However, despite the insight of many of his observations, his own conclusions are open to suspicion because of his failure to employ at all times the correct research methods.

In the relatively short time since these early observations, Venus has been observed at additional wave lengths in the range from 0.8 to 10.2 cm, and Jupiter has been observed over the wave-length range from 3.03 to 68 Aj.

Very recently, observations have been made at 8-mm wave length with a reflector 22 meters in diameter with a resultant beam width of only about 2' ( Amenitskii, Noskova, and Salomonovich, 1960 ).

Such high-resolution observations as these are needed at several wave lengths in order that the radio emission of the moon can be properly interpreted.

The observations of Mayer, McCullough, and Sloanaker at 3.15 cm and of Sloanaker at 10.3 cm have not previously been published and will be briefly described.

Qualitative observations were made and high-speed motion pictures were taken to study flow phenomena in the arc at various mass flow velocities.

When the experiment includes observations at all combinations of

For stars, in the absence of extensive observations at many wavelengths, it usually must be computed assuming an effective temperature.

Robert Hooke, in 1674, published his observations of γ Draconis, a star of magnitude 2 < sup > m </ sup > which passes practically overhead at the latitude of London, and whose observations are therefore free from the complex corrections due to astronomical refraction, and concluded that this star was 23 ″ more northerly in July than in October.

On August 19, 1727, Bradley then embarked upon a further series of observations using a telescope of his own erected at the Rectory, Wanstead.

While the scientific community was once divided between supporters of the Big Bang and those of alternative cosmological models, most scientists became convinced that some version of the Big Bang scenario best fit observations after the discovery of the cosmic microwave background radiation in 1964, and especially when its spectrum ( i. e., the amount of radiation measured at each wavelength ) was found to match that of thermal radiation from a black body.

Much of the current work in cosmology includes understanding how galaxies form in the context of the Big Bang, understanding the physics of the Universe at earlier and earlier times, and reconciling observations with the basic theory.

However neither of those observations became accepted by British economists at the time.

While conducting a program of observations designed to uncover near-Earth objects, the Shoemakers and Levy discovered Comet Shoemaker – Levy 9 on the night of March 24, 1993 in a photograph taken with the Schmidt telescope at the Palomar Observatory in California.

Two other satellites made observations at the time of the impact: the Ulysses spacecraft, primarily designed for solar observations, was pointed towards Jupiter from its location 2. 6 AU away, and the distant Voyager 2 probe, some 44 AU from Jupiter and on its way out of the Solar System following its encounter with Neptune in 1989, was programmed to look for radio emission in the 1 – 390 kHz range.

Radio observations revealed a sharp increase in continuum emission at a wavelength of 21 cm after the largest impacts, which peaked at 120 % of the normal emission from the planet.

According to a group of astronomers at the University of Toronto and elsewhere, the observations of this supernova are best explained by assuming that it arose from a white dwarf which grew to twice the mass of the Sun before exploding.

Low surface brightness dwarf galaxies are important sources of information for studying dark matter, as they have an uncommonly low ratio of visible matter to dark matter, and have few bright stars at the center which would otherwise impair observations of the rotation curve of outlying stars.

Partly because the observations were at the very limits of instrumental capabilities at the time, astronomers remained skeptical for several years about this and other similar observations.

Radio observations of the moon have been made over the range of wave lengths from 4.3 mm to 75 cm, and the results are summarized in Table 1.

Through the observations he made in the following year, Richer determined that the clock was 2½ minutes per day slower than at Paris, or equivalently the length of a pendulum with a swing of one second there was 1¼ Paris lines, or 2. 6 mm, shorter than at Paris.

His main interest has been solar physics research, and he was instigator of the first multi-observatory observation of coronal mass ejections, joint leader at the 81. 5 MHz radio array at Cambridge, principal scientists for the first mm observations of the Sun and principal investigator of the Coronal Diagnostic Spectrometer on SOHO.

Any waves present on the lake are also far smaller than those that would be present on a sizable body of liquid water on Earth ; their estimated maximum height was less than 3 mm during observations of a radar specular reflection during Cassinis T49 flyover of July 2009.

That being said, very few other novels and feature films have dared to explore the psychological implications of the September 11th attacks on children and their families in a way that attempts -- even if not wholly successful, to reflect accurately the observations of mental health professionals such as psychologist Susan Coates and psychiatrist Daniel Schechter

A concentration distribution has been derived from radar observations sensitive to the fifteenth magnitude ( Manning and Eshleman, 1959 ).

Jung continued to publish books until the end of his life, including Flying Saucers: A Modern Myth of Things Seen in the Skies ( 1959 ), which analyzed the archetypal meaning and possible psychological significance of the reported observations of UFOs.

According hydrological observations during 52 years, the minimum average monthly discharge was equal to 27. 8 m³ / s in March 1969 — it was exceptionally dry winter — and the maximum value corresponds to June 1959 and is equal to 31, 500 m³ / s.

