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  2. List of smallest known stars - Wikipedia

    en.wikipedia.org/wiki/List_of_smallest_known_stars

    Part of a symbiotic binary star system containing a red giant and a white dwarf. As in 2019, with mass 67.54 ± 12.79MJ (0.0523-0.0767 M☉) is the lowest known mass hydrogen-burning star. Luhman 16 B and Luhman 16 A are the closest brown dwarf stars to Earth, and the third-nearest star system to the Solar System.

  3. Dwarf star - Wikipedia

    en.wikipedia.org/wiki/Dwarf_star

    The Hertzsprung–Russell diagram showing the location of main sequence dwarf stars and white dwarfs. A dwarf star is a star of relatively small size and low luminosity. Most main sequence stars are dwarf stars. The meaning of the word "dwarf" was later extended to some star-sized objects that are not stars, and compact stellar remnants that ...

  4. Subdwarf B star - Wikipedia

    en.wikipedia.org/wiki/Subdwarf_B_star

    Subdwarf B star. A B-type subdwarf ( sdB) is a kind of subdwarf star with spectral type B. They differ from the typical subdwarf by being much hotter and brighter. [ 2] They are situated at the "extreme horizontal branch " of the Hertzsprung–Russell diagram. Masses of these stars are around 0.5 solar masses, and they contain only about 1% ...

  5. Star - Wikipedia

    en.wikipedia.org/wiki/Star

    A star-forming region in the Large Magellanic Cloud. A star is a luminous spheroid of plasma held together by self-gravity. [ 1] The nearest star to Earth is the Sun. Many other stars are visible to the naked eye at night; their immense distances from Earth make them appear as fixed points of light.

  6. List of nearest stars - Wikipedia

    en.wikipedia.org/wiki/List_of_nearest_stars

    It contains Ursa Major and the Hyades star cluster, among others. The Local Bubble also contains the neighboring G-Cloud, which contains the stars Alpha Centauri and Altair. In the galactic context, the Local Bubble is a small part of the Orion Arm, which contains most stars that we can see without a telescope.

  7. Ultra-cool dwarf - Wikipedia

    en.wikipedia.org/wiki/Ultra-cool_dwarf

    Ultra-cool dwarf. An ultra-cool dwarf is a stellar or sub-stellar object that has an effective temperature lower than 2,700 K (2,430 °C; 4,400 °F). [1] This category of dwarf stars was introduced in 1997 by J. Davy Kirkpatrick, Todd J. Henry, and Michael J. Irwin. It originally included very low mass M-dwarf stars with spectral types of M7 ...

  8. K-type main-sequence star - Wikipedia

    en.wikipedia.org/wiki/K-type_main-sequence_star

    0.6 M☉ to 0.9 M☉. A K-type main-sequence star, also referred to as a K-type dwarf, or orange dwarf, is a main-sequence ( hydrogen -burning) star of spectral type K and luminosity class V. These stars are intermediate in size between red M-type main-sequence stars ("red dwarfs") and yellow/white G-type main-sequence stars. They have masses ...

  9. Flag of China - Wikipedia

    en.wikipedia.org/wiki/Flag_of_China

    People's Republic of China. A large golden star within an arc of four smaller golden stars, in the canton, on a field of Chinese red. The national flag of the People's Republic of China, also known as the Five-star Red Flag, [ 1] is a Chinese red field with five golden stars charged at the canton. The design features one large star, with four ...