- What is meant by the term "geologically dead" body of the solar system?
-How far is Mars from the sun in our solar system in AU?
- How long is a year on mars?
- What is magnitude?
- What is pulse?
-What is the brightness of mars as seen from Earth?
- What is the average day time and night time temperature on Mars?
- What is UV radiation?
-What are the harmful effects of UV radiation?
- What are polar ice caps of Mars?
if you know ANY of these answers please tell me. our teacher just gave us the paper and said look it all up online. and im having some trouble.
please and thankyou!
2007-03-26 12:54:41 · 5 answers · asked by Emma B 1 in Science & Mathematics ➔ Astronomy & Space
A "geologically dead" body of the solar system means it has no geological activity such as earthquakes or volcanoes, because the core of the body is not in a magma state like it is here on Earth. The Moon is an example of a geologically dead body.
An A.U. is an Astronomical Unit equal to the distance from the sun to the earth. So Mars is 1.5237 A.U. from the sun.
The current magnitude of Mars, as seen from Earth, is 1.1 magnitude. Magnitude is a logrithmic scale used to number the brightness of objects in the sky. A one degree of magnitude is 2.512 times as bright as two degrees of magnitude. The lower the number, the higher the brightness
You can get all of the other answers about Mars at the following web site: http://www.solarviews.com/eng/mars.htm
2007-03-26 13:27:48 · answer #1 · answered by Twizard113 5 · 0⤊ 0⤋
UV (ultraviolet)radiation is short wavelength radiation which you can't see. If you could see it, like some insects can, it would be just past the violet part of a rainbow. It is produced by very hot objects, like the Sun and like a welding torch. It makes your eyes smart, which is why a welder needs goggles to screen it out. It can cause cataracts in your eyes and skin cancer. Most of the UV light from the Sun is stopped by a thin layer of ozone high in the atmosphere, but man-made chemicals have destroyed some of this ozone, and where I live in NZ, UV levels are higher than normal, so you need to avoid going out in the Sun too much. A treaty called the Montreal Protocol was signed a few years ago.The countries which manufacture the chemicals which destroy ozone agreed to stop making them. UV radiation causes suntan and sunburn. Mars is colder than Earth. The warmest it ever gets is about 20 Celsius, but in winter, especially near the poles, it gets colder than Antarctica. The polar ice caps there are probably frozen carbon dioxide, not water. A year on Mars is nearly two Earth years. Magnitude is a measure of how bright a star or planet is. The smaller the number, the brighter it is. The brightest object in the sky, the Sun, has a magnitude of about minus 26. The faintest star you can see without a telescope has a magnitude of about 4 or 5. Mars is about 1.5 astronomical units from the Sun. That means it is about 1.5 times as far from the Sun as we are.
2007-03-26 13:33:02 · answer #2 · answered by zee_prime 6 · 0⤊ 0⤋
Mars is between 1.6 and 1.3 AUs from the Sun.
A year on Mars is 687 Solar days (or Sols).
Magnitude is a logrithmic measurement of the brightness. The lower the number, the brighter the object. The Sun, for example, is Magnitude -27.
Pulse? Could you check this term?
Mars varies between Magnitude 2.0 and Magnitude 5.0.
On the equator of Mars, at Noon the high temperature is around -25 C. The temperatire can fall as low as -100 C at night (or even lower at the poles(.
UV (or ultraviolet) radiation is a frequency of light just below what the human eye can see.
UV radiation can cause sunburns, and mutations of skin cells into carcinomas (skin cancer).
The polar ice caps are a mixture of CO2, CO, and H2O in their solid forms.
2007-03-26 13:24:30 · answer #3 · answered by edward_otto@sbcglobal.net 5 · 0⤊ 0⤋
Here is a link all about the Solar System!!! I'm sorry if it don't help.............i tried looking it up in my science books, but didn't find anything.........
2007-03-26 13:06:55 · answer #4 · answered by colton1499 2 · 0⤊ 1⤋
http://en.wikipedia.org/wiki/Mars
http://en.wikipedia.org/wiki/Apparent_magnitude
http://en.wikipedia.org/wiki/UV_radiation
hope this helps, I could answer most myself, but my answers wouldn't be very scientific-smart sounding. :) Now on to my own homework....
2007-03-26 13:02:32 · answer #5 · answered by Anonymous · 0⤊ 1⤋