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searching for Atmospheric refraction 45 found (137 total)

Space telescope (793 words) [view diff] exact match in snippet view article find links to article

wavelengths of light, obstruction by clouds, and distortions due to atmospheric refraction such as twinkling. Space telescopes can also observe dim objects

Green flash (1,478 words) [view diff] exact match in snippet view article find links to article

from a fraction of a second to a couple of seconds. In addition to atmospheric refraction and lensing, another primary cause of the Green Flash may be due

Shadow bands (860 words) [view diff] exact match in snippet view article find links to article

Viewed toward the collimated light of a star, the shadows bands from atmospheric refraction pass over the eye. In 1820, Hermann Goldschmidt of Germany noted

Boulia, Queensland (1,791 words) [view diff] exact match in snippet view article find links to article

that appear at night[tone]. The lights are said to be caused by atmospheric refraction that occurs when cold air is trapped below warmer air, a phenomenon

Edward Skinner King (213 words) [view diff] exact match in snippet view article find links to article

which corrects the tracking rate of a telescope to account for atmospheric refraction. His reference work "A Manual of Celestial Photography: Principles

Ernst A. F. W. Grossmann (264 words) [view diff] exact match in snippet view article find links to article

He identified systematic errors in calculation of angles due to atmospheric refraction and introduced a correction constant. Grossman was born in Rothenburg

Gunnbjörn Ulfsson (352 words) [view diff] exact match in snippet view article find links to article

professor emeritus at the University of Manitoba and an expert in atmospheric refraction and mirages, argued that the skerries Gunnbjörn saw could be explained

Salah times (2,163 words) [view diff] exact match in snippet view article find links to article

sunset/sunrise that occurs at α = 0 {\displaystyle \alpha =0} , but atmospheric refraction makes the sun appear 50 arcminutes higher.) So T S h u r u q = T

Barometric light (1,891 words) [view diff] exact match in snippet view article find links to article

that their apparent position in the sky is affected by atmospheric refraction. Atmospheric refraction, in turn, is affected by the air's temperature and pressure

Uraniborg (3,291 words) [view diff] exact match in snippet view article find links to article

research to Tycho's. Picard also went back to Uraniborg to study atmospheric refraction, which is the bending of light due to the atmosphere.[page needed]

Lloyd's mirror (1,179 words) [view diff] exact match in snippet view article find links to article

rays from high cliffs overlooking the sea. After correcting for atmospheric refraction, these observations allowed the paths of the sources above the horizon

Charles Hugh Smiley (465 words) [view diff] exact match in snippet view article find links to article

also conducted several expeditions between 1947 and 1952 to study "atmospheric refraction at low angular altitudes." He also studied the Mayan calendar, and

Ibn Mu'adh al-Jayyani (760 words) [view diff] case mismatch in snippet view article find links to article

Authorship of the Liber de crepusculis, an Eleventh-Century Work on Atmospheric Refraction". Isis. 58 (1): 77–85. doi:10.1086/350185. Nunes, Pedro (2003).

Venus tablet of Ammisaduqa (952 words) [view diff] exact match in snippet view article find links to article

surviving tablets. Some copying corruptions are probable. Problems of atmospheric refraction were addressed by Vahe Gurzadyan in a 2003 publication. The entry

Lunar distance (navigation) (2,031 words) [view diff] exact match in snippet view article

The lunar distance is corrected for the effects of parallax and atmospheric refraction on the observation. The almanac gives lunar distances as they would

North Central Airlines Flight 458 (903 words) [view diff] exact match in snippet view article find links to article

crash on "Spatial disorientation of the captain precipitated by atmospheric refraction of either the approach lights or landing lights at a critical point

Clime (955 words) [view diff] exact match in snippet view article find links to article

modern values are provided. Ptolemy never considered the impact of atmospheric refraction on his calculation of the length of the day. If you account for

Barnaba Oriani (773 words) [view diff] exact match in snippet view article find links to article

Cassini's uniform-density model works well except near the horizon—the atmospheric refraction from the zenith to a zenith distance of 70° is not dependent on

Ptolemy (8,186 words) [view diff] exact match in snippet view article find links to article

known. Other authors have pointed out that instrument warping or atmospheric refraction may also explain some of Ptolemy's observations at a wrong time

Samuel Molyneux (678 words) [view diff] exact match in snippet view article find links to article

that passes directly overhead in London, minimizing the effects of atmospheric refraction on its apparent position when it does so. Molyneux commissioned

Langley extrapolation (969 words) [view diff] exact match in snippet view article find links to article

the Langley plot in order to account for Rayleigh scattering, and atmospheric refraction by a spherical Earth. Di Justo and Gertz compiled a handbook for

Loch Ness Monster (11,492 words) [view diff] exact match in snippet view article find links to article

(reflecting the mountains and clouds). In 1979, W. H. Lehn showed that atmospheric refraction could distort the shape and size of objects and animals, and later

Principal Triangulation of Great Britain (2,183 words) [view diff] exact match in snippet view article find links to article

subsequent triangulation. During subsequent triangulation, errors due to atmospheric refraction, deflection of plumb-bobs, temperature, and the spherical nature

