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  2. Amateur astronomy - Wikipedia

    en.wikipedia.org/wiki/Amateur_astronomy

    An image of the Cat's Paw Nebula created combining the work of professional and amateur astronomers. The image is the combination of the 2.2-metre MPG/ESO telescope of the La Silla Observatory in Chile and a 0.4-meter amateur telescope. Amateur astronomers engage in many imaging techniques including film, DSLR, LRGB, and CCD astrophotography.

  3. 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 1840, but it was not until the late 19th century that advances in technology allowed for detailed stellar photography.

  4. 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 ...

  5. Information and communications technology in agriculture

    en.wikipedia.org/wiki/Information_and...

    Some useful resources for learning about e-agriculture in practice are the World Bank's e-sourcebook ICT in agriculture – connecting smallholder farmers to knowledge, networks and institutions (2011), [2] ICT uses for inclusive value chains (2013), [3] ICT uses for inclusive value chains (2013) [4] and Success stories on information and ...

  6. 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.

  7. Radio astronomy - Wikipedia

    en.wikipedia.org/wiki/Radio_astronomy

    Radio telescopes may need to be extremely large in order to receive signals with low signal-to-noise ratio. Also since angular resolution is a function of the diameter of the " objective " in proportion to the wavelength of the electromagnetic radiation being observed, radio telescopes have to be much larger in comparison to their optical ...

  8. Digital agriculture - Wikipedia

    en.wikipedia.org/wiki/Digital_agriculture

    The loss of agricultural jobs can be offset by new job opportunities in manufacturing and maintaining the necessary technology for the work. Digital agriculture also enables individual farmers to work in concert, collecting and sharing data using technology. [135] and The hope is that young people want to become digital farmers [136]

  9. Afocal photography - Wikipedia

    en.wikipedia.org/wiki/Afocal_photography

    Afocal photography works with any system that can produce a virtual image of parallel light, for example telescopes and microscopes. Afocal photographic setups work because the imaging device's eyepiece produces collimated light and with the camera's lens focused at infinity, creating an afocal system with no net convergence or divergence in the light path between the two devices. [2]