* A 60-inch reflecting telescope is located in the Oscar Mayer Building.

* 60-inch Hale, a telescope at Mount Wilson Observatory in California

In 1908 a 60-inch ( 1524 mm ) telescope was installed at the summit, and in 1910 the tall Solar Tower was erected.

A 60-inch gear, the largest practicable size for a high-wheeler, is nowadays a middle gear of a utility bicycle, while top gears on many exceed 100 inches.

They used a 60-inch cyclotron at the University of California, Berkeley.

They used the 60-inch cyclotron at the University of California, Berkeley.

This target was irradiated with 35 MeV alpha particles for 6 hours in the 60-inch cyclotron at the Lawrence Radiation Laboratory, University of California, Berkeley.

In 1939, Oliphant also visited Berkeley, California, where he met Ernest Lawrence, who gave him a complete set of specifications for his 60-inch cyclotron.

A high-legged buffet provides easy-to-reach serving, a cocktail table has small snack tables tucked under each end, recessed arched panels decorate a 60-inch long chest.

The 60-inch cyclotron at the Lawrence Radiation Laboratory, University of California, Berkeley, in August 1939.

The Concept Design 60-inch was not shown in public after 1998.

Interest in the reduced standard increased when The Wall Street Journal abandoned its iconic 60-inch web ( 15 inch page ) format ( metric: 152. 4 cm, 38. 1 cm page ) in favor of the new 48 " newspaper industry standard ( metric: 121. 92 cm ) starting on January 2, 2007.

In addition, Corregidor had 13 anti-aircraft artillery batteries with 76 guns ( 28 3-inch and 48. 50-caliber ) and 10 60-inch Sperry searchlights.

Image of a 60-inch cyclotron, circa 1939, showing an external beam of accelerated ions ( perhaps protons or deuterons ) ionizing the surrounding air and causing a blue glow.

Such performance is a great tribute to American scientists and engineers, who in the past five years have had to telescope time and technology to develop these long-range ballistic missiles, where America had none before.

The image is the combination of the 2. 2-metre MPG / ESO telescope of the La Silla Observatory in Chile and a 0. 4-meter amateur telescope.

Commercial telescopes are available new and used, but in some places it is also common for amateur astronomers to build ( or commission the building of ) their own custom telescope.

Star hopping is a method often used by amateur astronomers with low-tech equipment such as binoculars or a manually driven telescope.

Rather, the object is chosen from the database and arrow markers appear in the display which indicate the direction to move the telescope.

The telescope is moved until the distance value reaches zero.

With the development of fast Internet in the last part of the 20th century along with advances in computer controlled telescope mounts and CCD cameras ' Remote Telescope ' astronomy is now a viable means for amateur astronomers not aligned with major telescope facilities to partake in research and deep sky imaging.

The digital data collected by the telescope is then transmitted and displayed to the user by means of the Internet.

An example of a digital remote telescope operation for public use via the Internet is the The Bareket Observatory.

* John Dobson ( 1915 ), whose name is associated with the Dobsonian telescope, a simplified design for Newtonian reflecting telescopes.

He is considered one of " the big three behind the amateur telescope making movement in America ".

* 1977 – The Big Ear, a radio telescope operated by Ohio State University as part of the SETI project, receives a radio signal from deep space ; the event is named the " Wow!

When the telescope is at position E it must be oriented toward spot S ′ so that the star light enters the telescope at spot S ′.

Since the telescope has been adjusted by the angle SES ′, the star's apparent position is hence displaced by the same angle.

For the simple case where the direction of the light beam along the line SE is perpendicular to the motion of the observer then only light emitted at an angle equal to the arc cosine of the ratio of the observer's speed to the speed of light will reach the telescope.

Antares B can be observed with a small telescope for a few seconds during lunar occultations while Antares itself is hidden by the Moon ; it was discovered by Johann Tobias Bürg during one such occultation on April 13, 1819.

It is 670 light-years from Earth and the components are distinguishable in a small telescope.

