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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 ...
When 54 Piscium B was directly imaged by NASA's Spitzer Space Telescope, it was shown that the brown dwarf had a projected separation of around 476 astronomical units from the primary star. [11] 54 Piscium B was the first brown dwarf to be detected around a star with an already known extrasolar planet (based on radial velocity surveys).
K2-148b is a confirmed super-Earth, probably rocky, closely orbiting a small orange dwarf star. It is the innermost of three Super-Earths around the star K2-148, which is in a wide binary pair with the M0.5V red dwarf EPIC 220194953. K2-148b is the smallest planet of the system, at about a third larger than Earth, and could be terrestrial in ...
The planet orbits the faint orange dwarf star [a] KOI-5715, which has a spectral type of K3V. [8] It is located approximately 2,964 light-years from Earth in the constellation of Cygnus. [ 9 ] The effective temperature of the star is roughly 5123 K, [ 1 ] relatively cooler than the Sun's temperature of 5780 K. [ 10 ] KOI-5715 is also smaller ...
This page was last edited on 5 February 2011, at 04:50 (UTC).; Text is available under the Creative Commons Attribution-ShareAlike 4.0 License; additional terms may apply.
HD 189733, also catalogued as V452 Vulpeculae, is a binary star system 64.5 light-years (19.8 parsecs) away in the constellation of Vulpecula (the Fox).The primary star is suspected to be an orange dwarf star, [2] while the secondary star is a red dwarf star. [5]
Kepler-283 c is an exoplanet orbiting the K-type star Kepler-283 every 93 days in the circumstellar habitable zone, discovered by the Kepler space telescope in 2014. [ 4 ] Characteristics
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