Physical constants used for the Homogeneous Studies

Constant	Value	Unit	Reference
Stefan-Boltzmann constant	5.670374 × 10^-8	W m^-2 K^-4	US National Institute of Standards and Technology (2022 constants)
Gravitational constant, G	6.67430 × 10^-11	m³ kg^-1 s^-1	US National Institute of Standards and Technology (2022 constants)
G times the mass of the Sun	1.32712444 × 10²⁰	m³ s^-2	IAU 2015 Resolution B3 (see Prsa et al., 2016)
Astronomical Unit	1.495978707 × 10¹¹	m	IAU 2012 Resolution B2 (see Prsa et al., 2016)
Radius of the Sun	6.957 × 10⁸	m	IAU 2015 Resolution B3 (see Prsa et al., 2016)
Luminosity of the Sun	3.828 × 10²⁶	W	IAU 2015 Resolution B3 (see Prsa et al., 2016)
Equatorial radius of Jupiter	7.1492 × 10⁷	m	2010 Astronomical Almanac
Solar mass divided by Jupiter mass	1.0473486 × 10³		JPL DE405 Ephemerides
Volume of Jupiter	1.43128 × 10²⁴	m³	NASA NSSDC Jupiter fact sheet

Constant	Value	Unit
Mass of the Sun	1.98841 × 10³⁰	kg
Surface gravity of the Sun	4.43807	log(c.g.s.)
Mean density of the Sun	1409.8	kg m^-3
Mass of Jupiter	1.89852 × 10²⁷	kg
Equatorial surface gravity of Jupiter	24.7916	m s^-2
Mean density of Jupiter	1326.45	kg m^-3

Last modified: 2025/12/30 John Southworth (Keele University, UK)