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#observationalastronomy — Public Fediverse posts

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  1. Earth phase (Earth 🌍)

    The Earth phase is the shape of the directly sunlit portion of Earth as viewed from the Moon. From the Moon, Earth phases gradually and cyclically change over the period of a synodic month, as the orbital positions of the Moon around Earth and of Earth around the Sun shift.

    en.wikipedia.org/wiki/Earth_ph

    #EarthPhase #Earth #ObservationalAstronomy

  2. Earth phase (Earth 🌍)

    The Earth phase is the shape of the directly sunlit portion of Earth as viewed from the Moon. From the Moon, Earth phases gradually and cyclically change over the period of a synodic month, as the orbital positions of the Moon around Earth and of Earth around the Sun shift.

    en.wikipedia.org/wiki/Earth_ph

    #EarthPhase #Earth #ObservationalAstronomy

  3. New in the #VirtualObservatory: “MAST GALEX GR6/7 Color Composition HiPS Survey” by Space Telescope Science Institute Catalogs and Surveys Branch
    archive.stsci.edu/vo/mast_serv
    #ObservationalAstronomy

  4. Planet (Planetary science 🪐)

    A planet is a large, rounded astronomical body that is generally required to be in orbit around a star, stellar remnant, or brown dwarf, and is not one itself. The Solar System has eight planets by the most restrictive definition of the term: the terrestrial planets Mercury, Venus, Earth, and Mars, and the giant planets Jupiter, Satu...

    en.wikipedia.org/wiki/Planet

    #Planet #Planets #SolarSystem #PlanetaryScience #ConceptsInAstronomy #ObservationalAstronomy

  5. Planet (Planetary science 🪐)

    A planet is a large, rounded astronomical body that is generally required to be in orbit around a star, stellar remnant, or brown dwarf, and is not one itself. The Solar System has eight planets by the most restrictive definition of the term: the terrestrial planets Mercury, Venus, Earth, and Mars, and the giant planets Jupiter, Satu...

    en.wikipedia.org/wiki/Planet

    #Planet #Planets #SolarSystem #PlanetaryScience #ConceptsInAstronomy #ObservationalAstronomy

  6. New in the #VirtualObservatory: “MAST PanSTARRS1 DR2 Mean Object HATS Survey” by Space Telescope Science Institute Catalogs and Surveys Branch
    archive.stsci.edu/vo/mast_serv
    #ObservationalAstronomy

  7. Umov effect (Planetary science 🪐)

    The Umov effect, also known as Umov's law, is a relationship between the albedo of an astronomical object, and the degree of polarization of light reflecting off it. The effect was discovered by the Russian physicist Nikolay Umov in 1905, and can be observed for celestial objects such as the surface of the Moon and the asteroids. The degree...

    en.wikipedia.org/wiki/Umov_eff

    #UmovEffect #PlanetaryScience #EquationsOfAstronomy #ObservationalAstronomy

  8. Umov effect (Planetary science 🪐)

    The Umov effect, also known as Umov's law, is a relationship between the albedo of an astronomical object, and the degree of polarization of light reflecting off it. The effect was discovered by the Russian physicist Nikolay Umov in 1905, and can be observed for celestial objects such as the surface of the Moon and the asteroids. The degree...

    en.wikipedia.org/wiki/Umov_eff

    #UmovEffect #PlanetaryScience #EquationsOfAstronomy #ObservationalAstronomy