As a mid-sized catadioptric design, the Celestron NexStar 127SLT Maksutov-Cassegrain Computerized Telescope is designed for beginner astronomers willing to take their stargazing to the next level. As a very simple, GoTo telescope, the amount of time to assemble prior to stargazing is very quick and efficient. The kit comes equipped with stainless steel tripods and quick release fork arms and tubes, meaning no additional tools are required for setup. While smaller aperture telescopes are better for planetary observing in general, the NexStar 127SLT is probably the best in the NexStar SLT series for planet viewing because of its Maksutov-Cassegrain design which uses a meniscus lens, therefore creating a slow focal ratio of f/12.
Taking the time to learn the night sky can be quite challenging, so Celestron has designed the SkyAlign feature included with the NexStar 127SLT. Knowledge of the night sky is not required, all the user must know is time, date, and location and must point and center the telescope to three bright stars (or planets) during a given period and the telescope software calculates what these stars must of been against its database and therefore aligns itself. It is that simple! Once aligned, the NexStar Hand Controller has a 4,000 object database to slew to!
The NexStar control software is flash upgradeable, meaning it can be downloaded from the internet whenever an update becomes available.
Designed to be an affordable entry level to mid-level computerized GoTo telescope, the NexStar Star Locating Telescope (SLT) refractors, reflectors and Maks are available in the most popular sizes and are loaded with valuable design features. With pre-assembled, adjustable stainless steel tripods and quick release fork arms and tubes, NexStar SLT telescopes can be set up in a matter of minutes — with no tools required! You can see details of the lunar surface, Venus and its phases, Mars resolved as an orange disc, Jupiter and its four moons, Saturn with its rings plainly visible and much more! Most NexStar SLTs can also be used as a land-based spotting telescope.
|Accessory Tray||No Tool, Quick release|
|Alignment Procedures||SkyAlign, Auto 2-Star Align, 1-Star Align, 2-Star Align, Solar System Align|
|Angular Field of View||.83 °|
|Aperture||127 mm (5 in)|
|CD ROM||The SkyX First Light Edition astronomy software and NexStar Observers List (v2.6.4c)|
|Computer Hand Control||Fully Computerized / Flash Upgradeable|
|Database||4,000 Object Database|
|Eyepiece 1||25 mm (0.98 in)|
|Eyepiece 2||9 mm (0.35 in)|
|Focal Length||1500 mm (59.06 in)|
|GPS||Optional SkySync GPS Accessory (93969)|
|Magnification 1||60 x|
|Magnification 2||167 x|
|Resolution (Dawes)||0.91 arcsec|
|Resolution (Rayleigh)||1.1 arcsec|
|Tracking Modes||Alt-Az, EQ North and EQ South|
|Tracking Rates||Sidereal, Solar and Lunar|