KClass

Kclass is a term used in several unrelated fields to denote a classification or designation, rather than a single entity. The form and capitalization vary (Kclass, K-class, or K class) depending on the context.

In astronomy, K-class or K-type stars are a spectral class in the Morgan–Keenan (MK) classification. They have surface temperatures roughly 3,900 to 5,200 K, giving them orange hues. They are cooler than the Sun and occupy a middle position in stellar size and luminosity. Many K-type stars host exoplanets.

Historically, the Royal Navy operated a class of submarines designated K-class during the First World War. Built in the 1910s, these steam-powered submarines were intended for high-speed surface running and rapid underwater operations, but they were plagued by safety issues and suffered several accidents.

In education, K class commonly denotes kindergarten or early primary grade levels in several countries. The term is used for classes meant for young children, typically around five to six years old.

Beyond these domains, K-class labels appear as model or product designations in various industries, including transport and electronics, reflecting naming conventions rather than shared attributes. Because the meaning of Kclass is context dependent, readers should consult domain-specific sources to determine its precise sense in a given article.