德式赤道儀 Celestron CGE -------------(3)

[Wongsir]

德式赤道儀 Celestron CGE

中型赤道儀,載重65磅, 若背 C14鏡 則似乎體積太大,
最適合 C8 至 C11 或 10吋 反射鏡.
Goto 操作簡單, 追蹤準確穩定, 中型望遠鏡理想腳架之選.

Software
‧ 40,000 + Objects
‧ 400 User defined objects
‧ Hibernate – Maintains alignment even while powered down
‧ Polar alignment routines for Northern and Southern hemisphere
‧ Filter limits – Displays only objects above the horizon
‧ Permanent programmable PEC – Corrects periodic tracking errors inherent in all worm drives
‧ Smooth ramping of slew motors to reduce wear on drive train

Electronics
‧ Home sensors on RA and Dec axes
‧ Real time clock
‧ Fail safe slew limit switches in RA
‧ 12V DC Servo Motors with integrated optical encoders, 256CPR used in quadrature ‧ Encoder resolution: .11 arcseconds

Mechanics
‧ CNC machined aluminum and stainless steel components

RA axis
‧ 1 inch solid ground stainless steel shaft
‧ Two Preloaded .9835 inch I.D. x 2.047 inch O.D. tapered roller bearing
‧ One 4.724 inch O.D. x 3.543 inch I.D. thrust bearing
‧ 180 tooth, 5.625 inch diameter enveloping bronze gear preloaded to maintain gear mesh while clutch tension varies, manufactured to AGMA 10 quality.
‧ .4375 pitch diameter precision 303 stainless steel worm, manufactured to AGMA 10 quality
‧ 4 point RA clutch system pre-loading a 4.65 inch stainless steel disk for no-slip drive and pointing precision

Declination axis
‧ 1 inch solid ground stainless steel shaft
‧ Two Pre-loaded .9835 inch I.D. x 2.047 inch O.D. tapered roller bearings
‧ One 3.250 inch O.D. x 2.500 inch I.D. thrust bearing
‧ 180 tooth, 5.625 inch diameter non- enveloping bronze gear preloaded to maintain gear mesh while clutch tension varies, manufactured to AGMA 10 quality.
‧ .4375 inch diameter precision 303 stainless steel worm, manufactured to AGMA 10 quality
‧ 2 point Dec clutch system pre-loading a 4.65 inch stainless steel disk for no-slip drive and pointing precision
‧ Latitude Range: 10 deg. to 60 deg.
‧ CGE Maximum Payload: 65 lbs.

Tripod
‧ Tripod height: 36 inch to 50 inch
‧ Leg material: cold rolled carbon steel
‧ Upper leg diameter: 2.75 inch
‧ Lower leg diameter: 2.375 inch

資料來源:
http://www.celestron.com/c2/product.php ... &ProdID=93

Wongsir
26-9-2004

[Wongsir]

Celestron CGE

鍾國欣 和 CGE 赤道儀合照
CGE 背上是 C8