A proposed alternative to a black hole whose collapse continually slows down, and that does not form an event horizon

(programming) Any programming language that encapsulates the state and operations inside objects that support inheritance.

(astronomy) A star that contains a core made from another star. It is formed when a neutron star collides with a star, typically a red giant or supergiant, and the neutron star is swallowed by the red giant star.

plural of object request broker

plural of object-oriented language

(category theory) An object which has a distinguished global element (which may be called z, for “zero”) and a distinguished endomorphism (which may be called s, for “successor”) such that iterated compositions of s upon z (i.e., sⁿ∘z) yields other global elements of the same object which correspond to the natural numbers (sⁿ∘z↔n). Such object has the universal property that for any other object with a distinguished global element (call it z’) and a distinguished endomorphism (call it s’), there is a unique morphism (call it φ) from the given object to the other object which maps z to z’ (𝜙∘z=z') and which commutes with s; i.e., 𝜙∘s=s'∘𝜙.

(astronomy) Synonym of Kuiper belt object

Synonym of unidentified submerged object

An unidentified object submerged in water, not necessarily of paranormal origin.

(astronomy) Any trans-Neptunian object whose orbit is wholly within the scattered disc.