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The popularity of our previous short tube refractor models inspired us to go a step further with the introduction of our NexStar 102 SLT. You’ll find that astronomical viewing is a delight with this large, powerful 4″ telescope. The 102 SLT offers a 63% increase in image brightness over 80 mm models. This short-tube telescope with a fast f/6.5 optical system gives images that are bright and crisp.
And the 102 SLT, like the other models in the SLT Series, 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. A wonderful entry to mid-level astronomical scope, with the use of an optional erect image diagonal, the 102 SLT can also be used as a land-based spotting telescope.
|Aperture (mm)||102 mm (4.02 in)|
|Focal Length||660 mm (26 in)|
|Focal Length of Eyepiece 1 (mm)||25 mm (0.98 in)|
|Magnification of Eyepiece 1||26 x|
|Focal Length of Eyepiece 2 (mm)||9 mm (0.35 in)|
|Magnification of Eyepiece 2||73 x|
|Mount Type||Motorized Altazimuth|
|Accessory Tray||No Tool, Quick release|
|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|
|Light Gathering Power (Compared to human eye)||212 x|
|Apparent Field of View||1.7 °|
|Linear Field of View (@1000 yds)||91 ft (28 m)|
|Slew Speeds||Nine slew speeds|
|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)|
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