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In this map of the Observable Universe, objects appear enlarged to show their shape. From left to right celestial bodies are arranged according to their proximity to the Earth. This horizontal (distance to Earth) scale is logarithmic.
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 when referring to the frozen nucleus of ice and dust, and an object when describing the entire comet with its ...
Euler diagram showing the types of bodies orbiting the Sun. The following is a list of Solar System objects by orbit, ordered by increasing distance from the Sun.Most named objects in this list have a diameter of 500 km or more.
For example, if a TNO is incorrectly assumed to have a mass of 3.59 × 10 20 kg based on a radius of 350 km with a density of 2 g/cm 3 but is later discovered to have a radius of only 175 km with a density of 0.5 g/cm 3, its true mass would be only 1.12 × 10 19 kg.
It is located at the celestial South Pole. King Ghidorah Supercluster (2022) 1,300,000,000 [19] Consists of at least 15 clusters plus other interconnected filaments. It is the most massive galaxy supercluster discovered so far. [19] Big Ring (2024) 1,300,000,000 Made up of galaxy clusters. (Theoretical limit) 1,200,000,000
This is a list of the brightest natural objects in the sky.This list orders objects by apparent magnitude from Earth, not anywhere else.This list is with reference to naked eye viewing; all objects are listed by their visual magnitudes, and objects too close together to be distinguished are listed jointly.
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Examples Year of record Modern light travel distance Object Type Detected using First record by (1) 964: 2.5 [224] Andromeda Galaxy: Spiral galaxy: naked eye: furthest object visible with the naked eye, but first recorded by Abd al-Rahman al-Sufi [225] 1654: 3: Triangulum Galaxy: Spiral galaxy: refracting telescope: Giovanni Battista Hodierna ...