Our moon globe uses NASA’s data, dipicting the whole surface of our moon, this globe is made in the traditional way of 12 hand papered gores applied to a plaster sphere. The example is supplied on a small hand turned base made from reclaimed timber.
We believe this small lunar globe will be most useful in demonstrating eclipses, phases of the moon etc. It is interesting to note that the proportional distance between a 12″ diameter Earth and this moon would be an impressive 30ft! An informative leaflet will be supplied with all globe listing facts and experiments that can be undertaken.
Prices for packing and delivery vary depending where are. If you are interested in any of our globes on our web site, please email us the reference number(s) and state which country you live in and if you require a shipping quote.
The moon is 384,400 km from Earth (about 30 Earth diameters) and is 3,476 km in diameter.
The Earth’s diameter is 3.67 times as big as the Moon’s, and the Earth has 50 times the volume of the Moon. The volume of the Earth is 1.0832_1021 m_, The volume of the Moon is 0.02196_1021 m_ ( 1/50 0f Earth’s volume).
In our solar system, the Earth’s orbital plane around the Sun is known as the ecliptic, and the Earth’s axial tilt is (officially) called the obliquity of the ecliptic. (about 23.45 degrees in 2006) In formulas it is abbreviated with the Greek letter _. The angle of the Moon’s orbit to the plane of the ecliptic is 5.145 degrees.
The Earth spins on its own axis at a rate of 365.256 revs/orbit (365.256 days/year) The Moon’s Orbital period. The synodic rotation of the Moon (motion relative to the Sun) is 29.53059 days. As it rotates the Earth we see different amounts of the Moon lit by the Sun. These are called the phases of the moon. New moon É waxing crescent É first quarter (half moon) É waxing gibbous É full moon É waning gibbous É third quarter (half moon) É waning crescent and then É New moon.
The Moon spins on its own axis at a rate of exactly 1 revolution per orbit, so we always see the same side of the Moon when we look up. The moon’s orbit is an ellipse, an ellipse has two foci and the earth is at one of them. As the moon travels round its elliptical orbit it moves nearer to and further away from the Earth. At perigee (the closest position – 360,000 km away) the Moon has a visual width of 33 arc-minutes. At apogee (the furthest position – 405,000 km away) it has a width of 29 arc-minutes. Because of the axial tilt of the Earth and the tilt of the Moon’s orbit, the Moon is sometimes high in the sky, at other times it is only just above the horizon. Highest and lowest positions in the sky? Highest = (90-your latitude) +(23.45 + 5.15) from the horizon Lowest = (90-your latitude) Ð (23.45 + 5.15) from the horizon e.g. from London, Highest is (90-51.50) +(23.45 + 5.15) from the horizon = 67.3 degrees Lowest = (90-51.50) Ð (23.45 + 5.15) from the horizon = 9.9 degrees.
Compiled by Peter Grimwood