![View of the dust disc around the young star HD 100546](https://upload.wikimedia.org/wikipedia/commons/5/52/View_of_the_dust_disc_around_the_young_star_HD_100546.jpg)
Below is a list of the largest
exoplanet
An exoplanet or extrasolar planet is a planet outside the Solar System. The first possible evidence of an exoplanet was noted in 1917 but was not recognized as such. The first confirmation of detection occurred in 1992. A different planet, init ...
s so far discovered, in terms of physical size, ordered by radius.
Caveats
This list of extrasolar objects may and will change over time because of inconsistency between journals, different methods used to examine these objects and the already extremely hard task of discovering exoplanets, or any other large objects for that matter. Then there is the fact that these objects might be
brown dwarf
Brown dwarfs (also called failed stars) are substellar objects that are not massive enough to sustain nuclear fusion of ordinary hydrogen ( 1H) into helium in their cores, unlike a main-sequence star. Instead, they have a mass between the most ...
s,
sub-brown dwarfs, or not exist at all. Because of this, this list only cites the best measurements to date and is prone to change. Remember, these objects are not stars, and are quite small on a universal or even stellar scale.
List
The sizes are listed in units of
Jupiter radii (71,492 km). All planets listed are larger than 1.7 times the size of the largest
planet
A planet is a large, rounded astronomical body that is neither a star nor its remnant. The best available theory of planet formation is the nebular hypothesis, which posits that an interstellar cloud collapses out of a nebula to create a you ...
in the Solar System,
Jupiter
Jupiter is the fifth planet from the Sun and the List of Solar System objects by size, largest in the Solar System. It is a gas giant with a mass more than two and a half times that of all the other planets in the Solar System combined, but ...
. Some planets that are smaller than have been included for the sake of comparison.
See also
*
List of smallest exoplanets
Below is a list of the smallest exoplanets so far discovered, in terms of physical size, ordered by radius. Some of these are unconfirmed and/or controversial.
List
The sizes are listed in units of Earth radii (). All planets listed are smaller ...
*
List of largest cosmic structures
This is a list of the largest cosmic structures so far discovered. The unit of measurement used is the light-year (distance traveled by light in one Julian year; approximately 9.46 trillion kilometres).
This list includes superclusters, galaxy ...
*
List of largest galaxies
This is a list of largest galaxies known, sorted by order of increasing major axis diameters. The unit of measurement used is the light-year (approximately 9.46 kilometers).
Overview
Galaxies are vast collections of stars, planets, nebulae ...
*
List of largest nebulae
Below is a list of the largest nebulae so far discovered, ordered by actual size (not angular diameter). This list is prone to change because of inconsistencies between studies, the great distances of nebulae from our stellar neighbourhood, and t ...
*
List of largest known stars
Below are lists of the largest stars currently known, ordered by radius and separated into categories by galaxy. The unit of measurement used is the radius of the Sun (approximately ).
The angular diameters of stars can be measured directly us ...
*
Lists of astronomical objects
This is a list of lists, grouped by type of astronomical object.
Solar System
* List of Solar System objects
* List of gravitationally rounded objects of the Solar System
* List of Solar System objects most distant from the Sun
* List of So ...
*
List of most massive exoplanets
*
List of most massive stars
This is a list of the most massive stars that have been discovered, in solar masses ().
Uncertainties and caveats
Most of the masses listed below are contested and, being the subject of current research, remain under review and subject to const ...
References
{{Exoplanet
Largest
Large means of great size.
Large may also refer to:
Mathematics
* Arbitrarily large, a phrase in mathematics
* Large cardinal, a property of certain transfinite numbers
* Large category, a category with a proper class of objects and morphisms (o ...
Exoplanets, largest