astronomical object

Also known as celestial body, celestial object, astronomical body, astronomical objects, celestial bodies, celestial objects, astronomical bodies, object

physical body of astronomically-significant size, mass, or role, naturally occurring in a universe

AI overview

An astronomical object is a naturally occurring body in space—like a star, planet, or galaxy—that is large or massive enough to be scientifically important. These objects matter because studying them helps us understand the structure and history of the universe, and in some cases, whether life might exist elsewhere.

AI-generated from the Wikipedia summary — may contain errors.

Research

11,666 papers

Fungal impacts on Earth's ecosystems.ReviewNature · 2025Case NT, Gurr SJ, Fisher MC et al.DOI: 10.1038/s41586-024-08419-4
COSMICA: A Novel Dataset for Astronomical Object Detection with Evaluation Across Diverse Detection Architectures.Journal of imaging · 2025Piratinskii E, Rabaev IDOI: 10.3390/jimaging11060184
Reconstructing Early Microbial Life.ReviewAnnual review of microbiology · 2024Kaçar BDOI: 10.1146/annurev-micro-041522-103400
Into the deep.Science (New York, N.Y.) · 2026Dolgin EDOI: 10.1126/science.aef8481
Where the microbes aren't.ReviewFEMS microbiology reviews · 2025Cockell CSDOI: 10.1093/femsre/fuae034
The nature of the last universal common ancestor and its impact on the early Earth system.Nature ecology & evolution · 2024Moody ERR, Álvarez-Carretero S, Mahendrarajah TA et al.DOI: 10.1038/s41559-024-02461-1
The evolution of Gaia(s).ReviewPhilosophical transactions of the Royal Society of London. Series B, Biological sciences · 2025Lenton TMDOI: 10.1098/rstb.2024.0095
Sleep Away from Earth.ReviewSleep medicine clinics · 2025Flynn-Evans EE, Braun AM, Jansen RADOI: 10.1016/j.jsmc.2024.10.003

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Wikidata facts

Image: IC 1687 SDSS.jpg

Show 3 more facts

Commons category: Astronomical objects
P8168: Q252671
exact match: purl.obolibrary.org/obo/ENVO_01000799

Sources (3)

via Wikidata · CC0

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Article

An astronomical object, celestial object, stellar object or heavenly object is a naturally occurring physical entity, association, or structure that exists within the universe. In astronomy, the terms object and body are often used interchangeably. However, an astronomical body, celestial body, or heavenly body is a single, tightly bound, contiguous physical object, while an astronomical or celestial object admits a more complex, less cohesively bound structure, which may consist of multiple bodies or even other objects with substructures.

Examples of astronomical objects include planetary systems, star clusters, nebulae, and galaxies, while asteroids, moons, planets, and stars are astronomical bodies. A comet may be identified as both a body and an object: It is a body in reference to the frozen nucleus of ice and dust, and an object in reference to the entire comet with its diffuse coma and tail.