From $299.95
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The Celestron Omni XLT 102 Refractor OTA is a lightweight 4-inch achromatic refractor with fully coated optics using StarBright XLT coatings that delivers sharp, high-contrast views. Its f/9.8 focal ratio offers impressive detail with minimal chromatic aberration, making it ideal for making detailed observations of the moon and planets, with the ability to resolve bright deep-sky objects. The 102mm aperture and 1000mm focal length achromatic doublet lens uses aspheric shaping technology for images with virtually no spherical aberration, while the optical tube weighs just 9.5 lbs, making it portable and ready to elevate visual astronomy sessions.
| Optical Tube Length | 39.4 mm |
| Resolution (Rayleigh) | 1.36″ |
| Included Eyepiece | 25mm |
| Focal ratio | f/9.8 |
| Diagonal | 1.25 inch, 90-degree |
| Optical Coatings | StarBright XLT Multicoated |
| Focal length | 1000 mm |
| Eyepiece Barrel Diameter | 1.25 in |
| Finderscope | 6x30mm |
| Aperture | 102 mm |
| Weight | 9.5 lb |
| Resolution (Dawes) | 1.14″ |
| Included Eyepiece Magnification | 40 |
| Optical design | Achromatic Refractor |
| Focuser Type | Rack-and-Pinion |
| Mounting System | Vixen-style Dovetail |