A planetary-mass object (PMO), planemo, or planetary body (sometimes referred to as a world) is, by geophysical definition of celestial objects, any celestial...
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A planetary-mass moon is a planetary-mass object. They are large and ellipsoidal (sometimes spherical) in shape. Moons may be in hydrostatic equilibrium...
30 KB (2,249 words) - 17:01, 23 May 2025
Rogue planet (redirect from Interstellar planetary mass object)
free-floating planet (FFP) or an isolated planetary-mass object (iPMO), is an interstellar object of planetary mass which is not gravitationally bound to...
88 KB (8,637 words) - 16:41, 10 May 2025
In astronomy, planetary mass is a measure of the mass of a planet-like astronomical object. Within the Solar System, planets are usually measured in the...
27 KB (2,451 words) - 01:07, 19 May 2025
Jupiter-mass Binary Objects or JuMBOs are pairs of interstellar planetary-mass objects. They were discovered in the Orion Nebula Cluster by the James Webb...
9 KB (1,164 words) - 22:07, 12 February 2025
Dwarf planet (redirect from Planetary dwarf)
dwarf planets and dates of discovery A dwarf planet is a small planetary-mass object that is in direct orbit around the Sun, massive enough to be gravitationally...
101 KB (9,264 words) - 16:15, 20 April 2025
T dwarf (section Planetary-mass objects and exoplanets)
An object with the spectral type T (also called T dwarf or methane brown dwarf) is either a brown dwarf or young free-floating planetary-mass object. A...
53 KB (5,535 words) - 19:56, 11 May 2025
radii of these objects range over three orders of magnitude, from planetary-mass objects like dwarf planets and some moons to the planets and the Sun. This...
127 KB (6,198 words) - 12:26, 23 May 2025
L dwarf (section Planetary-mass objects and exoplanets)
An object with the spectral type L (also called L-dwarf) can be either a low-mass star, a brown dwarf or a young free-floating planetary-mass object. If...
35 KB (3,790 words) - 18:55, 2 May 2025
lists can be sorted according to an object's radius and mass and, for the most massive objects, volume, density, and surface gravity, if these values are...
258 KB (10,945 words) - 07:14, 28 May 2025
2M1207b is a planetary-mass object orbiting the brown dwarf 2M1207, in the constellation Centaurus, approximately 170 light-years from Earth. It is one...
20 KB (1,647 words) - 00:29, 25 April 2025
KPNO-Tau 12 (category Astronomical objects discovered in 2003)
12 (also called 2MASS J0419012+280248) is a low-mass brown dwarf or free-floating planetary-mass object that is surrounded by a protoplanetary disk, actively...
18 KB (1,708 words) - 09:49, 14 May 2025
and former stars similar to EF Eridani B, and can also include objects of planetary mass, regardless of their formation mechanism and whether or not they...
7 KB (881 words) - 13:21, 9 December 2024
Sub-brown dwarf (category Planetary-mass objects)
A sub-brown dwarf or planetary-mass brown dwarf is an astronomical object that formed in the same manner as stars and brown dwarfs (i.e. through the collapse...
11 KB (1,382 words) - 22:48, 15 March 2025
SIMP J013656.5+093347 (category 2MASS objects)
SIMP J013656.5+093347 (abbreviated SIMP0136) is a planetary mass object at 19.9 light-years from Earth in the constellation Pisces. It belongs to the...
13 KB (1,238 words) - 20:42, 31 May 2025
OTS 44 (category Free-floating substellar objects)
OTS 44 is a free-floating planetary-mass object or brown dwarf located at 530 light-years (160 pc) in the constellation Chamaeleon near the reflection...
8 KB (779 words) - 17:10, 12 May 2025
J1407b (category Planetary rings)
object that eclipsed the star must be substellar in mass (below 80 Jupiter masses), which means it could either be a brown dwarf or a planetary-mass object...
39 KB (3,923 words) - 01:58, 16 May 2025
An object with a spectral type Y (also called Y dwarf) is either a brown dwarf or a free-floating planetary-mass object. They have temperatures below around...
58 KB (5,877 words) - 11:46, 29 May 2025
PSO J318.5−22 (category WISE objects)
PSO J318.5−22 is an extrasolar object of planetary mass that does not orbit a parent star, it is an analog to directly imaged young gas giants. There is...
17 KB (1,527 words) - 00:16, 21 January 2025
Cha 110913−773444 (category Free-floating substellar objects)
J11151597+1937266, a relative nearby planetary-mass object with a disk KPNO-Tau 12, a low-mass brown dwarf or planetary-mass object with a disk Luhman, K. L; Adame...
4 KB (304 words) - 15:42, 21 December 2024
morpholino oligo, a type of molecule in molecular biology Planetary-mass object, a celestial object of size similar to a planet Prosopometamorphopsia, visual...
935 bytes (142 words) - 14:38, 13 May 2025
CFBDSIR 2149−0403 (category Free-floating substellar objects)
CFBDSIR J214947.2-040308.9) is a free-floating planetary-mass object or possibly a high-metallicity, low-mass brown dwarf in the constellation Aquarius. Originally...
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atmosphere or outer space. Planetary surfaces are found on solid objects of planetary mass, including terrestrial planets (including Earth), dwarf planets...
42 KB (3,834 words) - 20:19, 24 October 2024
Cat's Eye Nebula (redirect from Caldwell Object 6)
William Huggins, demonstrating that planetary nebulae were gaseous and not stellar in nature. Structurally, the object has had high-resolution images by...
25 KB (2,843 words) - 15:57, 3 April 2025
WISE 0855−0714 (category Astronomical objects discovered in 2013)
53 °F). It has an estimated mass between 3–10 Jupiter masses, which makes it a planetary-mass object below the 13 Jupiter mass limit for deuterium fusion...
27 KB (2,616 words) - 15:28, 19 May 2025
Double planet (section Mass ratios closer to 1)
satellite system where both objects are planets, or planetary-mass objects, and whose barycenter is external to both planetary bodies. Although up to a third...
18 KB (2,204 words) - 11:18, 24 May 2025
Ilaria; Apai, Dániel; Manara, Carlo Felice (2016-12-12). "A candidate planetary-mass object with a photoevaporating disk in Orion". The Astrophysical Journal...
383 KB (22,179 words) - 17:37, 30 May 2025
even other objects with substructures. Examples of astronomical objects include planetary systems, star clusters, nebulae, and galaxies, while asteroids...
29 KB (1,595 words) - 04:18, 3 May 2025
List of planet types (redirect from Planetary classification)
planet types by their mass, orbit, physical and chemical composition, or by another classification. Hypothetical astronomical object § Hypothetical planet...
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Brown dwarf (redirect from Planetary-mass brown dwarf)
substellar objects that have more mass than the biggest gas giant planets, but less than the least massive main-sequence stars. Their mass is approximately...
166 KB (18,158 words) - 02:52, 1 June 2025