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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.
K-type main-sequence stars, also known as orange dwarfs, may be candidates for supporting extraterrestrial life.These stars are known as "Goldilocks stars" as they emit enough radiation in the non-UV ray spectrum [1] to provide a temperature that allows liquid water to exist on the surface of a planet; they also remain stable in the main sequence longer than the Sun by burning their hydrogen ...
The planet orbits a late orange dwarf star called Kepler-283, spectral type K7V, about 1,596 light years from Earth in the constellation of Cygnus. [5] Orbit.
K-type main-sequence stars are main-sequence stars (luminosity class V) of spectral type K. Subcategories. This category has the following 3 subcategories, out of 3 ...
Excluding colour-contrast effects in dim light, in typical viewing conditions there are no green, cyan, indigo, or violet stars. "Yellow" dwarfs such as the Sun are white, "red" dwarfs are a deep shade of yellow/orange, and "brown" dwarfs do not literally appear brown, but hypothetically would appear dim red or grey/black to a nearby observer.
Dwarf star with no other qualification generally refers to a main-sequence star, a star of luminosity class V: main-sequence stars (dwarfs). Example: Achernar (B6Vep) [2] Red dwarfs are low-mass main-sequence stars. Yellow dwarfs are main-sequence (dwarf) stars with masses comparable to that of the Sun. Orange dwarfs are K-type main-sequence stars.
Gliese 673 is an orange dwarf star in the constellation Ophiuchus. It has a stellar classification of K7V. [2] Main sequence stars with this spectra have a mass in the range of 60–70% of solar mass (M ☉) (comparable to the members of the binary star system 61 Cygni). This star is relatively near the Sun at a distance of about 25 light-years ...
HD 21749 is a K-type main sequence star (orange dwarf) with a spectral type of K4.5V, [3] indicating it is smaller and cooler than the Sun. It is estimated to have a mass of 0.73 M ☉, a radius of 0.70 R ☉, and a luminosity of 0.20 L ☉.