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Planet Sun Star Comparison
- Thread starter peddy
- Start date
Sun/Earth Comparison
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Bulk parameters
Sun Earth Ratio (Sun/Earth)
Mass (1024 kg) 1,989,100. 5.9736 333,000.
GM (x 106 km3/s2) 132,712. 0.3986 333,000.
Volume (1012 km3) 1,412,000. 1.083 1,304,000.
Volumetric mean radius (km) 696,000. 6371. 109.2
Mean density (kg/m3) 1408. 5515. 0.255
Surface gravity (eq.) (m/s2) 274.0 9.78 28.0
Escape velocity (km/s) 617.6 11.19 55.2
Ellipticity 0.00005 0.0034 0.015
Moment of inertia (I/MR2) 0.059 0.3308 0.178
Visual magnitude V(1,0) -26.74 -3.86 -
Absolute magnitude +4.83
Luminosity (1024 J/s) 384.6
Mass conversion rate (106 kg/s) 4300.
Mean energy production (10-3 J/kg) 0.1937
Surface emission (106 J/m2s) 63.29
Spectral type G2 V
Model values at center of Sun:
Central pressure: 2.477 x 1011 bar
Central temperature: 1.571 x 107 K
Central density: 1.622 x 105 kg/m3
Yep - it's 'bigger' by most measures, but sure don't see much of it this side of the planet in December :thumbsdown:
as for OP post - fascintating until the last few seconds when the presenter went off on some tangent.
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Bulk parameters
Sun Earth Ratio (Sun/Earth)
Mass (1024 kg) 1,989,100. 5.9736 333,000.
GM (x 106 km3/s2) 132,712. 0.3986 333,000.
Volume (1012 km3) 1,412,000. 1.083 1,304,000.
Volumetric mean radius (km) 696,000. 6371. 109.2
Mean density (kg/m3) 1408. 5515. 0.255
Surface gravity (eq.) (m/s2) 274.0 9.78 28.0
Escape velocity (km/s) 617.6 11.19 55.2
Ellipticity 0.00005 0.0034 0.015
Moment of inertia (I/MR2) 0.059 0.3308 0.178
Visual magnitude V(1,0) -26.74 -3.86 -
Absolute magnitude +4.83
Luminosity (1024 J/s) 384.6
Mass conversion rate (106 kg/s) 4300.
Mean energy production (10-3 J/kg) 0.1937
Surface emission (106 J/m2s) 63.29
Spectral type G2 V
Model values at center of Sun:
Central pressure: 2.477 x 1011 bar
Central temperature: 1.571 x 107 K
Central density: 1.622 x 105 kg/m3
Yep - it's 'bigger' by most measures, but sure don't see much of it this side of the planet in December :thumbsdown:
as for OP post - fascintating until the last few seconds when the presenter went off on some tangent.