Celestron NEXSTAR 4 - Manual (Page 2)

ii
INTRODUCTION ........................................................................................................................................ 4
W ARNING ................................................................................................................................................... 4
ASSEMBLY .................................................................................................................................................. 8
A SSEMBLING THE N EX S TAR ....................................................................................................................... 8
Powering the NexStar ............................................................................................................................ 8
The Hand Control .................................................................................................................................. 9
The Eyepiece.......................................................................................................................................... 9
The Star Pointer Finderscope.............................................................................................................. 10
HAND CONTROL ..................................................................................................................................... 12
H AND C ONTROL O PERATION .................................................................................................................... 13
Alignment Procedure ........................................................................................................................... 13
Auto-Align............................................................................................................................................ 13
Two Star Alignment ............................................................................................................................. 15
Quick-Align.......................................................................................................................................... 15
NexStar Re-Alignment ......................................................................................................................... 16
O BJECT C ATALOG ..................................................................................................................................... 16
Selecting an Object .............................................................................................................................. 16
Slewing to an Object ............................................................................................................................ 16
Tour Mode ........................................................................................................................................... 17
D IRECTION B UTTONS ................................................................................................................................ 17
Rate Button .......................................................................................................................................... 17
S ETUP P ROCEDURES ................................................................................................................................. 18
Tracking Mode ................................................................................................................................................. 18
Tracking Rate ................................................................................................................................................... 18
View Time-Site ................................................................................................................................................ 18
Sidereal Time ................................................................................................................................................... 18
Filter Limits...................................................................................................................................................... 18
Date/Time ............................................................................................................................................ 19
User Defined Objects ....................................................................................................................................... 19
Get RA/DEC ........................................................................................................................................ 19
Get Alt-Az ............................................................................................................................................ 19
Goto R.A/Dec....................................................................................................................................... 19
Goto Alt-Az .......................................................................................................................................... 19
U TILITY F EATURES ................................................................................................................................... 20
Steup Time-Site................................................................................................................................................ 20
Anti-backlash ................................................................................................................................................... 20
Slew Limits ...................................................................................................................................................... 20
Direction Buttons ............................................................................................................................................. 20
Light Control .................................................................................................................................................... 20
Select Model..................................................................................................................................................... 20
RS-232.............................................................................................................................................................. 20
Hand Control Command Tree ............................................................................................................. 21
TELESCOPE BASICS............................................................................................................................... 22
I MAGE O RIENTATION ................................................................................................................................ 22
F OCUSING ................................................................................................................................................. 23
C ALCULATING M AGNIFICATION ............................................................................................................... 23
D ETERMINING F IELD OF V IEW .................................................................................................................. 23
G ENERAL O BSERVING H INTS .................................................................................................................... 24
ASTRONOMY BASICS ................................................................................................................................ 25
T HE C ELESTIAL C OORDINATE S YSTEM ..................................................................................................... 25