Hello, you have come here looking for the meaning of the word
R☉. In DICTIOUS you will not only get to know all the dictionary meanings for the word
R☉, but we will also tell you about its etymology, its characteristics and you will know how to say
R☉ in singular and plural. Everything you need to know about the word
R☉ you have here. The definition of the word
R☉ will help you to be more precise and correct when speaking or writing your texts. Knowing the definition of
R☉, as well as those of other words, enriches your vocabulary and provides you with more and better linguistic resources.
Translingual
- The R is not always italic.
Etymology
- R (radius) and subindex ☉ (sun).
Symbol
R☉
- (astronomy) solar radius: a unit of distance, equal to the radius of the Sun: 7×108 m or 110 R🜨.
- The inner edge of the disc is at 317 R☉, well outside the inner binary orbit.
- (sum of parts) The radius of the Sun specifically
Usage notes
- R☉ may be distinguished from r☉, the latter not a unit of measurement but meaning radial distance from the sun (heliocentric distance). Unlike the unit R☉, r☉ is used specifically for our sun; for another star, r＊ or r✶ is likely to be used.