Examples of using Angular size in English and their translations into Vietnamese
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They're the same angular size on the sky.”.
The angular size of the ripples in the CMB is thought to be connected to the composition of the Universe.
Both the Sun and the Moon have an angular size of about half a degree.
The maximum angular size of the galaxy in the optical band is 11′.1× 4′.
As an object gets closer to the eye, its angular size becomes larger.
At that distance, the angular size of the cluster halo corresponds to a radius of about 23 ly.
About 40″ to the southeast is a third galaxy with an angular size of 0′.35× 0′.35.
For example, the mean angular size of the Moon's disk as viewed from Earth's surface is about 0.52°.
The Moon and Sun must then be 20¼ and 387 Earth-radii away from usin order to subtend an angular size of 2º.
The maximum angular size of the galaxy in the optical band is 11′.1× 4′.6, and it is inclined 75° to the line of sight.[4].
The angular separation of the two stars is slightly greater than the angular size of Saturn(16- 20″).
Based on how quantities like luminosity or angular size change with distance, we can infer the expansion history of the Universe.
The highly disrupted galaxy to the northwest is actually two galaxies in the advanced stages of merger,and has an angular size of 0′.8× 0′.6.
The telescopic frame is about the angular size of a Full Moon and so spans about 5 light-years at the dark cloud's estimated distance.
Functioning as one Earth-sized telescope,the network can resolve objects just one-ten thousandth the angular size of what Hubble can see.
XDF view field compared to the angular size of the Moon- several thousand galaxies, each consisting of billions of stars, are in this small view.
The Moon is just far enough away to have, when seen from Earth,very nearly the same apparent angular size as the Sun(the Sun is 400 times larger, but the Moon is 400 times closer).
I can measure the angular size of an object from the video, but I don't know how many pixels in the frame there are for each degree of an angle.
It covers an area 2.5 arcminutes across, about one 24-millionth of the whole sky,which is equivalent in angular size to a 65 mm tennis ball at a distance of 100 metres.
Using measurements of the time delay and angular size of the nebula, the known speed of light allows astronomers to geometrically determine the distance to RS Pup to be 6,500 light-years, with a remarkably small error of plus or minus 90 light-years.
That is because the point of the cone is the furthest point at which the earth can block all the sunlight,and the ratio of that distance to the diameter is determined by the angular size of the sun being blocked.
Aristarchus pointed out that the Moon andSun have nearly equal apparent angular sizes and therefore their diameters must be in proportion to their distances from Earth.
It has an apparent magnitude of 6.9, an angular size of 10 arcminutes and is visible using a small telescope.[1] This cluster is about 3.855 kpc from the Solar System and has an age of about 10 million years.[2][3] Observationally, this cluster is along the line of sight of two groups of B-type supergiant stars.
The gaseous shell RCW 86 is probably the supernova remnant of this event andhas a relatively large angular size of roughly 45 arc minutes(larger than the apparentsize of the full moon, which varies from 29 to 34 arc minutes).
The angular size of Zeta Puppis has been measured interferometrically to be 0.41 mas,[15] and photometrically to be 0.38 mas.[16] A known distance would directly give the actual size of the star, which would confine other characters such as luminosity and mass.
It has an angular distance of 2.5 arcminutes and is approximately 2.2± 0.2 kpc(~7,200 light years) from the Sun inside the Local spiral arm.[3]At that distance, the angular size of the cluster corresponds to a diameter of about 10.4 light years.
Even distant Callisto is over 50% larger, and Io is nearly six times as large.This disparity in angular size makes the moons' shadows on Jupiter more defined than the lunar shadow on Earth during a total solar eclipse, as it narrows the penumbra for a given distance.[1].
Considering the launch of Kosmos-955 as the possible cause, Gindilis outlined several obstacles, such as the westward motion of the unidentified object(while Kosmos-955 was launched to the north-east),the observed angular sizes of it combined with the expected distance and prolonged hanging over Leppäsyrjä.
The discovery was the result of a new technique called Very Long Baseline Interferometry,which allowed astronomers to set limits to the angular size of components and to determine positions to better than milli-arcseconds, and in particular to determine the change in positions on the sky, called proper motions, in a timespan of typically years.
By convention, for magnifying glasses and optical microscopes, where the size of the object is a linear dimension and the apparent size is an angle,the magnification is the ratio between the apparent(angular) size as seen in the eyepiece and the angular size of the object when placed at the conventional closest distance of distinct vision: 25 cm from the eye.