Solar radius is a unit of distance used to express the size of stars in astronomy relative to the Sun. The solar radius is usually defined as the radius...

from the center to about 0.2 of solar radius (139,000 km; 86,000 mi). It is the hottest part of the Sun and of the Solar System. It has a density of 150...

objects of the Solar System and partial lists of smaller objects by observed mean radius. These lists can be sorted according to an object's radius and mass...

is the irradiance received at the Earth (solar constant) multiplied by the area of the sphere whose radius is the mean distance between the Earth and...

(Solar mass), R☉ (Solar radius) and L☉ (Solar luminosity). The Sun is a G-type main-sequence star that makes up about 99.86% of the mass of the Solar System...

roughly of solar radius. The first detailed description of a solar prominence was in 14th-century Laurentian Codex, describing the solar eclipse of May...

tachocline is located at a radius of at most 0.70 times the solar radius (measured from the core, i.e., the surface is at 1 solar radius), with a thickness of...

needed. For comparison, one Solar radius is equivalent to: 400 Lunar radius(RL) 109 Earth radius (R🜨) 9.955 Jupiter radius (RJ) Mamajek, E. E; Prsa, A;...

silicates and metals, the objects of the inner Solar System are relatively close to the Sun; the radius of this entire region is less than the distance...

Schwarzschild radius will increase more quickly than its physical radius. When a body of this density has grown to around 136 million solar masses (1.36 × 108 M☉)...

similarities to the rocky planets of the inner solar system. The fourth-largest asteroid, Hygiea (radius 216.5±4 km), is icy. The question remains open...

perhaps only one solar radius (approx. 700,000 km) above the photosphere, suggesting that some additional mechanism accelerates the solar wind away from...

paraboloidal one with focal length equal to half of the radius of curvature. Evacuated tube solar cookers are essentially vacuum sealed between two layers...

astronomical unit is used primarily for measuring distances within the Solar System or around other stars. It is also a fundamental component in the...

The Parker Solar Probe (PSP; previously Solar Probe, Solar Probe Plus or Solar Probe+) is a NASA space probe launched in 2018 with the mission of making...

gravitation G to derive the solar mass to be approximately 1.9885×1030 kg. Although the exact values for the luminosity, radius, mass parameter, and mass...

planet in the Solar System or the combined mass of two binary stars can be calculated in units of Solar mass directly from the orbital radius and orbital...

the radius ranges from a maximum of nearly 6,378 km (3,963 mi) (equatorial radius, denoted a) to a minimum of nearly 6,357 km (3,950 mi) (polar radius, denoted...

cover a very small fraction of the solar radius, and are evidently far too time-consuming to be included in general solar modeling. Extrapolation of an averaged...

Sun's surface. The solar wind elongates these loops to pointed tips which can extend a solar radius or more into the corona. During solar minimum, helmet...

solar radius. When a prominence is viewed against the Sun instead of space, it appears darker than the background. This formation is called a solar filament...

distance R / ℓ {\displaystyle R/\ell } , where R {\displaystyle R} is the solar radius. To good approximation, they obey the so-called deep-water-wave dispersion...

their own Hill sphere.[citation needed] Within the Solar System, the planet with the largest Hill radius is Neptune, with 116 million km, or 0.775 au; its...

rarely used. Instead, ad hoc non-metric units are used, such as the solar radius, astronomical units, light years, and parsecs; the astronomical unit...

discovered so far with radius calculated to be in excess of a thousand times the solar radius, and a luminosity of over 200,000 times the solar luminosity. If...

shows a 0.58 ± 0.05 solar mass (M☉), a 0.53 ± 0.04 solar radius (R☉), and temperature of 3900.0 K, making it half the mass and radius of the Sun, two-thirds...

A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby obscuring the view of the Sun from a small part of Earth, totally or partially...

galactic radii. It was found instead that it is metal poor inside the solar radius, but becomes more metal rich outside it. Additionally, recent observations...

}}}\right)^{1/2}\end{aligned}}} where R ⊙ {\displaystyle R_{\odot }} is the solar radius, and so forth. They can also be rewritten in terms of the surface area...

charge radius of a proton is about 0.84–0.87 fm (1 fm = 10−15 m). In 2019, two different studies, using different techniques, found this radius to be 0...