Meade ETX-90 User Manual - Page 49

Model and Product Number, ETX90 Portable Observatory, 3514-04-20, Optical System, Mount, Electronics

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SPECIFICATIONS SPECIFICATIONS Model and Product Number Optical System Optical Design Primary Mirror Diameter Primary Mirror Material Focal Length, Focal Ratio Optical Coatings Resolving Power (arcseconds) Limiting Visual Stellar Magnitude Viewfinder Mount Mount Type Power Battery Life Tripod Electronics Controller Hand Box Included Accessories Eyepieces Bubble Level/Compass Astronomy Software Weight Telescope Tripod Carry Case ETX90 Portable Observatory # 3514-04-20 Maksutov-Cassegrain 3.5" (90mm) Optical quality glass 1250mm, f/13.8 Ultra-High Transmission Coatings (UHTC™) 1.3 arcseconds 11.7 Red Dot Dual Fork Altazimuth 6 "AA" Cell Batteries or AC Adapter 20 hours Adjustable-Height Steel Leg Tripod with EQ tilt-plate AutoStar #497 Super Plössl 26mm and 9.7mm - 1.25" Included - 1.25" Included - for Windows OS 9.05 lbs. 13.3 lbs 6.65 lbs 49

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SPECIFICATIONS
Model and Product Number
ETX90 Portable Observatory
# 3514-04-20
Optical System
Optical Design
Maksutov-Cassegrain
Primary Mirror Diameter
3.5” (90mm)
Primary Mirror Material
Optical quality glass
Focal Length, Focal Ratio
1250mm, f/13.8
Optical Coatings
Ultra-High Transmission Coatings (UHTC™)
Resolving Power (arcseconds)
1.3 arcseconds
Limiting Visual Stellar Magnitude
11.7
Viewfinder
Red Dot
Mount
Mount Type
Dual Fork Altazimuth
Power
6 “AA” Cell Batteries or AC Adapter
Battery Life
20 hours
Tripod
Adjustable-Height Steel Leg Tripod
with EQ tilt-plate
Electronics
Controller Hand Box
AutoStar #497
Included Accessories
Eyepieces
Super Plössl 26mm and 9.7mm - 1.25”
Bubble Level/Compass
Included - 1.25”
Astronomy Software
Included - for Windows OS
Weight
Telescope
9.05 lbs.
Tripod
13.3 lbs
Carry Case
6.65 lbs
SPECIFICATIONS
±9