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  1. en.wikipedia.org › wiki › Stellar_classificationStellar classification - Wikipedia

    Há 4 dias · 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.

    • Star

      The stellar temperature will determine the rate of...

  2. en.wikipedia.org › wiki › StarStar - Wikipedia

    Há 4 dias · The stellar temperature will determine the rate of ionization of various elements, resulting in characteristic absorption lines in the spectrum. The surface temperature of a star, along with its visual absolute magnitude and absorption features, is used to classify a star (see classification below).

  3. Imagens

    • Types of Stars | Stellar Classification, Lifecycle, and Charts
    • star types - Our Universe for kids
    • Understanding Stars: Types, Formation, and Characteristics

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  4. en.wikipedia.org › wiki › List_of_largest_starsList of largest stars - Wikipedia

    Há 5 dias · Below are lists of the largest stars currently known, ordered by radius and separated into categories by galaxy. The unit of measurement used is the radius of the Sun (approximately 695,700 km; 432,300 mi). The Sun, the orbit of Earth, Jupiter, and Neptune, compared to four stars.

  5. www.scientificamerican.com › article › what-areWhat Are Constellations, and Where Do They Come From?

    21 de jun. de 2024 · Every single object in the heavens—stars, galaxies, nebulae, black holes, everything—is “in” a constellation, making it easier for everyone to find them.

  6. spaceplace.nasa.gov › constellations › enWhat Are Constellations? | NASA Space Place – NASA Science ...

    9 de jul. de 2024 · The Short Answer: There are a few different definitions of constellations, but many people think of constellations as a group of stars. The constellations you can see at night depend on your location on Earth and the time of year. Constellations were named after objects, animals, and people long ago.

  7. www.britannica.com › place › Milky-Way-GalaxyMilky Way Galaxy - Star populations and movement | Britannica

    Há 5 dias · Science Astronomy. Star populations and movement. in Milky Way Galaxy. Also known as: The Galaxy. Written by. Paul W. Hodge. Professor Emeritus, Department of Astronomy, University of Washington, Seattle. Author of The Andromeda Galaxy; Higher then Everest: An Adventurer's Guide to the Solar System; and others. Paul W. Hodge. Fact-checked by.

  8. Vídeos

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  9. spaceplace.nasa.gov › all-about-the-sun › enAll About the Sun | NASA Space Place – NASA Science for Kids

    9 de jul. de 2024 · Credit: NASA/JPL-Caltech. But even though our Sun is kind of an ordinary star, there are also a few things that make our Sun quite special. For example… We can’t live without the Sun! Life on Earth depends on the Sun. Here are just a few reasons why: The Sun’s gravity holds our entire solar system together.