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  2. List of largest stars - Wikipedia

    en.wikipedia.org/wiki/List_of_largest_stars

    Widely recognised as being among the largest known stars, [21] radius decreased to ~500 R ☉ during the 2020 great dimming event. [75] R Horologii: 630 [60] L/T eff: A red giant star with one of the largest ranges in brightness known of stars in the night sky visible to the unaided eye. Despite its large radius, it is less massive than the Sun.

  3. UY Scuti - Wikipedia

    en.wikipedia.org/wiki/UY_Scuti

    UY Scuti was analyzed to be the largest and the most luminous of the three stars measured, at 1,708 ± 192 R ☉ (1.188 × 10 9 ± 134,000,000 km; 7.94 ± 0.89 AU) based on an angular diameter of 5.48 ± 0.10 mas and an assumed distance of 2.9 ± 0.317 kiloparsecs (kpc) (about 9,500 ± 1,030 light-years) which was originally derived in 1970 ...

  4. HD 140283 - Wikipedia

    en.wikipedia.org/wiki/HD_140283

    Very low but non-zero metallicities of stars like HD 140283 indicate the star was formed from existing materials in the second generation of stellar creation; their heavy-element content is believed to have come from zero-metal stars (population III stars), which have never been observed. [18] Those first stars are thought to have been formed ...

  5. List of star extremes - Wikipedia

    en.wikipedia.org/wiki/List_of_star_extremes

    A star is a massive luminous spheroid astronomical object made of plasma that is held together by its own gravity.Stars exhibit great diversity in their properties (such as mass, volume, velocity, stage in stellar evolution, and distance from Earth) and some of the outliers are so disproportionate in comparison with the general population that they are considered extreme.

  6. In 'groundbreaking' study, astronomers detect record number ...

    www.aol.com/groundbreaking-study-astronomers...

    Astronomers used NASA's James Webb Space Telescope to reveal 44 stars in a galaxy so far away, its light dates to when the universe was half its age. In 'groundbreaking' study, astronomers detect ...

  7. List of most massive stars - Wikipedia

    en.wikipedia.org/wiki/List_of_most_massive_stars

    Some stars may once have been more massive than they are today. It is likely that many large stars have suffered significant mass loss (perhaps as much as several tens of solar masses). This mass may have been expelled by superwinds: high velocity winds that are driven by the hot photosphere into interstellar space. The process forms an ...

  8. See the farthest star ever detected — a million times ... - AOL

    www.aol.com/news/see-farthest-star-ever-detected...

    It’s visible because of a “wrinkle in space-time,” astronomers say. For premium support please call: 800-290-4726 more ways to reach us

  9. List of Solar System objects by size - Wikipedia

    en.wikipedia.org/wiki/List_of_Solar_System...

    The largest of these may have a hydrostatic-equilibrium shape, but most are irregular. Most of the trans-Neptunian objects (TNOs) listed with a radius smaller than 200 km have " assumed sizes based on a generic albedo of 0.09" since they are too far away to directly measure their sizes with existing instruments.