Proper motion is the angular speed of a celestial object, such as a star, as it moves across the sky. It is an astrometric measure, giving an object's...

produced a series of catalogues: L – Luyten, Proper motion stars and White dwarfs Luyten, W. J., Proper Motion Survey with the forty-eight inch Schmidt Telescope...

photographic plates taken at different times during a proper motion survey. These showed large proper motion and parallax similar in both size and direction...

those within 10 parsecs. Nearby stars often have a relatively high proper motion, so astrometric binaries will appear to follow a wobbly path across...

out along the relativistic jets emitted from these objects can have a proper motion that appears greater than the speed of light. All of these sources are...

This is a list of high-proper motion stars. The 34 sources with the highest proper motion, based on data from the highly accurate Gaia catalogues, was...

46 million km (0.31 AU; 29 million mi) from the Sun at perihelion. The proper motion of Sgr A* is approximately −2.70 mas per year for the right ascension...

orbital period of Jupiter. common proper motion A term used to indicate that two or more stars share the same motion through space, within the margin of...

white dwarfs.: 2  Eventually, many faint white stars that had high proper motion were found, indicating that they could be suspected to be low-luminosity...

could show as a Hipparcos proper motion discrepant compared to those established from long temporal baseline proper motion programmes on ground. Higher-order...

61 Cygni first attracted the attention of astronomers when its large proper motion was first demonstrated by Giuseppe Piazzi in 1804. In 1838, Friedrich...

Kevin Luhman in March 2013, who noticed the object's unusually high proper motion while searching for potential binary companions of the Sun in WISE images...

a total of 505 proper names of stars. Of the roughly 10,000 stars visible to the naked eye, only a few hundred have been given proper names in the history...

the proper motion velocity can be calculated. Together with the radial velocity, the total velocity can be calculated. Stars with high rates of proper motion...

velocity of a star is the component of its motion that is toward or away from the Sun. Unlike proper motion, a star's radial velocity cannot be directly...

outlying position, abnormally high brightness, and slightly atypical proper motion, instead being categorized as an unrelated red supergiant. In a later...

2017 revealed that the structure observed by Herschel shows no common proper motion with Zeta Reticuli. In these observations, no significant flux has been...

relatively high rate of transverse motion against the background, also known as the proper motion. A high rate of proper motion can indicate that the star is...

Orion's stars will gradually move away from the constellation due to proper motion. However, Orion's brightest stars all lie at a large distance from the...

the Bonner Durchmusterung and in 1961 the star was identified as a proper motion star by Giclas et al. In 1984 its spectrum was observed for the first...

consist of physically related stars. When studies were first made of the proper motions of the stars, it was found that they are all moving in the same...

falling in," it is noted later, "the House did not adjourn until a proper motion had been put and carried in the affirmative." March 1 – Francis II,...

Apparent motion across the sky relative to other stars is called proper motion. Most stars have very small proper motions, but a few have proper motions...

brown dwarfs and the closest system found since the measurement of the proper motion of Barnard's Star in 1916, and the third-closest-known system to the...

the spectrum shift caused by the Doppler effect. The transverse, or proper motion must be found by taking a series of positional determinations against...

Zodiac and Ophiuchus. Among the remaining stars, the nearer ones exhibit proper motion, so it is only a matter of time before some of them cross a constellation...

degrees of the south celestial pole. This is due to axial precession and proper motion of Sirius itself which moves slowly in the SSW direction, so it will...

diameter of the full Moon. Proxima Centauri has a relatively large proper motion—moving 3.85 arcseconds per year across the sky. It has a radial velocity...

asteroids but it was found to be ideally suited for the study of the proper motion of low-luminosity stars using much the same technique. In 1919 Wolf...

In physics, motion is when an object changes its position with respect to a reference point in a given time. Motion is mathematically described in terms...