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Template documentation This template is for use on List of largest known stars to calculate the radius of a star and format the table row if the explicit radius is not given in the source. If the source provides both the radius and method of detection, this template is not required and the information can be entered in as usual with table notation.
A giant star has a substantially larger radius and luminosity than a main-sequence (or dwarf) star of the same surface temperature. [1] They lie above the main sequence (luminosity class V in the Yerkes spectral classification) on the Hertzsprung–Russell diagram and correspond to luminosity classes II and III. [2]
This is the nearest red giant to the Earth, and the fourth brightest star in the night sky. Pollux (β Geminorum) 9.06 ± 0.03 [95] AD The nearest giant star to the Earth. Spica (α Virginis A) 7.47 ± 0.54 [101] One of the nearest supernova candidates and the sixteenth-brightest star in the night sky. Regulus (α Leonis A) 4.16 × 3.14 [102]
It is assumed to be a relatively normal early-B main sequence star with a mass around 7 M ☉, a temperature around 18,500 K, and a radius of about 5 R ☉. [13] As it falls short of the mass limit required for stars to undergo a supernova, it will likely expand into a red giant before dying as a massive white dwarf similar to Sirius B. [62] [63]
The following is a list of stars with resolved images, that is, stars whose images have been resolved beyond a point source. Aside from the Sun , observed from Earth , stars are exceedingly small in apparent size, requiring the use of special high-resolution equipment and techniques to image.
The nearest white giant. Capella A 42.919 ± 0.049 [9] G8III [9] 11.98 ± 0.57 [9] 2.569 ± 0.007 [9] 0.03 [10] The nearest yellow giant, together with Capella A. With a magnitude of 0.08, [11] the Capella star system is the 6th-brightest star in the night sky. Capella B G0III [9] 8.83 ± 0.33 [9] 2.483 ± 0.007 [9] 0.16 [10] The nearest yellow ...
This red giant star will, one day, explode as a supernova. However, it is challenging to determine when the eruption will take place. However, it is challenging to determine when the eruption will ...
With an apparent visual magnitude of 2.0, [2] it is the mean 50th-brightest star in the night sky. Based upon parallax measurements made with the Hipparcos astrometry satellite, [14] [15] Hamal is about 65.8 light-years (20.2 parsecs) from Earth. [1] It is a giant star that may host an orbiting planet with a mass greater than Jupiter. [8]