• Thumbnail for Proper motion
    Proper motion is the astrometric measure of changes in the apparent places of stars or other celestial objects as they move relative to the center of...
    23 KB (2,453 words) - 22:10, 1 May 2025
  • Thumbnail for Star catalogue
    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...
    47 KB (5,497 words) - 21:23, 11 May 2025
  • Thumbnail for Binary star
    those within 10 parsecs. Nearby stars often have a relatively high proper motion, so astrometric binaries will appear to follow a wobbly path across...
    68 KB (8,202 words) - 02:35, 23 March 2025
  • Thumbnail for Superluminal motion
    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...
    21 KB (3,095 words) - 17:46, 10 May 2025
  • Thumbnail for Alpha Centauri
    Alpha Centauri (category Stars with proper names)
    photographic plates taken at different times during a proper motion survey. These showed large proper motion and parallax similar in both size and direction...
    120 KB (11,667 words) - 01:04, 22 May 2025
  • 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...
    166 KB (19,171 words) - 07:09, 28 May 2025
  • Thumbnail for WISE 0855−0714
    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...
    27 KB (2,616 words) - 15:28, 19 May 2025
  • 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...
    32 KB (4,692 words) - 03:01, 21 May 2025
  • Thumbnail for Sagittarius A*
    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...
    74 KB (7,830 words) - 15:50, 22 May 2025
  • Thumbnail for White dwarf
    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...
    154 KB (17,962 words) - 15:07, 27 May 2025
  • Thumbnail for Star
    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...
    147 KB (16,422 words) - 13:41, 20 May 2025
  • Thumbnail for Hipparcos
    could show as a Hipparcos proper motion discrepant compared to those established from long temporal baseline proper motion programmes on ground. Higher-order...
    59 KB (6,798 words) - 07:01, 19 March 2025
  • Thumbnail for Stellar kinematics
    the spectrum shift caused by the Doppler effect. The transverse, or proper motion must be found by taking a series of positional determinations against...
    61 KB (7,068 words) - 10:40, 28 May 2025
  • a total of 501 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...
    108 KB (2,160 words) - 17:15, 25 May 2025
  • Thumbnail for 61 Cygni
    61 Cygni first attracted the attention of astronomers when its large proper motion was first demonstrated by Giuseppe Piazzi in 1804. In 1838, Friedrich...
    50 KB (5,213 words) - 14:24, 24 May 2025
  • Thumbnail for Zeta Reticuli
    2017 revealed that the structure observed by Herschel shows no common proper motion with Zeta Reticuli. In these observations, no significant flux has been...
    24 KB (2,135 words) - 18:46, 27 April 2025
  • Thumbnail for Motion
    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...
    31 KB (3,790 words) - 20:03, 24 May 2025
  • as indicated by blueshift. However, the lateral speed (measured as proper motion) is very difficult to measure with sufficient precision to draw reasonable...
    18 KB (1,927 words) - 17:37, 25 May 2025
  • Proper speed may refer to: Proper velocity Proper motion Peculiar velocity This disambiguation page lists articles associated with the title Proper speed...
    124 bytes (43 words) - 19:59, 29 December 2019
  • Thumbnail for Tau Ceti
    Tau Ceti (category Stars with proper names)
    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...
    64 KB (7,151 words) - 19:40, 15 May 2025
  • giants more massive than Jupiter. It is based on measuring a star's proper motion, and seeing how that position changes over time: a planet with a sufficiently...
    22 KB (1,773 words) - 00:36, 18 May 2025
  • Thumbnail for Brownian motion
    Brownian motion is the random motion of particles suspended in a medium (a liquid or a gas). The traditional mathematical formulation of Brownian motion is...
    55 KB (7,140 words) - 01:57, 7 May 2025
  • Thumbnail for Orion (constellation)
    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...
    47 KB (5,220 words) - 18:34, 13 May 2025
  • Thumbnail for BD+05 4868
    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...
    8 KB (679 words) - 19:32, 23 April 2025
  • 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...
    7 KB (415 words) - 21:15, 17 April 2023
  • Thumbnail for Pleiades
    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...
    50 KB (5,409 words) - 22:23, 7 May 2025
  • Thumbnail for Open cluster
    stellar motion was detected by these efforts. However, in 1918 the Dutch–American astronomer Adriaan van Maanen was able to measure the proper motion of stars...
    52 KB (6,310 words) - 13:36, 18 April 2025
  • Thumbnail for HD 140283
    astronomers for over a century as a high-velocity star based on its proper motion. An early spectroscopic analysis by Joseph W. Chamberlain and Lawrence...
    16 KB (1,848 words) - 20:35, 19 March 2025
  • Thumbnail for Proxima Centauri
    Proxima Centauri (category Stars with proper names)
    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...
    106 KB (9,923 words) - 11:10, 20 May 2025
  • low proper motion and would escape detection by older proper motion surveys that have found stars like the 9th-magnitude Barnard's Star. (The proper motion...
    27 KB (2,697 words) - 20:32, 2 May 2025