In December 1959, he made airlifted geophysical observations along the 88th meridian west, including work near these mountains.

3434 Hurless is an asteroid that was named for the late amateur astronomer Carolyn Hurless, an American Association of Variable Star Observers merit award winner, who made 79, 000 observations from 1959 until her death on February 13, 1987.

ARDC took up the spacetrack mission in late 1959 and in April 1960 set up the Interim National Space Surveillance Control Center at Hanscom Field, Massachusetts, to coordinate observations and maintain satellite data.

Carolyn Hurless ( – February 13, 1987 ) was a United States astronomer and an American Association of Variable Star Observers merit award winner, she made 79, 000 observations 1959 until her death in 1987.

Gago Coutinho ( 1869 – 1959 ), officer of the Portuguese Navy, navigator and historian, headed a geodesic mission to São Tomé between 1915 and 1918 when marks were place as a basis for a geodetic network in the archipelago, and after that observations for triangulation, precise base measurement and astronomical observations were made.

Apus was one of twelve constellations created by Petrus Plancius from the observations of Pieter Dirkszoon Keyser and Frederick de Houtman and it first appeared on a 35 cm diameter celestial globe published in 1597 ( or 1598 ) in Amsterdam by Plancius with Jodocus Hondius.

Dorado was one of twelve constellations named by Petrus Plancius from the observations of Pieter Dirkszoon Keyser and Frederick de Houtman, and it first appeared on a 35-cm diameter celestial globe published in 1597 ( or 1598 ) in Amsterdam by Plancius with Jodocus Hondius.

Hydrus was one of twelve constellations created by Petrus Plancius from the observations of Pieter Dirkszoon Keyser and Frederick de Houtman and it first appeared on a 35-cm diameter celestial globe published in 1597 ( or 1598 ) in Amsterdam by Plancius with Jodocus Hondius.

New X-ray observations by the Chandra X-ray Observatory show three distinct structures: an outer, horseshoe-shaped ring about 2 light years in diameter, a hot inner core about 3 light-months in diameter, and a hot central source less than 1 light-month in diameter which may contain the superstar that drives the whole show.

The interferometer also includes a set of four 1. 8 meter diameter movable telescopes dedicated to interferometric observations.

Objections about the caribou herds were countered by observations of Davidson Ditch, a water pipeline with the same diameter of the Trans-Alaska Pipeline, which caribou were able to jump over.

Volans was one of twelve constellations created by Petrus Plancius from the observations of Pieter Dirkszoon Keyser and Frederick de Houtman and it first appeared on a 35-cm diameter celestial globe published in 1597 ( or 1598 ) in Amsterdam by Plancius with Jodocus Hondius.

The constellation was one of twelve created by Petrus Plancius from the observations of Pieter Dirkszoon Keyser and Frederick de Houtman and it first appeared on a 35-cm diameter celestial globe published in 1597 ( or 1598 ) in Amsterdam by Plancius with Jodocus Hondius.

With one of these: an objective diameter of and a focal length, he discovered the brightest of Saturn's satellites ( Titan ) in 1655 ; in 1659, he published his " Systema Saturnium " which, for the first time, gave a true explanation of Saturn's ring — founded on observations made with the same instrument.

It is one of twelve constellations created by Petrus Plancius from the observations of Pieter Dirkszoon Keyser and Frederick de Houtman and it first appeared on a 35-cm diameter celestial globe published in 1597 ( or 1598 ) in Amsterdam by Plancius with Jodocus Hondius.

Astronomers often talk about " good " nights with a low average seeing disc diameter, and " bad " nights where the seeing diameter was so high that all observations were worthless.

For typical seeing, the practical resolution limits are at mirror sizes well within existing mechanical limits, at a mirror diameter equal to the astronomical seeing parameter r < sub > 0 </ sub >-about 20 cm in diameter for visible observations under good conditions.

Western tanager perched on stems less than 1 inch (< 2. 5 cm ) in diameter in 96. 9 % of observations.

Western tanagers foraged on larger trees, with nearly 80 % of observations on trees with a trunk diameter of more than about 8 inches ( 20. 0 cm ) and over 80 % of observations occurring on trees 33 feet ( 10 m ) or taller.

He created the Abbe number, a measure of any transparent material's variation of refractive index with wavelength and Abbe's criterion, which tests the hypothesis that a systematic trend exists in a set of observations ( in terms of resolving power this criterion stipulates that an angular separation cannot be less than the ratio of the wavelength to the aperture diameter, see angular resolution ).

Before this, IRAS observations had suggested that the asteroid was 120 km in diameter.

The 1966-72 Orbiting Astronomical Observatory missions demonstrated the important role space-based observations could play in astronomy, and 1968 saw the development by NASA of firm plans for a space-based reflecting telescope with a mirror 3 m in diameter, known provisionally as the Large Orbiting Telescope or Large Space Telescope ( LST ), with a launch slated for 1979.

Radar observations combined with lightcurve-based shape models, lead to a diameter estimate of 110 ± 15 km.