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Manual Celestron CGEM DX 1100 HD Computerized Telescope

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Manual

Your telescope is designed to give you years of fun and rewarding observations. However, there are a few things to consider before using

your telescope that will ensure your safety and protect your equipment.

Warning

 Never look directly at the sun with the naked eye or with a telescope (unless you have the proper solar

filter). Permanent and irreversible eye damage may result.

 Never use your telescope to project an image of the sun onto any surface. Internal heat build-up can damage the telescope and any

accessories attached to it.

 Never use an eyepiece solar filter or a Herschel wedge. Internal heat build-up inside the telescope can cause these devices to crack or

break, allowing unfiltered sunlight to pass through to the eye.

Never leave the telescope unsupervised, either when children are present or adults who may not be familiar with the correct operating

procedures of your telescope

Technical Specs

Highest Useful Magnification

480x 555x 660x 840x

Lowest Useful Magnification

29x 34x 40x 51x

Limiting Stellar Magnitude

14 14.4 14.7 15.3

Resolution: Rayleigh

.68 arc seconds .59 arc seconds .50 arc seconds .39 arc seconds

Dawes Limit

.57 arc seconds .49 arc seconds .42 arc seconds .33 arc seconds

Light Gathering Power

843x unaided eye 1127x unaided eye 1593x unaided eye 2579x unaided eye

Field of View: standard eyepiece

.85º .8º .67º .48º

Linear FOV (@1000 yds)

44 ft. 42 ft. 35 ft. 25 ft.

Optical Coatings - Standard

Starbright XLT Coating Starbright XLT Coating Starbright XLT Coating Starbright XLT Coating

Secondary Mirror Obstruction

2.7" 3.35" 3.75" 4.5"

by Area

11% 13% 12% 10%

by Diameter

34% 36% 34% 32%

Optical tube length

17 inches 22 inches 24 inches 31 inches

#91030

XLT

#91040

XLT

#91050

XLT

#91060

XLT

EdgeHD 800 EdgeHD 925 EdgeHD 1100 EdgeHD 1400

Diameter

203mm (8") EdgeHD

Optics

235mm (9.25") EdgeHD

Optics

280mm (11") EdgeHD

Optics

356mm (14") EdgeHD

Optics

Focal Length

2032mm F/10 2350mm F/10 2800mm F/10 3910mm F/10

Eyepiece

40mm - 1.25" (51x) 23mm - 2" (102x) 23mm - 2" (122x) 23mm - 2" (170x)

Finderscope

9x50 9x50 9x50 9x50

Diagonal

90° - 1.25"

90° - 2" with 1.25"

adapter

90° - 2" with 1.25"

adapter

90° - 2" with 1.25"

adapter

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