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Protoplanet - Wikipedia
A protoplanet or planetary embryo is an astronomical body originated within a protoplanetary disk that has undergone internal melting to produce a ...
en.wikipedia.org
en.wikipedia.org
PROTOPLANET Definition & Meaning - Merriam-Webster
a hypothetical whirling gaseous mass within a giant cloud of gas and dust that rotates around a sun and is believed to give rise to a planet.
www.merriam-webster.com
www.merriam-webster.com
Protoplanet: Space Exploration Training
Real-world training for extreme environments, our team has over 20 years of experience conducting analogue studies in several extreme parts of the world.
www.protoplanet.co
www.protoplanet.co
protoplanet
ˈprotoplanet Astr. [f. proto- + planet n.1] A large diffuse body of matter in a solar or stellar orbit, postulated as a preliminary stage in the evolution of a planet.1949 Astrophysical Jrnl. CIX. 309 A simple model is therefore considered first, consisting of two spherical masses (‘protoplanets’) i...
Oxford English Dictionary
prophetes.ai
Hubble's Inside the Image: Protoplanetary Disks - YouTube
NASA's Hubble Space Telescope has captured stunning images of protoplanetary disks—dynamic, swirling structures of gas and dust surrounding ...
www.youtube.com
www.youtube.com
Protoplanet | Formation, Accretion, Solar System - Britannica
Protoplanet, in astronomical theory, a hypothetical eddy in a whirling cloud of gas or dust that becomes a planet by condensation during formation of a solar ...
www.britannica.com
www.britannica.com
Hints of an Ancient Protoplanet Inside of Earth | American Scientist
Theia is a hypothesized, Mars-sized protoplanet thought to have collided with the proto-Earth 4.5 billion years ago.
www.americanscientist.org
www.americanscientist.org
Protoplanets - Universe Today
Protoplanets are small celestial objects that are the size of a moon or a bit bigger. They are small planets, like an even smaller version of a dwarf planet.
www.universetoday.com
www.universetoday.com
Protoplanets - an overview | ScienceDirect Topics
Protoplanets are defined as compact masses that formed from the accumulation of material in a plate-like disk surrounding a newborn star, resulting from the ...
www.sciencedirect.com
www.sciencedirect.com
Rapid protoplanet formation in the outer Solar System recorded in a ...
This demonstrates that protoplanets beyond the snowline accreted, differentiated, and broke apart rapidly and concurrently with those in the inner Solar System.
www.nature.com
www.nature.com
Mesoplanet
See also
Asteroid
Centaur (minor planet)
Fusor (astronomy)
Protoplanet
Planetesimal
Brown dwarf
References
Isaac Asimov
Types of planet
Definition
wikipedia.org
en.wikipedia.org
A 'Big Whack' Formed the Moon and Left Traces Deep in Earth, a Study ...
Nov 1, 2023The most popular theory says that about 4.5 billion years ago, a Mars-size protoplanet slammed into Earth. Some of the resulting debris, tossed into orbit, coalesced to form the moon. This idea ...
www.nytimes.com
Dawn - NASA Science
Dawn was the first spacecraft to orbit two extraterrestrial destinations - the protoplanet Vesta and the dwarf planet Ceres, both in the asteroid belt beyond Mars. Follow Dawn on its journey from Earth to the asteroid belt with this simulation built with real mission data. NASA/JPL-Caltech. Dawn Stories ...
science.nasa.gov
AB Aurigae b
AB Aurigae b (or AB Aur b) is a directly imaged protoplanet embedded within the protoplanetary disk of the young, Herbig AeBe star AB Aurigae. The discovery paper matches the protoplanet's emission using a composite model consisting of a 2000–2500 K thermal component responsible for the CHARIS
wikipedia.org
en.wikipedia.org
HD 169142
Several protoplanet candidates have been suggested in the literature starting from 2014. This dust could be a circumplanetary disk or a dusty envelope around the protoplanet.
wikipedia.org
en.wikipedia.org