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  2. Light-year - Wikipedia

    en.wikipedia.org/wiki/Light-year

    The product of Simon Newcomb's J1900.0 mean tropical year of 31 556 925.9747 ephemeris seconds and a speed of light of 299 792.5 km/s produced a light-year of 9.460 530 × 10 15 m (rounded to the seven significant digits in the speed of light) found in several modern sources [10] [11] [12] was probably derived from an old source such as C. W ...

  3. Minute and second of arc - Wikipedia

    en.wikipedia.org/wiki/Minute_and_second_of_arc

    an object of diameter 45 866 916 km at one light-year, an object of diameter one astronomical unit (149 597 870.7 km) at a distance of one parsec, per the definition of the latter. [7] One milliarcsecond is about the size of a half dollar, seen from a distance equal to that between the Washington Monument and the Eiffel Tower.

  4. Light-second - Wikipedia

    en.wikipedia.org/wiki/Light-second

    Voyager 1 is about 0.94 light-days from the Sun (as of April 2024) light-week 7 light-days = 604 800 light-seconds 181 314 478 598 400 m: 1.813 × 10 11 km: 1.127 × 10 11 miles: The Oort cloud is thought to extend between 41 and 82 light-weeks out from the Sun light-year 365.25 light-days = 31 557 600 light-seconds 9 460 730 472 580 800 m: 9. ...

  5. Parallax in astronomy - Wikipedia

    en.wikipedia.org/wiki/Parallax_in_astronomy

    A parsec is the distance from the Sun to an astronomical object that has a parallax angle of one arcsecond (not to scale). The parsec (symbol: pc) is a unit of length used to measure the large distances to astronomical objects outside the Solar System, approximately equal to 3.26 light-years or 206,265 astronomical units (AU), i.e. 30.9 trillion kilometres (19.2 trillion miles).

  6. Pi4 Orionis - Wikipedia

    en.wikipedia.org/wiki/Pi4_Orionis

    Based upon an annual parallax shift of 3.1 mass, [1] it is located roughly 1,050 light-years from the Sun. This is a spectroscopic binary star system with an orbital period of 9.5 days and an eccentricity of 0.03. [5] The primary component is a B-type star with a stellar classification of B2 III. [3]

  7. Comparison of BitTorrent sites - Wikipedia

    en.wikipedia.org/wiki/Comparison_of_BitTorrent_sites

    BitTorrent sites may operate a BitTorrent tracker and are often referred to as such. Operating a tracker should not be confused with hosting content. A directory allows users to browse the content available on a website based on various categories.

  8. qBittorrent - Wikipedia

    en.wikipedia.org/wiki/QBittorrent

    Integrated torrent search engine (simultaneous search in many torrent search sites and category-specific search requests, such as books, music and software) Remote control through a secure web user interface; Sequential downloading (download in order). Enables "streaming" media files; Super-seeding option; Torrent creation tool

  9. List of nearest stars - Wikipedia

    en.wikipedia.org/wiki/List_of_nearest_stars

    This number is likely much higher, due to the sheer number of stars needed to be surveyed; a star approaching the Solar System 10 million years ago, moving at a typical Sun-relative 20–200 kilometers per second, would be 600–6,000 light-years from the Sun at present day, with millions of stars closer to the Sun.