Celestron Ultima 80 User Manual

P
P
O
O
W
W
E
E
R
R
S
S
E
E
E
E
K
K
E
E
R
R
8
8
0
0
E
E
Q
Q
T
T
E
E
L
L
E
E
S
S
C
C
O
O
P
P
E
E
I
I
N
N
S
S
T
T
R
R
U
U
C
C
T
T
I
I
O
O
N
N
M
M
A
A
N
N
U
U
A
A
L
L
#
#
2
2
1
1
0
0
4
4
8
8

Celestron Ultima 80 Specifications

General

Prism type	BaK-4
Lens coating	Fully Multi Coated (FMC)
Field of view	16.15 - 32 m
Magnification	60 x
Objective diameter	80 mm
Constant eye relief	18 mm
Minimum magnification	20 x
Closest focusing distance	8 m
Tripod mounting supported	Yes
Exit pupil (max magnification)	1.3 mm
Exit pupil (min magnification)	4 mm
Twilight factor (max magnification)	40
Twilight factor (min magnification)	69.2
Angular field of view (max magnification)	1 °
Angular field of view (min magnification)	2 °
Product color	Black, Grey

Weight and Dimensions

Depth	90 mm
Width	490 mm
Height	190 mm
Diameter	1616 mm

Summary

Assembling Your Telescope

Aligning the Finderscope

Instructions on how to align the finderscope with the main telescope for easier targeting.

Using the Barlow Lens

Telescope Operation

Moving Your Telescope

Balancing the Telescope in Right Ascension (R.A.)

Procedure for balancing the telescope on the R.A. axis for smooth movement and tracking.

Balancing the Telescope in Declination (DEC)

Procedure for balancing the telescope on the DEC axis to prevent sudden motions.

Focusing

The Celestial Coordinate System

Latitude Scales

Pointing at Polaris

Method for polar aligning the telescope using Polaris as a guide.

Finding the North Celestial Pole

Using the Setting Circles

Magnification (Power)

Celestial Observing

Observing the Moon

Observing the Planets

Observing Deep-Sky Objects

"Seeing" Conditions

Telescope Maintenance