• Thumbnail for Blink comparator
    A blink comparator is a viewing apparatus formerly used by astronomers to find differences between two photographs of the night sky. It permits rapid switching...
    4 KB (464 words) - 11:06, 25 April 2025
  • Thumbnail for Observational astronomy
    as they change over time (SN 1987A is a spectacular example). The blink comparator is an instrument that is used to compare two nearly identical photographs...
    27 KB (3,381 words) - 12:00, 22 April 2025
  • steam locomotive. Blinker light, a naval signal lamp device; also sometimes used as a verb indicating use of such a device Blink comparator to detect changes...
    820 bytes (145 words) - 22:24, 27 September 2024
  • known for the invention of the projection blink comparator (PROBLICOM), a low-cost version of the blink comparator. This inexpensive tool allowed amateur...
    3 KB (274 words) - 11:46, 23 August 2024
  • Thumbnail for Kuiper belt
    an icy planetoid with an orbit between Saturn and Uranus. He used a blink comparator, the same device that had allowed Clyde Tombaugh to discover Pluto...
    119 KB (13,267 words) - 16:42, 16 June 2025
  • discoverer of minor planets. He worked at Lowell Observatory using the blink comparator alongside Robert Burnham Jr., author of the famous three-volume Celestial...
    6 KB (228 words) - 21:50, 9 June 2025
  • Thumbnail for Clyde Tombaugh
    photographs of the same section of sky several nights apart. He then used a blink comparator to compare the different images. When he shifted between the two images...
    46 KB (4,898 words) - 17:34, 5 June 2025
  • Thumbnail for Pluto
    pair and determine whether any objects had shifted position. Using a blink comparator, he rapidly shifted back and forth between views of each of the plates...
    165 KB (14,404 words) - 09:58, 14 June 2025
  • Thumbnail for Scattered disc
    considered to be included in this group. Traditionally, devices like a blink comparator were used in astronomy to detect objects in the Solar System, because...
    39 KB (4,419 words) - 18:29, 14 May 2025
  • Thumbnail for Planets beyond Neptune
    He then placed both images of each section in a machine called a blink comparator, which by exchanging images quickly created a time lapse illusion of...
    81 KB (9,958 words) - 13:34, 17 June 2025
  • Thumbnail for Hinman collator
    texts by eye. The idea built on earlier work such as Carl Pulfrich's blink comparator used to help identify the former planet Pluto, and Hinman's work analysing...
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  • to repeat the same series of images and compare the results with a blink comparator. In doing so, he discovered 379 new variable stars and over 1000 stars...
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  • Thumbnail for Astrograph
    Rather than looking through the telescope, it was discovered by using a blink comparator with images taken by an astrograph. By the late 20th century, electronic...
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  • Antikythera mechanism: ancient Greek analogue astronomical computer Blink comparator: instrument for comparing small differences between two photographs...
    5 KB (573 words) - 15:01, 13 February 2025
  • printouts of graphics, a claim few diff programs can make. Beaufort scale Blink comparator Hinman collator Image differencing Visual inspection Visual search...
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  • (Pulfrich) 37.7 2020 Carl Pulfrich, German physicist and inventor of the blink comparator, the device used to discover Pluto WGPSN Simonelli 12°47′N 314°46′E...
    257 KB (289 words) - 09:40, 9 June 2025
  • Thumbnail for Robert T. A. Innes
    viewer, and probably had in mind combining its principle with that of a blink comparator, which he used in finding stars of high proper motion, to make a screen...
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  • Arizona, in 1958 to work on a survey of stellar proper motion using a blink comparator. While Burnham was working at Lowell, he and his co-worker, Norman...
    22 KB (2,518 words) - 23:27, 17 June 2025
  • Germany DMP · 565 566 Stereoskopia 1905 QO The Blink comparator, formerly known as "stereo-comparator", is an apparatus used to find differences between...
    172 KB (448 words) - 07:49, 30 May 2025
  • Thumbnail for Proper motion
    past, searches for high proper motion objects were undertaken using blink comparators to examine the images by eye. More modern techniques such as image...
    23 KB (2,453 words) - 18:42, 16 June 2025
  • Thumbnail for Refracting telescope
    looking at photographs (i.e. 'plates' in astronomy vernacular) in a blink comparator taken with a refracting telescope, an astrograph with a 3 element 13-inch...
    35 KB (3,713 words) - 06:28, 17 June 2025
  • Thumbnail for Photographic plate
    Phoebe in 1898. Pluto was discovered using photographic plates in a blink comparator; its moon Charon was discovered 48 years later in 1978 by U.S. Naval...
    19 KB (2,128 words) - 23:47, 5 June 2025
  • discrepancy between two images for use in fractal image processing". Blink comparator Difference matte Image stabilization Dark frame subtraction – where...
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  • Thumbnail for Linden Observatory Complex
    professional organisations in NSW. One example of such an instrument is the blink comparator commissioned by Father O'Leary of the Riverview College Observatory...
    46 KB (6,524 words) - 03:29, 2 April 2025
  • Thumbnail for Time-domain astronomy
    of transient events, and rapid notification of interested people. Blink comparators have long been used to detect differences between two photographic...
    12 KB (1,324 words) - 06:35, 9 March 2025
  • and concluded that he had made a serious error. He used a stereo blink comparator to compare new plates with plates some 10–20 years old. By blinking...
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  • Thumbnail for NGC 2261
    the same telescope in 1908 by F.C. Jordan, allowing Hubble to use a blink comparator to search for any changes over time in the nebula. NGC 2261 was imaged...
    6 KB (605 words) - 05:56, 16 October 2024
  • Thumbnail for List of geological features on Pluto
    Juno — Pulfrich Carl Pulfrich, German physicist who developed the blink-comparator used to discover Pluto 2020-08-05 · WGPSN Simonelli Damon Simonelli...
    25 KB (1,110 words) - 06:14, 17 June 2025
  • covered an area of 36° × 18°. The Zeiss blink comparator from the Heidelberg Observatory was adapted to perform blink comparison of the plates. This resulted...
    249 KB (1,005 words) - 04:50, 23 January 2025
  • She analyzed thousands photographic plates using a device called a blink comparator, and "contributed immensely to the program of minor planet observations"...
    6 KB (523 words) - 17:33, 24 November 2022