largest in the world at the time: the at Dearborn Observatory at the Old University of Chicago (the lens was originally intended for Ole Miss), the two telescopes at the United States Naval Observatory and McCormick Observatory, the at Pulkovo Observatory (destroyed in the Siege of Leningrad; only the lens survives), the telescope at Lick Observatory (still third-largest) and later the at Yerkes Observatory, which remains the largest successful refracting telescope in the wor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Refracting Telescope
A refracting telescope (also called a refractor) is a type of optical telescope that uses a lens (optics), lens as its objective (optics), objective to form an image (also referred to a dioptrics, dioptric telescope). The refracting telescope design was originally used in spyglasses and astronomy, astronomical telescopes but is also used for long-focus lens, long-focus camera lenses. Although large refracting telescopes were very popular in the second half of the 19th century, for most research purposes, the refracting telescope has been superseded by the reflecting telescope, which allows larger apertures. A refractor's magnification is calculated by dividing the focal length of the objective lens by that of the eyepiece. Refracting telescopes typically have a lens at the front, then a optical train, long tube, then an eyepiece or instrumentation at the rear, where the telescope view comes to focus. Originally, telescopes had an objective of one element, but a century later, tw ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Astronomical Observatories
This is a list of astronomical observatories ordered by name, along with initial dates of operation (where an accurate date is available) and location. The list also includes a final year of operation for many observatories that are no longer in operation. While other sciences, such as volcanology and meteorology, also use facilities called observatories for research and observations, this list is limited to observatories that are used to observe celestial objects. Astronomical observatories are mainly divided into four categories: space-based, airborne, ground-based, and underground-based. Many modern telescopes and observatories are located in space to observe astronomical objects in wavelengths of the electromagnetic spectrum that cannot penetrate the Earth's atmosphere (such as ultraviolet radiation, X-rays, and gamma rays) and are thus impossible to observe using ground-based telescopes. Being above the atmosphere, these space observatories can also avoid the effects of atmo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Astronomical Observatories In Rhode Island
Astronomy () is a natural science that studies celestial objects and phenomena. It uses mathematics, physics, and chemistry in order to explain their origin and evolution. Objects of interest include planets, moons, stars, nebulae, galaxies, and comets. Relevant phenomena include supernova explosions, gamma ray bursts, quasars, blazars, pulsars, and cosmic microwave background radiation. More generally, astronomy studies everything that originates beyond Earth's atmosphere. Cosmology is a branch of astronomy that studies the universe as a whole. Astronomy is one of the oldest natural sciences. The early civilizations in recorded history made methodical observations of the night sky. These include the Babylonians, Greeks, Indians, Egyptians, Chinese, Maya, and many ancient indigenous peoples of the Americas. In the past, astronomy included disciplines as diverse as astrometry, celestial navigation, observational astronomy, and the making of calendars. Nowadays, p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
