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  2. (α/Fe) versus (Fe/H) diagram - Wikipedia

    en.wikipedia.org/wiki/(α/Fe)_versus_(Fe/H)_diagram

    These diagrams enable the assessment of nucleosynthesis channels and galactic evolution in samples of stars as a first-order approximation. They are among the most commonly used tools for Galactic population analysis of the Milky Way. The diagrams use abundance ratios normalised to the Sun, (placing the Sun at (0,0) in the diagram).

  3. Pokémon Quest - Wikipedia

    en.wikipedia.org/wiki/Pokémon_Quest

    Pokémon Quest is a free-to-play action-adventure game in the Pokémon series developed by Game Freak. It was released for the Nintendo Switch in May 2018 and for Android and iOS in June 2018. Within a week of its release, it had reached over 7.5 million downloads.

  4. Milky Way - Wikipedia

    en.wikipedia.org/wiki/Milky_Way

    The Milky Way [c] is the galaxy that includes the Solar System, with the name describing the galaxy's appearance from Earth: ...

  5. Stellar population - Wikipedia

    en.wikipedia.org/wiki/Stellar_population

    The Milky Way. Population II stars are in the galactic bulge and globular clusters. Artist’s impression of a field of population III stars 100 million years after the Big Bang. Population II, or metal-poor, stars are those with relatively little of the elements heavier than helium. These objects were formed during an earlier time of the universe.

  6. Messier 67 - Wikipedia

    en.wikipedia.org/wiki/Messier_67

    M67 is not the oldest known open cluster, several Milky Way clusters are known to be older, yet farther than M67. It is a paradigm study object in stellar evolution: [6] it is well-populated; has negligible amounts of dust obscuration; all its stars are at the same distance and age, save for approximately 30 anomalous blue stragglers

  7. Space Interferometry Mission - Wikipedia

    en.wikipedia.org/wiki/Space_Interferometry_Mission

    How scientists think the Milky Way is shaped. Interferometric measurements of stellar positions over the course of the mission would have permitted SIM to precisely measure the distances between stars throughout the Milky Way. This would have allowed astronomers to create a "roadmap" of the Galaxy, answering many questions about its shape and size.

  8. VY Canis Majoris - Wikipedia

    en.wikipedia.org/wiki/VY_Canis_Majoris

    Sh2-310 itself is located on the outer edge of the Orion Arm of the Milky Way. [32] Melnik and others later prefer a range centred on 1.2 kiloparsecs (about 3,900 light-years). [38] Distances can be calculated by measuring the change in position against very distant background objects as the telescope orbits the Sun.

  9. Stellar classification - Wikipedia

    en.wikipedia.org/wiki/Stellar_classification

    A simple chart for classifying the main star types using Harvard classification In astronomy , stellar classification is the classification of stars based on their spectral characteristics. Electromagnetic radiation from the star is analyzed by splitting it with a prism or diffraction grating into a spectrum exhibiting the rainbow of colors ...