• Thumbnail for Almucantar
    An almucantar (also spelled almucantarat or almacantara) is a circle on the celestial sphere parallel to the horizon. Two stars that lie on the same almucantar...
    4 KB (486 words) - 09:10, 13 February 2024
  • Thumbnail for Astrolabe
    horizontal cross-hairs which plots locations on an azimuthal ring called an almucantar (altitude-distance circle). An arm called a radius connects from the center...
    48 KB (5,312 words) - 00:15, 21 April 2024
  • The transom can be moved on the staff and used to measure angles. The Almucantar staff is a device specifically used for measuring the altitude of the...
    18 KB (2,473 words) - 20:41, 8 October 2023
  • Thumbnail for AERONET
    products in diverse aerosol regimes. Inversion products are retrieved from almucantar scans of radiance as a function of scattering angle and include products...
    3 KB (362 words) - 19:59, 6 October 2022
  • Thumbnail for Quadrant (instrument)
    1300, and is in the local Stedelijk Museum in Zutphen. The astrolabe/almucantar quadrant – a quadrant developed from the astrolabe: This quadrant was...
    23 KB (2,881 words) - 00:48, 8 March 2024
  • Thumbnail for Astronomy in the medieval Islamic world
    problems. The horary quadrant, for finding the time of day with the sun. The almucantar quadrant, which was developed from the astrolabe. Planetary equatoria...
    70 KB (8,089 words) - 08:49, 19 April 2024
  • Thumbnail for 8th Field Survey Squadron
    Theodolite Kern DKM3-A with an impersonal micrometer and Horrebow bubble for Almucantar longitude and latitude for 1st Order/Laplace astro-geodetic surveys –...
    41 KB (5,536 words) - 14:27, 8 April 2024
  • Shadow square Sundial Schema for horizontal sundials Triquetrum Concepts Almucantar Apogee Astrology Astrophysics Axial tilt Azimuth Celestial mechanics Celestial...
    5 KB (385 words) - 04:17, 22 August 2023
  • Thumbnail for Muhammad al-Qunawi
    (or rubu tahtası in Ottoman Turkish, translated into English as the "almucantar quadrant" or the "astrolabe quadrant"). In the early Ottoman astronomy...
    15 KB (1,783 words) - 20:12, 12 October 2023
  • Thumbnail for Circle of equal altitude
    illumination or terminator (star = Sun, Ho = 0 for places at Sunrise/Sunset). Almucantar Navigation Celestial navigation Intercept method Longitude by chronometer...
    5 KB (666 words) - 21:04, 12 September 2023