Solar System
Title: Solar System
Category: /Science & Technology
Details: Words: 862 | Pages: 3 (approximately 235 words/page)
Solar System
Category: /Science & Technology
Details: Words: 862 | Pages: 3 (approximately 235 words/page)
The Sun is an ordinary G2 star, one of more than 100 billion stars in our galaxy.
diameter: 1,390,000 km.
mass: 1.989e30 kg
temperature: 5800 K (surface)
15,600,000 K (core)
The Sun is by far the largest object in the solar system. It contains more than 99.8% of the total
mass of the Solar System (Jupiter contains most of the rest).
The Sun is personified in many mythologies: the Greeks called it Helios and the Romans called it
Sol.
The
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number of smaller objects orbiting the Sun. (Exactly which
bodies should be classified as planets and which as "smaller objects" has been the source of some
controversy, but in the end it is really only a matter of definition.)
Distance Radius Mass
Planet (000 km) (km) (kg) Discoverer Date
--------- --------- ------ ------- ---------- -----
Mercury 57,910 2439 3.30e23
Venus 108,200 6052 4.87e24
Earth 149,600 6378 5.98e24
Mars 227,940 3397 6.42e23
Jupiter 778,330 71492 1.90e27
Saturn 1,426,940 60268 5.69e26
Uranus 2,870,990 25559 8.69e25 Herschel 1781
Neptune 4,497,070 24764 1.02e26 Galle 1846
Pluto 5,913,520 1160 1.31e22 Tombaugh 1930