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| Lin | 10th January 2000 | |||||||||||||||||||||||||||||||||||||||||||||
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Need info. for school report. What would it be like on the planet Mercury:
It isn't really possible to smell or taste the air on Mercury, because it hasn't got an atmosphere like here on Earth. Any spacecraft made to land on Mercury would have to be able to withstand the large extremes in temperature.
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| MnM3511 | 8th January 2000 | |||||||||||||||||||||||||||||||||||||||||||||
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Hi. This is a really neat website. My son is in kindergarten and learning about the solar system. We thought it would be fun to explore online to find out more. Thanks for all of the information you have provided.
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| Katigrl82 | 5th January 2000 | |||||||||||||||||||||||||||||||||||||||||||||
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What is the diameter (in miles) of all nine planets in the solar system?
Roughly the diameters are:
These values are the diameters at the equator of each of the planets. These are not necessarily
the same as the diameter from pole to pole because the rotation of the planets causes some of
the planets to be squashed slightly.
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| JAMI | 5th January 2000 | |||||||||||||||||||||||||||||||||||||||||||||
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Can you tell me about the orbits of the Earth and the Moon for my class? Thank you.
The Earth orbits the Sun at a speed of 30,000 metres per second at a distance of 150
million kilometres. The orbit is not a perfect circle, instead it is slightly squashed,
over the course of a year the Earth moves slightly closer and further from the Sun by
around 1.5%.
The Moon is around 380,000 kilometres from Earth. It goes round the Earth once every
27.3 days. The Moon's orbit is also squashed - its orbit varies by around 5% as it orbits
around us. The Moon's proximity to us is the main cause of the Earth's tides, which arise
because of the gravitational effect of the Moon as it orbits.
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| Jessica | 5th January 2000 | |||||||||||||||||||||||||||||||||||||||||||||
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Hi. I'm working on a extremely hard math project due in a week or so. I need to find out what the surface area of Earth is and what the distance from Neptune to Mercury is (in scientic notation) If you know the anwser or know where I could find the anwser it would be of great help to me! Thank you.
Here's a few hints to get you started:
The formula for surface area is A = 4 x PI x r x r where r is the radius of the
sphere, PI = 3.14 and A the surface area. If you used metres as the units for
the radius then the answer would be in metres squared.
The distance between Neptune and Mercury changes as the planets orbit, but because
Mercury is so much closer to the Sun than Neptune, it won't change by all that much.
The average distance between Neptune and Mercury is roughly equal to the distance
between Neptune and the Sun.
To use scientific notation each decimal place counts as one power of 10 so
3,000,000 km is equal to 3 x 106 km, and 4,530,000,000 is the same as
4.53 x 109. Good luck!
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| Infp74 | 3rd January 2000 | |||||||||||||||||||||||||||||||||||||||||||||
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I enjoy reading about the solar system and I've found your site very informative and to the point. Do you have a degree in astronomy or something? Thanks again and happy new year. I'm in my first year of my Ph.D. in astronomy at the University of Nottingham, England.
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| Joe | 3rd January 2000 | |||||||||||||||||||||||||||||||||||||||||||||
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Is it true all the planets will be aligned this year, on May 5. If so what does it mean to us, weather and tide wise. The planets are so far away that the effect on Earth will be practically nothing. Take a look at this question for more information and links.
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| TM4814 | 3rd January 2000 | |||||||||||||||||||||||||||||||||||||||||||||
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Hello. Loved your site. It was a great way to see the distance between the Sun and planets. Awesome.
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| peace88815 | 30th December 1999 | |||||||||||||||||||||||||||||||||||||||||||||
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Is there another planet after Pluto in our galaxy?
There are certainly lots of other planets in our galaxy, but because they
don't give off light of there own like stars, we are only just starting to
discover them. Take a look at this site for information on
extra-solar planets.
As for in our solar system, there has recently been a suggestion that there
may me a huge planet orbiting around the Sun and a tremendously large
distance. Look at this news article
for more details.
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| Ell | 30th December 1999 | |||||||||||||||||||||||||||||||||||||||||||||
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Hi, I am 12 years old and I just got a telescope. Its been cloudy at night lately. so the moon hasn't been out. I was wondering if you know when you can see some of the planets. Also, would my telescope be able to get a good view? I have a 402 power telescope, is this a good one for beginner like me? Thanks. With a small telescope or even a good pair of binoculars you can see lots of interesting things in our solar system, including detail on the Moon, the phases of Venus, the moons of Jupiter and maybe even Saturn's rings. Take a look at the Skywatching Centre for details of what's going on in the night sky now.
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