Celestron AstroMaster LT 76AZ Telescope AstroMaster LT Series Manual English - Page 24

Astromaster Lt Specifications - 31036

Page 24 highlights

ASTROMASTER LT SPECIFICATIONS 21073 AM 60 AZ 21074 AM 70AZ 31036 AM 76 AZ Optical Design Aperture Focal Length Focal Ratio Secondary Mirror Obstruction -- Dia. - Area Optical Coatings Finderscope Diagonal Eyepieces 1.25" Apparent FOV -- 25 mm @ 50° -- 10 mm @ 40° Angular Field of View w/standard eyepiece Linear FOV w/standard eyepiece -ft/1000yds Refractor 60mm (2.4") 700mm f/12 n/a Fully coated Star Pointer 1.25"Mirror Refractor 70mm (2.7") 700mm f/10 n/a Fully coated Star Pointer 1.25"Mirror Newtonian 76mm (3.0") 700mm f/9 31mm - 10% Fully coated Star Pointer n/a 20 mm (35x) 10 mm (70x) 1.7° 89' 20 mm (35x) 10 mm(70x) 1.7° 89' 20 mm (35x) 10 mm (70x) 1.7° 89' Mount Pan Handle Control for Altitude Azimuth Lock Tripod Leg Diameter 1.00" CD-ROM "The Sky" Level 1 Altazimuth yes yes yes yes Altazimuth yes yes yes yes Altazimuth yes yes yes yes Highest Useful Magnification Limiting Stellar Magnitude Resolution -- Raleigh (arc seconds) Resolution -- Dawes Limit " " Light Gathering Power 144x 11.4 2.32 1.93 73x 162x 11.7 1.99 1.66 100x 180x 11.9 1.83 1.53 118x Optical Tube Length Telescope Weight 28" (71cm) 28" (71cm) 26" (66cm) 13 # (5.8kg) 16 # (7.2kg) 12 # (5.4kg) Note: Specifications are subject to change without notice or obligation Note: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: -Reorient or relocate the receiving antenna. -Increase the separation between the equipment and receiver. -Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. -Consult the dealer or an experienced radio/TV technician for help. 24

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21073
21074
31036
AM 60 AZ
AM 70AZ
AM 76 AZ
Optical Design
Refractor
Refractor
Newtonian
Aperture
60mm (2.4”)
70mm (2.7”)
76mm (3.0”)
Focal Length
700mm
700mm
700mm
Focal Ratio
f/12
f/10
f/9
Secondary Mirror Obstruction -- Dia. - Area
n/a
n/a
31mm - 10%
Optical Coatings
Fully coated
Fully coated
Fully coated
Finderscope
Star Pointer
Star Pointer
Star Pointer
Diagonal
1.25”Mirror
1.25”Mirror
n/a
Eyepieces 1.25”
Apparent FOV -- 25 mm @ 50°
20 mm (35x)
20 mm (35x)
20 mm (35x)
-- 10 mm @ 40°
10 mm (70x)
10 mm(70x)
10 mm (70x)
Angular Field of View w/standard eyepiece
1.7°
1.7°
1.7°
Linear FOV w/standard eyepiece -ft/1000yds
89’
89’
89’
Mount
Altazimuth
Altazimuth
Altazimuth
Pan Handle Control for Altitude
yes
yes
yes
Azimuth Lock
yes
yes
yes
Tripod Leg Diameter 1.00”
yes
yes
yes
CD-ROM “The Sky” Level 1
yes
yes
yes
Highest Useful Magnification
144x
162x
180x
Limiting Stellar Magnitude
11.4
11.7
11.9
Resolution -- Raleigh (arc seconds)
2.32
1.99
1.83
Resolution -- Dawes Limit
1.93
1.66
1.53
Light Gathering Power
73x
100x
118x
Optical Tube Length
28” (71cm)
28” (71cm)
26” (66cm)
Telescope Weight
13 # (5.8kg)
16 # (7.2kg)
12 # (5.4kg)
Note: Specifications are subject to change without notice or obligation
Note: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part
15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a resi-
dential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and
used in accordance with the instructions, may cause harmful interference to radio communications. However, there is
no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interfer-
ence to radio or television reception, which can be determined by turning the equipment off and on, the user is encour-
aged to try to correct the interference by one or more of the following measures:
—Reorient or relocate the receiving antenna.
—Increase the separation between the equipment and receiver.
—Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
—Consult the dealer or an experienced radio/TV technician for help.
ASTROMASTER LT SPECIFICATIONS
24