Examples of using Proper motion in English and their translations into Vietnamese
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Kirkpatrick and colleagues found a few thousand new high proper motion objects under the AllWISE program of study of images, taken by Wide-field Infrared Survey Explorer(WISE).
its value at an arbitrary epoch, together with its actual motion over time(known as proper motion).
In 2005, using observations of two water masers on opposite sides of Triangulum via the VLBA, researchers were, for the first time, able to estimate the angular rotation and proper motion of Triangulum.
in 1842 Friedrich Wilhelm Argelander noted that Groombridge 1830 had an even larger proper motion, and 61 Cygni became the second highest known.
several catalogues dating back to 1750, and discovered that it possessed a measureable proper motion.
of 57.3 light years.[2] It has a relatively large proper motion of 0.558 arc seconds per year across the sky.[3].
The star system has a relatively high proper motion of 2.9 arc seconds per year,[1]
He noticed the high proper motion of this dim 11th magnitude star in his second-epoch plates that were part of an astronomical survey started by E. E. Barnard,
pair is 0.15 arcseconds.[1] This system is a proper motion member of the Upper Scorpius sub-group in the Scorpius-Centaurus OB association, the nearest such
WISE 0855- 0714's proper motion across the sky is also directly observed over time, causing it to stand out in the observations,
It has a common proper motion companion that was discovered by W. J. Luyten in 1960.[1] This M-type star appears
Infrared Deep Sky Survey(UKIDSS) with a recovery image confirming the object's proper motion on 2 March 2010.[1]
This showed the large proper motion and parallax of the star was similar in both size and direction to those of α Centauri AB,
it has been known to astronomers for over a century as a high-velocity star based on its other vectors(proper motion).
it does not appear in more recent membership lists for this group[2] due to its small proper motion and small trigonometric parallax as measured by Hipparcos.
it would have a smaller proper motion.
it has been known to astronomers for over a century as a high-velocity star based on its other vectors(proper motion).
have the same proper motion on the sky, indicating they are gravitationally influencing each other to some degree.
In 2005, using observations of two water masers on opposite sides of Triangulum via the VLBA, researchers were, for the first time, able to estimate the angular rotation and proper motion of Triangulum.
And although the speed at which stars move towards or away from Earth can be measured by changes in colour, sorting out their proper motion- and so their full 3D velocity- is difficult because most objects move so little across the sky on human timescales.