The Nine Planets Solar System Tour

Nine Planets - system Tour
This web site is an summary of the history, mythology and current knowledge base of the planets, moons and different objects in our system. every page has our text and NASA's pictures, some have sounds and films, most offer references to extra connected data.

Solar System

Please visit our natural philosophy news section which provides news, notes and general observations, we tend to even have Associate in Nursing interactive tour of the system (loads in an exceedingly new window)

All planets will be seen with alittle telescope or binoculars and personal observatories still offer helpful data. however the chance of obtaining up shut with celestial body artificial satellite has revolutionized planetary science. little or no of this website would are doable while not the programme.

Nevertheless, there is a heap that you {just} will see with terribly modest instrumentation or perhaps with just your own eyes. Past generations of individuals found beauty and a way of marvel considering the night sky. Today's knowledge base more enhances and deepens that have. And you'll share in it by merely going get in the evening and looking out up.



The Sun

The Sun is far and away the most important object within the system. It contains quite ninety nine.8% of the overall mass of the system (Jupiter contains most of the rest). it's typically aforesaid that the Sun is Associate in Nursing "ordinary" star. that is true within the sense that there ar several others almost like it. however there ar more smaller stars than larger ones; the Sun is within the high 100% by mass. The median size of stars in our galaxy is perhaps but 0.5 the mass of the Sun.

Jupiter

Jupiter is that the fourth brightest object within the sky (after the Sun, the Moon and Venus). it's been best-known since prehistoric times as a bright "wandering star". however in 1610 once stargazer 1st pointed a telescope at the sky he discovered Jupiter's four giant moons Io, Europa, Ganymede and Galilean satellite (now called the Galilean moons) and recorded their motions back and forth around Jupiter.

Mercury

In classical mythology Mercury is that the god of commerce, travel and larceny, the Roman counterpart of the Greek god Hermes, the courier of the Gods. the earth most likely received this name as a result of it moves therefore quickly across the sky. Mercury has been best-known since a minimum of the time of the Sumerians (3rd millennium BC).




The IAU modified the definition of "planet" so Pluto not qualifies. There ar formally solely eight planets in our system. after all this alteration in language doesn't have an effect on what is truly out there. In the end, it is not vital however we tend to classify the varied objects in our system. what's necessary is to find out regarding their physical nature and their histories.

Planet Order from the Sun; Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus and Neptune

Our information of our system is intensive however it's faraway from complete. a number of the worlds have not even been photographed up shut. The 9 Planets is an summary of what we all know nowadays. we tend to ar still exploring, way more remains to come:

We shall not stop from exploration, and also the finish of all our exploring are to arrive wherever we tend to started and grasp the place for the primary time.
-- T. S. Eliot
Other instructional Resources & Notes

Astronomy image of the day
For a full list of contents please see here.
For data on earth science please visit geographics. amaze your eyes with illusions
Solar system tour courtesy of system Scope