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  2. Astrophotography - Wikipedia

    en.wikipedia.org/wiki/Astrophotography

    Astrophotography, also known as astronomical imaging, is the photography or imaging of astronomical objects, celestial events, or areas of the night sky. The first photograph of an astronomical object (the Moon ) was taken in 1839 [ 1 ] , but it was not until the late 19th century that advances in technology allowed for detailed stellar ...

  3. Astronomy - Wikipedia

    en.wikipedia.org/wiki/Astronomy

    Astronomy is one of the few sciences in which amateurs play an active role. This is especially true for the discovery and observation of transient events. Amateur astronomers have helped with many important discoveries, such as finding new comets.

  4. Diffraction spike - Wikipedia

    en.wikipedia.org/wiki/Diffraction_spike

    Apertures blades of camera. Iris diaphragms with moving blades are used in most modern camera lenses to restrict the light received by the film or sensor. While manufacturers attempt to make the aperture circular for a pleasing bokeh, when stopped down to high f-numbers (small apertures), its shape tends towards a polygon with the same number of sides as blades.

  5. History of astronomy - Wikipedia

    en.wikipedia.org/wiki/History_of_astronomy

    The Revival of Planetary Astronomy in Carolingian and Post-Carolingian Europe. Variorum Collected Studies Series. Vol. CS 279. Ashgate. ISBN 0-86078-868-7. Hodson, F. R., ed. (1974). The Place of Astronomy in the Ancient World: A Joint Symposium of the Royal Society and the British Academy. Oxford University Press. ISBN 0-19-725944-8.

  6. An asteroid has a 2% chance of hitting Earth in 2032. Here’s ...

    www.aol.com/news/asteroid-2-chance-hitting-earth...

    “Hawaiʻi’s telescopes are some of the most important tools for planetary defense,” said Doug Simons, director at the University of Hawaii’s Institute for Astronomy, in a statement.

  7. Astronomical spectroscopy - Wikipedia

    en.wikipedia.org/wiki/Astronomical_spectroscopy

    The Star-Spectroscope of the Lick Observatory in 1898. Designed by James Keeler and constructed by John Brashear.. Astronomical spectroscopy is the study of astronomy using the techniques of spectroscopy to measure the spectrum of electromagnetic radiation, including visible light, ultraviolet, X-ray, infrared and radio waves that radiate from stars and other celestial objects.

  8. Travis Kelce Just Revealed the Ice Cream Brand You Need to ...

    www.aol.com/lifestyle/travis-kelce-just-revealed...

    As you likely know by now, Travis Kelce will be vying for his fourth Super Bowl win with the Kansas City Chiefs on February 9. You’re probably also aware that he’s dating 14-time Grammy winner ...

  9. Pillars of Creation - Wikipedia

    en.wikipedia.org/wiki/Pillars_of_Creation

    This video clip shows a visualization of the three-dimensional structure of the Pillars of Creation. Closer view of one pillar. Pillars of Creation is a photograph taken by the Hubble Space Telescope of elephant trunks of interstellar gas and dust in the Eagle Nebula, in the Serpens constellation, some 6,500–7,000 light-years (2,000–2,100 pc; 61–66 Em) from Earth. [1]