Apache Point Observatory Lunar Laser-ranging Operation (4,566 words) [view diff] case mismatch in snippet view article find links to article

C. W. Jr. (1973). "Correction of Laser Range Tracking Data for Atmospheric Refraction at Elevation Angles Above 10 Degrees" (PDF). NASA Technical Report

Robert Murphy (mathematician) (777 words) [view diff] case mismatch in snippet view article

Calculations of Logarithms by Means of Algebraic Fractions (1841), and On Atmospheric Refraction (1842). De Morgan claimed "He had a true genius for mathematical

Harvard Computers (2,376 words) [view diff] exact match in snippet view article find links to article

catalogs and reducing the photographs while accounting for things like atmospheric refraction in order to render the clearest possible image. Fleming herself

Photometria (1,924 words) [view diff] exact match in snippet view article find links to article

the first known attempt to quantify pupillary light reflex. 5. Atmospheric refraction and absorption Using the laws of photometry and a great deal of

Edward Sang (5,898 words) [view diff] exact match in snippet view article find links to article

observatory, and of the declination of a star, from the consideration of atmospheric refraction, The Edinburgh New Philosophical Journal, volume 15, 1833 link The

Navigation (7,331 words) [view diff] exact match in snippet view article find links to article

and using sight reduction tables to correct for height of eye and atmospheric refraction. The height of Polaris in degrees above the horizon is the latitude

Astrophotography (5,040 words) [view diff] exact match in snippet view article find links to article

imperfect motor drives, the mechanical sag of the telescope, and atmospheric refraction. Tracking errors are corrected by keeping a selected aiming point

Geometric mean (4,871 words) [view diff] exact match in snippet view article find links to article

circle. Distance to the horizon of a sphere (ignoring the effect of atmospheric refraction when atmosphere is present) is equal to the geometric mean of the

Non-line-of-sight propagation (6,494 words) [view diff] exact match in snippet view article find links to article

layers or unusual meteorological conditions. NLOS links that exploit atmospheric refraction typically operate at frequencies in the VHF and UHF bands, including

Roan Mountain (Roan Highlands) (3,311 words) [view diff] exact match in snippet view article

the summit. The distance to the horizon (ignoring the effect of atmospheric refraction and natural obstructions) from Roan High Knob is approximately 164

Fata Morgana (mirage) (4,991 words) [view diff] exact match in snippet view article

Young, Andrew. Annotated bibliography of mirages, green flashes, atmospheric refraction, etc. Briggs, Katharine (1978). "Morgan le Fay." In Encyclopedia

Over-the-horizon radar (5,219 words) [view diff] exact match in snippet view article find links to article

range to the horizon of about 13 kilometres (8.1 mi), considering atmospheric refraction effects. If the target is above the surface, this range will be

Nicole Oresme (4,801 words) [view diff] exact match in snippet view article find links to article

the stars): a critical edition of Oresme's treatise on optics and atmospheric refraction, translated by Dan Burton, (Leiden; Boston: Brill, 2007, ISBN 9789004153707)

Terence James Elkins (2,738 words) [view diff] exact match in snippet view article find links to article

Terence J.; Papagiannis, Michael D. (1968). Studies of irregular atmospheric refraction using stationary satellites. Space Research VIII. Amsterdam: North

Optics (12,848 words) [view diff] exact match in snippet view article find links to article

illusion so confounded Ptolemy that he incorrectly attributed it to atmospheric refraction when he described it in his treatise, Optics. Another type of optical

Climate of the Arctic (8,572 words) [view diff] exact match in snippet view article find links to article

Variations in the length of the day with latitude and time of year. Atmospheric refraction makes the sun appear higher in the sky than it is geometrically

Timeline of scientific discoveries (10,194 words) [view diff] exact match in snippet view article find links to article

(ray) optics and wave theory. 11th century: Shen Kuo discovers atmospheric refraction and provides the correct explanation of rainbow phenomenon[citation

Tests of general relativity (12,446 words) [view diff] exact match in snippet view article find links to article

on Earth. Some important effects are Earth's nutation, rotation, atmospheric refraction, tectonic displacement and tidal waves. Another important effect

List of Christians in science and technology (25,332 words) [view diff] exact match in snippet view article find links to article

contributions is the discovery of the curvature of light through atmospheric refraction. Nicholas of Cusa (1401–1464): Catholic cardinal and theologian

Long distance observations (4,584 words) [view diff] exact match in snippet view article find links to article

cloak coverage from the given place called the "panorama". The atmospheric refraction analyses are available. QGIS Visibility analysis - advanced approach

Marine navigation (2,841 words) [view diff] exact match in snippet view article find links to article

is necessary to apply a series of corrections to compensate for atmospheric refraction, parallax and other errors. Once this is done, it is necessary to

Light in painting (44,128 words) [view diff] exact match in snippet view article find links to article

as "mottled light"); finally, night light can be lunar or some atmospheric refraction of sunlight, is diffuse and dim (in contemporary times there is