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  2. Night sky - Wikipedia

    en.wikipedia.org/wiki/Night_sky

    The night sky is the nighttime appearance of celestial objects like stars, planets, and the Moon, which are visible in a clear sky between sunset and sunrise, when the Sun is below the horizon. Natural light sources in a night sky include moonlight, starlight, and airglow, depending on location and timing. Aurorae light up the skies above the ...

  3. Webb's First Deep Field - Wikipedia

    en.wikipedia.org/wiki/Webb's_First_Deep_Field

    Webb's First Deep Field was taken by the telescope's Near-Infrared Camera (NIRCam) and is a composite produced from images at different wavelengths, totalling 12.5 hours of exposure time. [3] [4] SMACS 0723 is a galaxy cluster visible from Earth's Southern Hemisphere, [5] and has often been examined by Hubble and other telescopes in search of ...

  4. Hubble Deep Field - Wikipedia

    en.wikipedia.org/wiki/Hubble_Deep_Field

    The Hubble Deep Field. The Hubble Deep Field (HDF) is an image of a small region in the constellation Ursa Major, constructed from a series of observations by the Hubble Space Telescope. It covers an area about 2.6 arcminutes on a side, about one 24-millionth of the whole sky, which is equivalent in angular size to a tennis ball at a distance ...

  5. Rare comet to soar through the NY night sky this ... - AOL

    www.aol.com/rare-comet-soar-ny-night-152233091.html

    October 10, 2024 at 9:53 AM. New Yorkers should take some time to look up at the night sky this week as there's a chance to see a once-in-a-lifetime comet passing by. An Oort Cloud comet named C ...

  6. Orion Nebula - Wikipedia

    en.wikipedia.org/wiki/Orion_nebula

    The Orion Nebula (also known as Messier 42, M42, or NGC 1976) is a diffuse nebula situated in the Milky Way, being south of Orion's Belt in the constellation of Orion, [b] and is known as the middle "star" in the "sword" of Orion. It is one of the brightest nebulae and is visible to the naked eye in the night sky with an apparent magnitude of 4.0.

  7. Star trail - Wikipedia

    en.wikipedia.org/wiki/Star_trail

    Star trail photography on salt lake in Lut desert in Iran. A star trail is a type of photograph that uses long exposure times to capture diurnal circles, the apparent motion of stars in the night sky due to Earth's rotation. A star-trail photograph shows individual stars as streaks across the image, with longer exposures yielding longer arcs.

  8. Astrophotography - Wikipedia

    en.wikipedia.org/wiki/Astrophotography

    An image of Orion's Belt composited from digitized black-and-white photographic plates recorded through red and blue astronomical filters, with a computer synthesized green channel. The plates were taken using the Samuel Oschin Telescope between 1987 and 1991. Astrophotography, also known as astronomical imaging, is the photography or imaging ...

  9. Orion (constellation) - Wikipedia

    en.wikipedia.org/wiki/Orion_(constellation)

    Orion is bordered by Taurus to the northwest, Eridanus to the southwest, Lepus to the south, Monocerosto the east, and Gemini to the northeast. Covering 594 square degrees, Orion ranks twenty-sixth of the 88 constellations in size. The constellation boundaries, as set by Belgian astronomer Eugène Delportein 1930, are defined by a polygon of 26 ...

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