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Cosmological numbers
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17
Astronomy
Undergraduate 1
10/28/2014

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Cards

Term
Earth mass
Definition
5.97219x10^24 kg
Term
(Earth mass)/(Lunar mass)
Definition
81.3
Term
(Jupiter mass)/(Earth mass)
Definition
317.83
Term
(Solar mass)/(Earth mass)
Definition
332,946
Term
Earth's mean radius
Definition
about 6,371 kilometers or 3,959 mi
Term
Earth's mean diameter
Definition
12,742 km or 7,918 mi
Term
mean Solar radius
Definition
6.955×10^5 km
Term
Earh's circumference
Definition
Almost exactly 40,000 km because the metre was calibrated on this measurement, or 24,855 mi.
Term
Solar circumference
Definition
178,444 km
Term
AU: Astronomical Unit
Definition
1.4960×10^8 km or 9.2956×10^7 mi
~ 150,000,000 km or 93,000,000 mi
Term
Mercury's mean distance
from Sun
Definition
0.38709893 AU
Term
Venus's mean distance
from Sun
Definition
0.72333199 AU
Term
Mar's mean distance
from Sun
Definition
1.52366231 AU
Term
Jupiter's mean distance
from Sun
Definition
5.20336301 AU
Term
Saturn's mean distance
from Sun
Definition
9.53707032 AU
Term
Uranus's mean distance
from Sun
Definition
19.19126393 AU
Term
Neptune's mean distance
from Sun
Definition
30.06896348 AU
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