East to Use Computerized Telescope
You'll find that astronomical viewing is a delight with this large, powerful 4" (102mm) reflector telescope. The 102 SLT offers a 63% increase in image brightness over 80mm models.
This short-tube telescope with a 660m focal length and fast f/5 optical system produces images that are bright and crisp, and it comes with a fully computerized hand control with a database of over 4,000 celestial objects!
With its pre-assembled, adjustable steel tripod, the NexStar 102 SLT can be up and ready to use in a matter of minutes. Our new SkyAlign alignment technology and the included StarPointer Finderscope with a red LED makes aligning a breeze. Because of its wide 1.7 ° field of view, the NexStar 102 SLT is optimal for scanning large areas of the sky and for superb terrestrial (land) viewing.
Computerized Mount Features
|Aperture (mm)||102 mm (4.02 in)|
|Focal Length (mm)||660 mm (26 in)|
|Eyepiece 1 (mm)||25 mm (0.98 in)|
|Magnification 1||26 x|
|Eyepiece 2 (mm)||9 mm (0.35 in)|
|Magnification 2||73 x|
|Accessory Tray||No Tool, Quick release|
|Weight (lbs)||14 lbs (6.35 kg)|
|Highest Useful Magnification||241 x|
|Lowest Useful Magnification||15 x|
|Limiting Stellar Magnitude||12.5|
|Resolution (Rayleigh)||1.37 arc seconds|
|Resolution (Dawes)||1.14 arc seconds|
|Photographic Resolution||308 line/mm|
|Light Gathering Power (Compared to human eye)||212 x|
|Angular Field of View (deg)||1.7 °|
|Linear Field of View (@1000 yds)||91 ft (28 m)|
|Slew Speeds||Nine slew speeds: 4°/sec, 2°/sec, 1°/sec, .5°/sec, 32x, 16x, 8x, 4x, 2x|
|Tracking Rates||Sidereal, Solar and Lunar|
|Tracking Modes||Alt-Az, EQ North and EQ South|
|Alignment Procedures||SkyAlign, Auto 2-Star Align, 1-Star Align, 2-Star Align, Solar System Align|
|Computer Hand Control||Fully Computerized / Flash Upgradeable|
|Database||4,000 Object Database|
|GPS||Optional SkySync GPS Accessory (93969)|
We highly recommend the Celestron 94005 StarSense Autoalign accessory with this telescope (see below). The StarSense decreases setup time to less than 3 minutes!