Celestron NEXSTAR 4 User 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