Over the years, ETX Series telescopes have provided novice astronomers quality, value and performance, with each new model bringing enhancements and improvements. The ETX90 Observer continues that legacy.
Starting your astronomy journey with the ETX90 is an excellent choice. Take advantage of 90mm of aperture to enjoy close-up views of the solar system and celestial objects anytime, anywhere. Packing your ETX90 Observer and tripod at a moment?s notice is a breeze with the carrying case and durable tripod bag.
The ETX 90 Observer fully equips the modern explorer with a sophisticated, automated and portable telescope. Its dual-purpose design includes a removable OTA and includes exceptional features like AudioStar, GoTo technology, and large 30,000 object database. It?s a perfect scope to accompany you during camping, hiking, and outdoor activities. Exploring and night-sky stargazing is made fun, easy and educational. With the ETX90, you?ll see planets, stars, galaxies and nebulae with the push of a button. The legacy of the ETX Series continues.
The ETX90 Observer has a Maksutov-Cassegrain optical design for pinpoint star images and extraordinary contrast, making it a great deep sky performer and ideal for detailed lunar and planetary observation at high magnifications. The Ultra-High Transmission Coatings (UHTC) give maximum light transmission, ensuring the brightest images and the highest contrast. It has a flip mirror included to let light focus to the rear of the telescope (instead of the mirror reflecting the light 90? to the eyepiece), allowing attachment of a camera on the back of the scope (adapters not included). The ETX90 Observer comes with a bubble level/compass to make sure your tripod and mount are level.
Includes a portable but extremely stable full size steel tripod, and comes with an equatorial tilt plate, allowing for polar alignment which is critical for long exposure astrophotography. Also includes a hard carry case for the mount/optical tube and accessories, and a tripod bag for the tripod.
- 90mm f/13.8 Maksutov-Cassegrain telescope with Ultra-High Transmission Coatings (UHTC); 1250mm focal length
- AudioStar handbox with over 30,000 objects in it’s database & a built-in speaker
- Removable optical tube assembly (OTA), allowing the user to take the scope off of the fork mount for customization
- Includes two 1.25” Super Pl?ssl Eyepieces: 26mm (48x) & 9.7mm (129x), and a Red Dot Viewfinder to help aim the scope
- Includes a hard carry case for the mount/optical tube and accessories, and a tripod bag for the tripod
|Brand||Meade Instruments Corp.|
|Package size (LxWxH), cm||85.6×56.9×38.1|
|Optics coating||lenses: multi-layer; mirrors: ultra-high transmission UHTC|
|Objective lens diameter (aperture), mm||90.0|
|Focal length, mm||1250|
|Lowest practical power, x||15.0|
|Highest practical power, x||180.0|
|Resolution threshold, arcseconds||1.3|
|Limiting stellar magnitude||11.7|
|Focusing||by moving the main mirror|
|Eyepieces included||SUPER Pl?ssl 9.7mm (128) series 4000, SUPER Pl?ssl 26mm (48x) Series 4000|
|Eyepiece barrel diameter, in||1.25|
|Tripod height (adjustable), mm||adjustable|
|Telescope control||autoguide, manual|
|Mount||alt-azimuth, dual arm fork|
|Telescope installation platform||equatorial|
|Drive||DC drives along both axes|
|Slew rate||from 2-daily to 5.5 degrees per second (9 speeds)|
|Speed selection||automatic (guiding), manual (if position is corrected)|
|Ports||RS-232, AUX, AutoStar remote control connector|
|Guiding system alignment||automatic, reference stars with the manual centering of the star in the field of view, memorizes the previously entered observation site|
|Remote control features||setting functions, built-in high precision clock|
|Programmable options||automatic search in the database, autoguiding (GoTo), night sky excursion mode with audio lecture, time estimate of astronomical events, reference data on observed objects|
|Objects database||over 30,000 (SAO, HSC, BSC, GCVS catalogues; double stars; UGC, MCG, Abell, Arp galaxies; Caldwell, Messier, IC, NGC objects; planets from Mercury to Pluto)|
|Update via Internet||for catalogues of artificial Earth satellites, asteroids, comets|
|Power supply||6 AA batteries, 9?12V network adapter (optional), 12V car cigarette lighter (optional)|
|Optical tube mounting mode||1/4” thread, dovetail plate|
|User level||beginners, experienced users|
|Assembly and installation difficulty level||easy|
|Observed object||deep-sky objects, planets of the Solar System|