Meade DS-2000 Series Bedienerhandbuch PDF herunterladen (Seite 16)

Speeds 1,

2, or 3:

Best used f

or fine centering of an object in the field of view of a higher power

eyepiece, such as a 12mm or a 9mm eyepiece.

Speeds 4,

5, or 6:

Enab

les centering an object in the field of a low-to-moderate power eye-

piece, such as a standard 25mm eyepiece.

Speeds 7 or 8: Best used for rough centering of an object in the eyepiece.

Speed 9: Mo

ves the telescope quickly from one point in the sky to another.

Observe the Moon

oint your telescope at the Moon (note that the Moon is not visible every night) and practice

using the Arrow keys and the slew speeds to view different features. The Moon contains many

interesting features, including craters, mountain ranges, and fault lines. The best time to view

the Moon is during its crescent or half phase. Sunlight strikes the Moon at an angle during these

periods and adds a depth to the view. No shadows are seen during a full Moon, causing the

overly bright surface to appear flat and rather uninteresting.

Consider the use of a neutral density Moon filter when observing the Moon. Not only does it cut

down the Moon's bright glare, but it also enhances contrast, providing a more dramatic image.

Astronomical Observing

Used as an astronomical instrument, your telescope has many optical and electromechanical

capabilities. It is in astronomical applications where the high level of optical performance is

readily visible.

To Track an Object Automatically

As the Earth rotates beneath the night sky, the stars appear to move from East to West. The

speed at which the stars move is called the sidereal rate.You can setup your telescope to move

at the sidereal rate so that it automatically "tracks" the stars and other objects in the night sky.

In other words, if the telescope is not tracking an astronomical object, the object will drift out of

the eyepiece field of view. The tracking function automatically keeps an object more or less cen-

tered in the telescope’s eyepiece.

To track objects, you must first initialize Autostar and then select "Targets: Astronomical" from

the Autostar Setup menu. You must also learn how the Autostar keypad operates in order to

move through the Autostar menus.

Moving Through Autostar’s Menus

Autostar’s menus are organized for quick and easy navigation.

N Press ENTER to go deeper into

Autostar's menu levels.

N Press MODE to mo

ve back toward the

top menu level.

N Press the Scroll keys to move through

the options a

ailab

le f

or each level.

N Press the Arro

w k

ys to enter char

ac-

ters and digits

The Arro

w k

ys are also used to move

the telescope.

DS-2000 TIPS

Which One’s the

Alignment Star?

If Autostar has chosen an alignment star with

which you are unfamiliar, how can you be

sure if the star in y

our e

yepiece is really the

alignment star?

The rule of thumb is that an alignment star is

usually the brightest star in that area of the

sky

When you view an alignment star in an

eyepiece, it stands out dramatically from the

rest of the stars in that portion of the sky.

If y

ou have an obstruction, such as a tree or

a b

uilding b

loc

king your view of the alignment

star, or if you have any doubts at all about the

star that has been chosen, no problem. Just

press the Scroll Down key and Autostar will

find another star to align upon.

Fig. 16: The Moon is an

excellent object for

beginners to observe.

1 2 ... 11 12 13 14 15 16 17 18 19 20 21 ... 47 48

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