Vixen Skypod, Инструкция по эксплуатации

Страница: 37 / 48

37
In a pair of reference points for alignment (= a pair alignment), two reference points that are
located opposite each other will make pointing accuracy worse. Avoid choosing reference points
in succession that are more than 90 degrees apart from each other.
Hint 17
If you wish to use reference points that are more than 90 degrees apart, first make a pair alignment
with reference points that are located within 90 degrees of each other. Then make a second pair
alignment in the same way, but the third reference point can be more than 90 degrees from
a former (second) reference point. Pair alignments made across the whole sky will keep the
pointing accuracy high in every direction.
Hint 18
Choosing a reference point near the zenith will make pointing accuracy worse. Due to the nature
of SKYPOD Altazimuth Mount, you won’t be able to improve the pointing accuracy near the zenith
even if you complete a pair alignment perfectly. Use a low power eyepiece to search for a celestial
object in this case.
Hint 19
A variety of celestial objects can be used for
reference points: the moon, planets, nebulae
and star clusters. However, use a reference
star (fixed star), as it may be difficult to determine
the center of extended celestial objects like
nebulae or star clusters.
Hint 20
Up to 20 alignment points may be used to raise slewing accuracy.
Hint 21
Nebulae and Star Clusters
Fixed Stars
AUTOMATIC SLEWING
Alignment