The eShel spectro is a professional-level multi-order fiber-optic instrument.

When you can’t choose between resolution and spectral range – as in the case of exoplanet studies, for example – then you need an Echelle spectroscope, which offers numerous orders at high resolution (R = 10,000).

The eShel spectroscope covers a spectral range of approximately 390 to 700nm (orders 32 to 53).

The complete eShel system includes the spectroscope itself, as well as the FIGU F/6 (Fiber Injection and Guiding Unit), the calibration module (with ThAr lamp), and the optical fibers (target 50µm and calibration 200µm, both 20m long).

• The Celestron Focus Motor enables electronic focusing using a computer or Celestron computerized mount hand controller for remote/hands-free observing.
• Self-powering: When connected to a Celestron computerized mount, the mount provides the power. When connected directly to a computer, USB provides the power.
• Compatible with a wide variety of Celestron Schmidt-Cassegrain, EdgeHD, and Rowe-Ackermann Schmidt Astrograph optical tubes. Check description for full list.
• Motor controls include multiple speed rates, automatic GoTo indexed focuser position, and focuser backlash compensation.
• Focuser Utility software for Windows provides a simple user interface. Also compatible with Celestron PWI.
• Enables autofocusing with a camera and third-party software via ASCOM.
• Indexed focus position allows the motor to automatically return to a previous focus position and prevents the focus motor from reaching the end of telescope’s mechanical focus travel.
• Now compatible with the 9.25” EdgeHD.

• The StarPointer Finderscope adds “point and look” functionality to any telescope!
• This red dot finder keeps the sky right-side up, matching what you see with your unaided eyes
• The adjustable red dot is bright enough to see day or night
• Attaches to just about any telescope thanks to the small footprint, even works great with astronomical binoculars and spotting scopes
• Includes mounting base and a long-lasting CR2032 3V battery

• 34mm fully illuminated field but can handle full frame as well
• 95mm back-focus (55mm when back focus spacer and M48 ring installed)
• Drops f/ratio from native f/7 (840mm) to f/5.4 (647mm)
• Reduces exposure time by 68% compared to native f/7
• Built-in 2" filter cell for mounting filters
• 3.18 x 2.12-degree field of view when used with a full frame camera
• 2.08 x 1.39-degree field of view when used with APS-C crop sensor

• Allows Evostar 0.85x Reducer/Flatteners to easily adapt to your Evostar ED telescope
• Provides a secure threaded connection
• Allows you to rotate your imaging train 360 degrees without removing anything from the optical system
• Built-in 2" filter mounting to easily place filters into the light path
• Compatible with: Evostar 80ED, 100ED, 120ED and 150ED (not the 150DX). 

• Superwide adapter provides widest clear aperture possible for full-frame DSLR imaging performance without vignetting
• Integrated Nikon F-mount bayonet
• 10mm optical length
• Tapered 2" barrel couples adapter to 2" telescope focuser more securely than typical T-adapters
• Glare-threaded, flat-black interior ensures excellent contrast

• Align and control your telescope wirelessly using your smartphone or tablet with Celestron’s exclusive, free SkyPortal app for iOS and Android devices.
• Tap any celestial object you see in the sky to identify it instantly. Tap again and your telescope slews to that object, centering it perfectly in the eyepiece.
• Explore 100,000+ objects in SkyPortal’s database. While you observe, view astroimages and listen to audio descriptions for hundreds of the most popular objects including the planets, Orion Nebula, Hercules Globular Star Cluster, and more.
• Sky Tour feature generates a list of all the best stars, galaxies and nebulae to view based on your exact time and location.
• WiFi module is compatible with all current Celestron computerized telescopes and select older models. Unit does not require batteries or external power.

• The Celestron SkyPortal app can only be used for telescope control when paired with the SkyPortal WiFi module.

Includes These Celestron Technologies

• Compact mini guide scope designed for use with astrophotography telescopes up to 1500mm focal length
• Mini 50mm guide scope with bright, wide-field optics puts numerous potential guide stars in view so you'll never have to search for one!
• Adjustable-aim dovetail guide scope bracket installs on virtually any astrophotography telescope quickly and easily
• Very small and compact autoguiding system adds hardly any weight to an astrophotography setup and can conveniently be stashed in an accessory case between uses
• Designed for use with Orion StarShoot AutoGuider (sold separately) and other similar small-chip CCD autoguiders

ZWO Male M48 to Female M42 Adapter - ZWO-M48-M42

• Attach a variety of accessories to your equipment.

This ZWO M48-M42 adapter allows you to connect an accessory that has an M42x0.75 male thread to another accessory that has an M48x0.75 female thread.

• NexStar+ Hand Control works with Celestron equatorially mounted computerized telescopes
• Compatible with Advanced VX, CGEM, CGEM II, CGX, and CGX-L series telescopes and mounts
• Flash upgradeable via the Internet; latest updates can be found at Celestron.com
• 40,000-object database
• Dual line, 16-character LCD screen with adjustable backlighting
• Now connects to your PC directly with a mini-USB cable (cable not included) for software updates or optional telescope control with third party software

• Compatible with Many Imaging OTAs
• Universal USB-C Interface
• Micron-Level Precision Focusing
• Focus Adjustment Knob
• Maximum Load Capacity: 11 lb
• Built-In Battery Power Supply
• Bluetooth Connectivity
• Autofocus & Manual Modes
• Supports ASCOM/INDI Drivers for Software
• Native Support for ASIAIR

• The EdgeHD .7x Focal Reducer Lens makes your EdgeHD 1400 one full F-Stop faster than f/11, reducing your exposure time by half to capture the same brightness of object
• 5-element lens design
• Maintains similar flat-field performance as native EdgeHD optical design
• Increases field of view by 43% to better capture wide field images
• Threads directly onto the 3.25" threads of the EdgeHD which reduces mechanical vignetting and allows for use with larger (full frame) sensors and Off-Axis Guiders
• Maintains the identical back focus when used at f/11 and provides generous back focus to accommodate additional accessories and wide variety of cameras
• Allows use of existing EdgeHD T-Adapters with or without the Reducer Lens