They are fast compared to other objects in the sky, but their movement is usually subtle in the eyepiece of a telescope.

The two close components are divisible in a small amateur telescope and the wide component is divisible in a pair of binoculars.

It is so faint that it has been often mistaken for a nebula in a telescope.

Though the tertiary component is divisible in binoculars, the primary and secondary currently require a medium-sized amateur telescope to split, as they will through the year 2020.

61 Cygni is a binary star divisible in large binoculars or a small amateur telescope.

Previously, these had only been used to convey the idea of what someone in the film was seeing through a telescope ( or other aperture ), and this was indicated by having a black circular mask or vignette within the film frame.

* Astronomical filter, a telescope accessory used to enhance the details of celestial objects.

Radio telescope s are often used by SETI projects

On March 19, he sent the telescope he had used to first view Jupiter ’ s moons to the Grand Duke, along with an official copy of Sidereus Nuncius ( The Starry Messenger ) that, following the secretary's advice, named the four moons the Medician Stars.

Actual proof of the Milky Way consisting of many stars came in 1610 when the Italian astronomer Galileo Galilei used a telescope to study the Milky Way and discovered that it is composed of a huge number of faint stars.

The spectrometer of NIMS used a grating to disperse the light collected by the telescope.

* 1888 – The refracting telescope at the Lick Observatory, measuring 91 cm in diameter, is used for the first time.

Kitt Peak is famous for hosting the first telescope ( an old 91 cm reflector ) used to search for near-Earth asteroids, and calculating the probability of an impact with planet Earth.

* Lanthanum ( III ) oxide ( La < sub > 2 </ sub > O < sub > 3 </ sub >) improves the alkali resistance of glass, and is used in making special optical glasses, such as infrared-absorbing glass, as well as camera and telescope lenses, because of the high refractive index and low dispersion of rare-earth glasses.

* Telescope mount, a device used to support a telescope

This was changed to vacuum deposited aluminum on glass, used on the 200-inch Hale telescope.

The largest optical telescope in the world as of 2009 to use a non-segmented single-mirror as its primary mirror is the 8. 2 m ( 8. 7 yards ) Subaru telescope of the National Astronomical Observatory of Japan, located in Mauna Kea Observatory on Hawaii since 1997 ; however, this is not the largest diameter single mirror in a telescope, the U. S ./ German / Italian Large Binocular Telescope has two 8. 4 m ( 9. 2 yards ) mirrors ( which can be used together for interferometric mode ).

From 1914 to 1916, a telescope on loan from Sproul Observatory was used to search for Planet X.

Silver is seldom used as the reflector in telescope mirrors where aluminum is generally preferred being cheaper and less susceptible to tarnishing and corrosion Silver is the reflective coating of choice for solar reflectors.

Drake used a radio telescope 26 meters in diameter at Green Bank, West Virginia, to examine the stars Tau Ceti and Epsilon Eridani near the 1. 420 gigahertz marker frequency, a region of the radio spectrum dubbed the " water hole " due to its proximity to the hydrogen and hydroxyl radical spectral lines.

In the SETI context, the name has been used for radio telescopes in fiction ( Arthur C. Clarke, " Imperial Earth "; Carl Sagan, " Contact "), was the name initially used for the NASA study ultimately known as " Cyclops ," and is the name given to an omnidirectional radio telescope design being developed at the Ohio State University.

A space observatory is any instrument ( such as a telescope ) in outer space which is used for observation of distant planets, galaxies, and other outer space objects.

Herschel discovered that unfilled telescope apertures can be used to obtain high angular resolution, something which became the essential basis for interferometric imaging in astronomy ( in particular Aperture Masking Interferometry and hypertelescopes ).

* January 3 – The 91-centimeter telescope is first used at Lick Observatory.

The first ever micrometric screw was invented by William Gascoigne in the 17th century, as an enhancement of the vernier ; it was used in a telescope to measure angular distances between stars and the relative sizes of celestial objects.