![10and makes an object move through the](/images/new-backgrounds/101910/10191023x1.webp)
telescopic field of view. This movement is caused by the rotation of the Earth
10and makes an object move through the
telescope’s field of view. To keep astronomical objects centered in the field, simply move the telescope on one or both of its
Place the object to be viewed at the edge
STAR CHARTS
Star charts and planispheres are useful for a variety of reasons. In particular, they are a great aid in planning a night of celestial viewing.
Astronomy and Sky and Telescope magazines print star charts each month for
AutoStar Suite™ Astronomer Edition Software on DVD will help you learn the night sky. It displays more than 10,000 celestial objects including planets, stars, galaxies, and nebulae. You can print out star charts and even plan your observing sessions. It operates on any Windows® based PC.
of the field and, without touching the telescope, watch it drift through the field to the other side before repositioning the telescope so that the object to be viewed is again placed at the edge of the field, ready to be further observed.
Vibrations: Avoid touching the eyepiece while observing through the telescope. Vibrations resulting from such contact will cause the image to move. Avoid observing sites where vibrations cause image movement (for example, near railroad tracks). Viewing from the upper floors of a building may also cause image movement.
Let your eyes
Viewing through windows: Avoid setting up the telescope inside a room and observing through an opened or closed window pane. Images may appear blurred or distorted due to temperature differences between inside and outside air. Also, it is a good idea to allow your telescope to reach the ambient (surrounding) outside temperature before starting an observing session.
When to observe: Planets and other objects viewed low on the horizon often lack
Dress Warm: Even on summer nights, the air can feel cool or cold as the night wears on. It is important to dress warm or to have a sweater, jacket, gloves, etc., nearby.
Looking at or near the Sun will cause irreversible damage to your eye. Do not point this telescope at or near the Sun. Do not look through the telescope as it is moving.