#steroid

• Ariadne — A famous character in Greek mythology, daughter of King Minos of Crete and Pasiphae, who helped Theseus kill the Minotaur and escape the Labyrinth by providing him with a ball of thread (Ariadne's thread). In astronomy, the term designates asteroid number 43 in the main belt; metaphorically, the name represents the symbol of a secure guide or an ingenious solution that allows an escape from an extremely complex situation.
• Ariadne — A proper name of Greek mythological origin (Ariadne), used in literary Romanian or international scientific contexts as a common noun or neologism to describe a guiding element, a structural rescue strategy, or a guiding thread within an extremely complex situation. In a specialized sense, the term identifies the butterfly genus 'Ariadne' from the Nymphalidae family or the main-belt asteroid 43 Ariadne.
• Arsinoe — A proper name of ancient Greek origin, historically borne by several famous queens and princesses of the Ptolemaic dynasty of ancient Egypt, notably Arsinoe II and Arsinoe IV (the sister of Cleopatra). In geography, the name designated various ancient cities in the Mediterranean basin renamed in honor of these sovereigns, while in modern science, the term identifies asteroid 404 Arsinoe from the main belt and a genus of fossil mammals from the Embrithopoda order (Arsinoitherium).
• Artemis — An adapted form or literary variant for Artemis, the goddess of the hunt, forests, wild animals, and the Moon in Greek mythology, twin sister of Apollo; (in astronomy) a designation attributed to certain celestial bodies, asteroids, or large planetary geological structures; (in biology) a name used regionally or scientifically in the classification of certain medicinal or aromatic plant species from the Artemisia family or aquatic organisms from the Artemia genus.
• Astérie — An old popular name or rare lexical regionalism used in isolation to name the starfish (a marine invertebrate of the Asteroidea class); the term represents a direct adaptation of the noun from the French language ('astérie') or classical Latin, preserved in old 19th-century natural history translations.
• Asteroid — A rocky or metallic celestial body, much smaller than a planet, orbiting the Sun, with most clustered in the main belt between Mars and Jupiter; as an adjective, it describes an object, organism, or structure exhibiting a stellar shape or star-like radial symmetry.
• Asteroidea — A major taxonomic class of marine invertebrates in the phylum Echinodermata, grouping all true species of starfish; they are characterized by a flat central disc body from which multiple radiate arms (typically five) extend symmetrically, covered by a calcareous exoskeleton and equipped with tube feet for locomotion.
• Astraea — The virgin goddess of innocence, purity, and justice in Greek mythology, daughter of Astraeus and Eos, considered the last immortal to leave Earth at the end of the Iron Age to seek refuge in the sky, where she became the constellation Virgo. In astronomy, it denotes 5 Astraea, a large main-belt asteroid discovered in 1845 by Karl Ludwig Hencke, and in zoology, it represents a genus of medium to large sea snails in the family Turbinidae.
• Atalante — A graphical variant or inflected form associated with the mythological heroine Atalanta. In astronomy, 'Atalante' (36 Atalante) is the name of a large, dark main-belt asteroid discovered in 1855 by astronomer Hermann Goldschmidt. The term also designates various historical naval ships, localities, or geographical features named in honor of the famous huntress from Hellenic legends.
• Aurelia — A classic feminine given name of Latin origin, derived directly from the Roman gentile name 'Aurelia', based on the etymon 'aureus' (golden, brilliant). The name carries nuances of nobility, purity, and solar splendor; in astronomy, it designates a large main-belt asteroid (419 Aurelia) discovered at the end of the 19th century.
• Baade — A proper surname of German origin, predominantly associated in scientific contexts with the astronomer Wilhelm Heinrich Walter Baade (1893–1960). His foundational contributions include defining the two distinct stellar populations (Population I and Population II), recalibrating cosmic distances by revising the Cepheid period-luminosity relation, and discovering major asteroids, with his name being given to the lunar crater Baade, asteroid 1501 Baade, and an observational window toward the galactic center.