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Инструкция по эксплуатации Страница: 14

Meade polaris 90 мм Инструкция по эксплуатации онлайн [14/28] 159829

Meade polaris 114 мм Инструкция по эксплуатации онлайн [14/28] 159830

circular pattern around our Sun. Any

system of planets orbiting one or more

stars is called a solar system. Our Sun,

by the way, is a single, yellow dwarf

star. It is average as far as stars go and is a

middle aged star.

Beyond the planets are clouds of comets, icy

planetoids and other debris left over from the

birth of our sun. Recently astronomers have

found large objects in this area and they may

increase the number of planets in our solar

system.

The four planets closest to the Sun are rocky

and are called the inner planets. Mercury,

Venus, Earth and Mars comprise the inner

planets. Venus and Mars can be easily seen

in your telescope.

Venus is seen before dawn or after sunset,

because it is close to the Sun. You can

observe Venus going through crescent

phases. But you cannot see any surface

detail on Venus because it has a very thick

atmosphere of gas.

When Mars is close to the Earth, you can

see some details on Mars, and sometimes

even Mars’ polar caps. But quite often, Mars

is further away and just appears as a red dot

with some dark lines crisscrossing it.

Jupiter, Saturn, Uranus, Neptune and Pluto

comprise the outer planets. These planets,

except for Pluto, are made mostly of gases

and are sometimes called gas giants. If they

had grown much bigger, they may have

become stars. Pluto is made mostly of ice.

Jupiter is quite interesting to observe. You

can see bands across the face of Jupiter. The

more time you spend observing these bands,

the more details you will be able to see.

One of the most fascinating sights of Jupiter

are its moons. The four largest moons

are called the Galilean moons, after the

astronomer Galileo, who observed them for

the first time. If you’ve never watched the

Galilean moons in your telescope before,

you’re missing a real treat! Each night, the

moons appear in different positions around

the Jovian sky. This is sometimes called

the Galilean dance. On any given night,

you might be able to see the shadow of a

moon on the face of Jupiter, see one moon

eclipse another or even see a moon emerge

from behind Jupiter’s giant disk. Drawing

SURF THE WEB

• The Meade 4M Community:

http://www.meade4m.com

• Sky & Telescope:

http://www.skyandtelescope.com

• Astronomy:

http://www.astronomy.com

• Astronomy Picture of the Day:

http://antwrp.gsfc.nasa.goc/apod

• Photographic Atlas of the Moon:

http://www.lpi.ursa.edu/research/lunar_orbiter

• Hubble Space Telescope Public Pictures:

http://oposite.stsci.edu/pubinfo/pictures.html

the positions of the moons each night is an

excellent exercise for novice astronomers.

Any small telescope can see the four

Galilean moons of Jupiter (Fig. 9), plus a few

others, but how many moons does Jupiter

actually have? No one knows for sure! Nor

are we sure how many Saturn has either. At

last count, Jupiter had over 60 moons, and

held a small lead over Saturn. Most of these

moons are very small and can only be seen

with very large telescopes.

Probably the most memorable sight you will

see in your telescope is Saturn. Although

Looking at or near the Sun will cause irreversable damage to your eye. Do not point this telescope at or near the Sun. Do not look through the telescope as it is moving.

Meade polaris 90 мм Инструкция по эксплуатации онлайн [14/28] 159829

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