Appendix a – technical specifications – Celestron C100ED-R User Manual

Page 47

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Appendix A – Technical Specifications

Advanced Series

21021 / 21022

21026 / 21027

Specifications:

Optical Design

80mm (3.2") refractor

100mm (4") refractor

Focal Length

600mm F/7.5

900mm F/9

Finderscope

6x30 9x50

Mount

CG-5 Equatorial

CG-5 Equatorial

Eyepiece

20mm – 1.25" (30x)

20mm – 1.25" (45x)

Accessory tray

Yes

Yes

Tripod

2" Stainless Steel

2" Stainless Steel

Technical Specs

Highest Useful Magnification

189x 236x

Lowest Useful Magnification

11x 14x

Limiting Stellar Magnitude

12 12.5

Resolution: Rayleigh

1.73 arc seconds

1.38 arc seconds

Dawes Limit

1.45 arc seconds

1.16 arc seconds

Light Gathering Power

131x unaided eye

204x unaided eye

Field of View: standard eyepiece

1.67º 1.3º

Linear FOV (@1000 yds)

87.5 ft

70 ft

Optical Coatings - Standard

Fully Multi-Coated

Fully Multi-Coated

Optical tube length

23" 34"

Telescope Weight

42 lbs

50 lbs

Advanced GT

Additional Specifications

Hand Control

Double line, 16 character Liquid Crystal Display; 19 fiber optic backlit LED buttons

Motor: Type

DC Servo motors with encoders, both axes

Max Slew Speed

3º/second

Software Precision

24bit, 0.08 arc sec calculation

Hand Control Ports

RS-232 communication port on hand control

Motor Ports

Aux Port, Autoguide Ports

Tracking Rates

Sidereal, Solar and Lunar

Tracking Modes

EQ North & EQ South

Alignment Procedures

AutoAlign, 3-Star Alignment, Quick Align, Last Align

Database

40,000+ objects, 400 user defined programmable objects.
Enhanced information on over 200 objects

Complete Revised NGC Catalog

7,840

Complete Messier Catalog

110

Complete IC Catalog

5,386

Complete Caldwell

109

Abell Galaxies

2,712

Solar System objects

9

Famous Asterisms

20

Selected CCD Imaging Objects

25

Selected SAO Stars

29,500

Total Object Database

45,492

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