Jupiter radius

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Jupiter radius or Jovian radius (R_J or R_Jup) is the distance equal to the radius of planet Jupiter. It has a value of 71,492 km (44,423 mi), or 11.2 Earth radii (R_?) (one Earth radius equals 0.08921 R_J). Jupiter radius is a unit of length used in astronomy to describe the radii of gas giants and some extrasolar planets. It is also used in describing brown dwarfs.

In 2015, the International Astronomical Union defined the nominal equatorial Jovian radius to remain constant regardless of subsequent improvements in measurement precision of R_J. This constant is defined as exactly:

${\displaystyle {\mathcal {R}}_{\mathrm {eJ} }^{\mathrm {N} }}$ = 7.1492×10⁷ m

Similarly, the nominal polar Jovian radius is defined to be exactly:

${\displaystyle {\mathcal {R}}_{\mathrm {pJ} }^{\mathrm {N} }}$ = 6.6854×10⁷ m

These values correspond to the radius of Jupiter at 1 bar of pressure. The common usage is to refer to the equatorial radius, unless the polar radius is specifically needed.

Video Jupiter radius

Comparison

For comparison, one Solar radius is equivalent to:

• 400 Lunar radius(R_L)
• 109 Earth radius (R_?)
• 9.735 Jupiter radius (R_J)

Maps Jupiter radius

References

Source of the article : Wikipedia