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  2. Monochrome-astrophotography-techniques - Wikipedia

    en.wikipedia.org/wiki/Monochrome...

    Monochrome astrophotography also requires a greater number of calibration frames. Calibration frames are used capture artefacts and dust on the image sensor and filter, and light gradients due to internal reflections in the optical train. These can then be removed from the final image.

  3. Teach Yourself - Wikipedia

    en.wikipedia.org/wiki/Teach_Yourself

    The author, Nigel Cumberland, of a Teach Yourself book entitled Secrets of Success at Work. Like many similar series, Teach Yourself has always used a common design for all of its books. Most older titles are covered with a distinctive yellow and blue, (formerly black), dust jacket, but over the years the publisher has changed the cover design ...

  4. 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 ...

  5. Category:Astrophotography - Wikipedia

    en.wikipedia.org/wiki/Category:Astrophotography

    Astrophotography cameras (3 P) Pages in category "Astrophotography" The following 26 pages are in this category, out of 26 total. This list may not reflect recent ...

  6. Astronomy (magazine) - Wikipedia

    en.wikipedia.org/wiki/Astronomy_(magazine)

    Astronomy is a magazine about the science and hobby of astronomy.Based near Milwaukee in Brookfield, Wisconsin, it was produced by Kalmbach Publishing. Astronomy’s readers include those interested in astronomy and those who want to know about sky events, observing techniques, astrophotography, and amateur astronomy in general.

  7. Photometry (astronomy) - Wikipedia

    en.wikipedia.org/wiki/Photometry_(astronomy)

    [3] Photometry is also used in the observation of variable stars , [ 4 ] by various techniques such as, differential photometry that simultaneously measures the brightness of a target object and nearby stars in the starfield [ 5 ] or relative photometry by comparing the brightness of the target object to stars with known fixed magnitudes. [ 6 ]

  8. Casu marzu: The world’s ‘most dangerous’ cheese - AOL

    www.aol.com/news/casu-marzu-world-most-dangerous...

    It’s illegal to sell or buy, but casu marzu, a maggot-infested sheep milk cheese is a revered delicacy on the Italian island of Sardinia. Locals hope their unusual dairy product can shed its ...

  9. Observational astronomy - Wikipedia

    en.wikipedia.org/wiki/Observational_astronomy

    An amateur astrophotography setup with an automated guide system connected to a laptop. The key instrument of nearly all modern observational astronomy is the telescope. This serves the dual purposes of gathering more light so that very faint objects can be observed, and magnifying the image so that small and distant objects can be observed.

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