Celestron Nexstar 90 SLT astronomical telescope

Celestron Nexstar 90 SLT Maksutov-Cassegrain telescope with 3.5-inch primary mirror

Due to the large size of the package, the only delivery method is Matkahuolto.

A reflecting telescope with motor tracking and a GoTo mount. This device can automatically search for objects in the sky and track them continuously.

The SLT Series models feature NexStar computer control, which allows the telescope to be automatically aligned to any of over four thousand objects, the data of which is pre-installed on the altazimuth mount. These 4000 stored objects include over 600 galaxies, 300 star clusters and dozens of beautiful binary stars. So there is plenty of time to observe. The telescope can be updated with a GPS locator, making polar alignment with the SkyAlign alignment system easy and hassle-free.

See the surface features of the Moon, the rings of Saturn or the polar ice caps of Mars, the cloud belts of Jupiter or any of the many Messier objects such as the Hercules globular cluster (M13) or the Orion Nebula (M42). With the 127 SLT's five-inch primary mirror, you can focus your gaze on even fainter Messier objects than ever before!

General features:

• 90mm Maksutov-Cassegrain telescope for the beginner stargazer
• Computer-controlled Altazimuth tripod
• StarPointer finder makes it easy to aim and pinpoint targets
• Quick-release fasteners on the stand, tube and accessory tray for quick setup without tools
• Stainless steel tripod and accessory tray
• Suitable as a terrestrial telescope and as a star telescope
• "TheSkyX -- First Light Edition" astronomy software with a database of 10,000 objects, printable sky maps and 75 enhanced images

Features of the computer-controlled stand:

• Proven NexStar computer control
• Database for pointing the telescope at over 4,000 objects
• SkyAlign allows alignment using any three celestial bodies
• Flash-based upgradeable remote controller software and motor drivers allow software updates to be downloaded via the internet
• Internal battery compartment prevents the power cord from getting tangled during use
• Aux communication port for additional devices such as GPS equipment
• Includes NSOL telescope management software for basic telescope control via computer (using optional RS-232 cable) Compatible with NexRemote telescope management software for advanced telescope control via computer

Specifications:

• Optical structure: Maksutov-Cassegrain reflecting telescope
• Aperture size (mm): 90mm (3.5in)
• Focal length: 1250mm
• Focal length factor: 13.9
• Eyepiece 1 focal length (mm): 25mm (0.98in)
• Eyepiece 1 magnification: 50x
• Eyepiece 2 focal length (mm): 9mm (0.35in)
• Eyepiece 2 magnification: 139x
• Search: StarPointer
• Tripod type: Motorized Altazimuth
• Accessory tray: With tool-free quick release
• Tripod: Steel
• Highest useful magnification: 213x
• Minimum useful magnification: 13x
• Limiting stellar magnitude: 12.3
• Resolution (Rayleigh): 1.55 arc seconds
• Resolution (Dawes): 1.29 arc seconds
• Light gathering power (relative to human eye): 329x
• Field of view: 1°
• Linear Field of View (@1000 yds): 16m
• Optical Coating: Fully-Coated
• Tracking speed: Sidereal, Solar and Lunar
• Tracking modes: Alt-Az, EQ North and EQ South
• Alignment modes: SkyAlign, Auto 2-Star Align, 1-Star Align, 2-Star Align, Solar System Align
• Remote control computer: Fully computerized / Flash upgradeable
• GPS: Available with SkySync GPS accessory (93969)
• Warranty: 2 years