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  • Thumbnail for Antisolar point
    antisolar point is the abstract point on the celestial sphere directly opposite the Sun from an observer's perspective. This means that the antisolar...
    4 KB (421 words) - 14:52, 20 August 2024
  • Thumbnail for Anticrepuscular rays
    Anticrepuscular rays, or antisolar rays, are meteorological optical phenomena similar to crepuscular rays, but appear opposite the Sun in the sky. Anticrepuscular...
    3 KB (280 words) - 00:57, 5 September 2024
  • Thumbnail for Gegenschein
    counterglow is a faintly bright spot in the night sky centered at the antisolar point. The backscatter of sunlight by interplanetary dust causes this...
    6 KB (627 words) - 03:48, 28 October 2024
  • Thumbnail for Sunbeam
    converge at the antisolar point, the point on the celestial sphere opposite of the Sun's direction. In this case, they are called antisolar rays (anytime...
    7 KB (693 words) - 07:35, 1 November 2024
  • Thumbnail for Heiligenschein
    a retroreflector. Any retroreflective surface is brightest around the antisolar point. Opposition surge by other particles than water and the glory in...
    3 KB (296 words) - 13:48, 20 August 2024
  • Thumbnail for Umbra, penumbra and antumbra
    apparent size of the occluding body increases until it causes a full umbra. Antisolar point Earth's shadow Pogge, Richard. "Lecture 9: Eclipses of the Sun &...
    4 KB (392 words) - 06:48, 21 October 2024
  • Thumbnail for Glory (optical phenomenon)
    and even indoors." Like a rainbow, outdoor glories are centred on the antisolar (or, in case of the moon, antilunar) point, which coincides with the shadow...
    12 KB (1,413 words) - 22:33, 10 November 2024
  • Thumbnail for Sun
    Analemma – Diagrammatic representation of Sun's position over a period of time Antisolar point – Point on the celestial sphere opposite Sun Faint young Sun paradox –...
    165 KB (18,112 words) - 01:49, 14 November 2024
  • Thumbnail for Aureole effect
    perspective the rays seem to be radiating from the antisolar point, within the viewer's shadow. As in similar antisolar optical effects (such as a glory or Heiligenschein)...
    3 KB (339 words) - 09:01, 10 October 2024
  • Thumbnail for Belt of Venus
    actually alpenglow visible near the horizon during twilight, above the antisolar point. Like alpenglow, the backscatter of reddened sunlight also creates...
    5 KB (498 words) - 07:03, 13 June 2024
  • Thumbnail for Rainbow
    }{2}}]} . This results in a rainbow of the n-th order shrinking to the antisolar point and vanishing. The classical Greek scholar Aristotle (384–322 BC)...
    81 KB (9,238 words) - 19:26, 9 November 2024
  • Thumbnail for Subparhelic circle
    the horizon. It passes through both the subsun (below the Sun) and the antisolar point (opposite to the Sun). The subparhelic circle is the subhorizon...
    2 KB (161 words) - 12:52, 6 November 2024
  • Thumbnail for Earth's shadow
    itself casts through its atmosphere and into outer space, toward the antisolar point. During the twilight period (both early dusk and late dawn), the...
    8 KB (858 words) - 11:34, 1 June 2024
  • Thumbnail for Night sky
    Gegenschein is a faint bright spot in the night sky centered at the antisolar point, caused by the backscatter of sunlight by interplanetary dust. Shortly...
    16 KB (1,995 words) - 12:02, 20 June 2024
  • sodium atoms away from the Sun, forming an elongated tail toward the antisolar direction. The continual impacts of small meteorites produce a constant...
    3 KB (317 words) - 13:06, 10 May 2024
  • Thumbnail for Lunar eclipse
    passes near and through the centre of Earth's shadow, contacting the antisolar point. This type of lunar eclipse is relatively rare. The relative distance...
    27 KB (2,928 words) - 00:51, 9 September 2024
  • Thumbnail for Opposition surge
    wavelengths. On Earth, water droplets can also create bright spots around the antisolar point in various situations. For more details, see Heiligenschein and...
    9 KB (1,072 words) - 18:49, 1 April 2024
  • Thumbnail for Interplanetary medium
    medium between Earth and the Sun. A similar phenomenon centered at the antisolar point, gegenschein is visible in a naturally dark, moonless night sky...
    14 KB (1,502 words) - 08:55, 18 April 2024
  • Thumbnail for New Horizons
    (~1 arcsec). The CCD is chilled far below freezing by a passive radiator on the antisolar face of the spacecraft. This temperature differential requires insulation...
    176 KB (17,519 words) - 15:43, 13 November 2024
  • Thumbnail for Atmospheric optics
    supernumerary rainbows on the inside of the primary arc. The shadow of the photographer's head marks the centre of the rainbow circle (antisolar point)....
    39 KB (4,952 words) - 19:16, 21 October 2024
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