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Celestron Starsense Explorer DX 102 Refractor

SKU Starsense Explorer DX 102 Refractor
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Original price $636.95 USD
Original price $636.95 USD - Original price $636.95 USD
Original price $636.95 USD
Current price $489.95 USD
$489.95 USD - $489.95 USD
Current price $489.95 USD

Explore the Solar System with the Celestron StarSense Explorer 102AZ, a beginner-friendly telescope that combines quality optics with intuitive smartphone-assisted navigation. Designed to make astronomy easier to learn and more enjoyable to explore, the 102AZ uses the StarSense Explorer app to help you locate celestial objects with a simple, guided experience. The StarSense Explorer app features a user-friendly interface and detailed tutorials, making it easier for beginners to learn their way around the night sky. Your smartphone works as a convenient personal guide, helping you discover interesting objects without requiring extensive knowledge of traditional star charts. The included EclipSmart Solar Filter expands the telescope’s versatility by allowing you to safely observe the Sun when the filter is properly installed and used according to its instructions. The original package description references the 2024 Total Solar Eclipse; the filter remains useful for solar observing beyond that event.

Dock, Launch, Explore

Leave complicated star charts, imprecise planetarium apps, and computerized mounts behind. With StarSense Explorer, locating objects has never been easier, faster, or more accurate. Within minutes of setting up the telescope, you’ll be navigating the sky with confidence. Simply place your phone in the unique StarSense dock and launch the StarSense Explorer app. After aligning your phone to the telescope’s optics (a quick, 2-minute procedure), StarSense Explorer generates a list of celestial objects currently visible. Make your selection and arrows appear onscreen, guiding you as you to move the telescope. When the object is ready to view, the bullseye turns green.

Smartphone Compatibility

StarSense Explorer works with most modern smartphones, including iPhone 6 and up and most devices running Android 7.1.2 or later manufactured since 2016.

Patented StarSense Sky Recognition Technology

StarSense Explorer uses patented technology and your smartphone to determine exactly where the telescope is pointed in the night sky. A Lost in Space Algorithm (LISA), like the ones satellites use in orbit to correctly orient themselves, helps the app match star patterns it detects overhead to its internal database. While other astronomy apps may claim that they can help you find objects, they rely exclusively on the phone’s gyros and accelerometers, which aren’t as accurate as LISA technology. No other app can accurately tell you when your target is visible in the eyepiece.

High Quality Altazimuth Mount with Slow Motion Control

An ultra-stable altazimuth mount provides a sturdy foundation for StarSense Explorer DX. Slip clutches and geared slow motion controls in both axes help you move the telescope smoothly and zero in your target. As celestial objects appear to drift across the night sky, you’ll be able to follow them with just a few turns of the knobs. It’s all anchored by an adjustable, full-height tripod.

Dazzling Views with High Quality Optics

With a large 102mm (4”) objective lens, this telescope has enough light gathering ability to bring out impressive detail in celestial objects. You can expect sharp, bright views of Jupiter’s four Galilean moons, its cloud bands and Great Red Spot, the rings of Saturn, the trapezium in the Orion Nebula, and beautiful Pleiades Open Star Cluster. Celestron’s XLT optical coatings improve light transmission, enhancing the views even more.  The telescope also includes a 90-degree erect image diagonal, so you can use it during the day to view birds, wildlife, landscapes, and more.

EclipSmart Solar Filter

The Celestron EclipSmart solar filter is custom designed for the StarSense Explorer 102AZ telescopes for viewing the Sun. Three safety screws securely hold the filter in place for a safe, snug fit. EclipSmart solar products feature Solar Safe filter technology—the ultimate protection from harmful solar radiation, including IR and UV light, plus 99.999% of visible light. Celestron Solar Safe filter technology is SAFE for direct observation of the Sun and has been independently tested to conform to and meet the transmission requirements of ISO 12312-2:2015(E), Filters for Direct Observation of the Sun, EN 1836:2005 + A1:2007 (E) for an E15 Filter for the Direct Observation of the Sun and AS/NZS 1338.1:2012, Filters for Eye Protectors.

Important safety note: Never look directly at the Sun with the naked eye or with an optic (unless you have the proper solar filter). Permanent and irreversible eye damage may result.

Perfect for the City or Dark Sky Sites

Even if you live in a light polluted city location, StarSense Explorer is advanced enough to be able to pick out Jupiter, Saturn, Venus, the Orion Nebula, double stars, and a few more of the most famous celestial objects. But if you can take the telescope to an even slightly darker location, more objects will become visible. With this 4” refractor and relatively dark skies, the Andromeda Galaxy, Hercules Open Star Cluster, and so many more are easily within your reach. The entire telescope kit weighs just 14.2 pounds, so it’s perfectly portable and easy to bring on your next camping trip or to a remote observing site. When the Sun goes down, the 102mm optical system provides bright, clear views of the Moon, planets, star clusters, and other celestial targets. This makes the StarSense Explorer 102AZ a versatile choice for beginners who want one telescope for both solar and nighttime observation.

Features

  • SOLAR OBSERVING TELESCOPE KIT: A telescope kit with everything you need to observe the solar eclipse: 102mm refractor telescope with fully coated glass optics, full height tripod, plus lots more
  • SOLAR SAFE TELESCOPE FILTER: Filter conforms to the ISO 12312-2:2015(E) international safety standard for filters directly viewing the Sun. The ideal tool for viewing eclipses, sunspots, or the Sun any day!
  • STURDY MOUNT: Manual altazimuth mount with smooth, dual-axis slow-motion controls makes it easy to follow the on-screen arrows to your desired target. When the bullseye turns green, it’s ready to view in the telescope’s eyepiece.
  • SAFE, SNUG FIT: Three safety screws keep your filter securely attached to your telescope’s objective. A safety cap protects the outer surface of the filter when not in use.
  • SOLAR FILM MADE IN THE USA: Our Solar Safe film is produced in the USA by American Paper Optics, one of the suppliers recommended by NASA for safe solar viewing.
  • GET ECLIPSE READY: Includes 25mm and 10mm eyepieces, StarSense smartphone dock, erect image diagonal, a red dot finderscope (in case you want to use the telescope without your phone), an EclipSmart solar filter, and a sturdy, full-height tripod.

Standard shipping

Estimated delivery time: 7-10 days, unless otherwise  noted

Specifications

Optical Tube Info

Optical Design: Refractor
Aperture: 102mm (4.01")
Focal Length: 660mm (25.98")
Focal Ratio: f/6.5
Focal Length of Eyepiece 1: 25mm (0.98")
Magnification of Eyepiece 1: 26x
Focal Length of Eyepiece 2: 10mm (0.39")
Magnification of Eyepiece 2: 66x
Barlow Lens: Not Included
Finderscope: StarPointer™ red dot finderscope
Star Diagonal: Erect image 90° (1.25")
Optical Tube: Aluminum
Highest Useful Magnification: 240x
Lowest Useful Magnification: 15x
Limiting Stellar Magnitude: 12.5
Resolution (Rayleigh): 1.37 arc seconds
Resolution (Dawes): 1.14 arc seconds
Light Gathering Power (Compared to human eye): 212x
Optical Coatings: Fully XLT Coated glass optics
Optical Tube Length: 812.8mm (32")
Optical Tube Diameter: 118mm (4.64")
Optical Tube Weight: 5 lbs (2.26 kg)
Dovetail: CG-5 Dovetail Bar

Mount Info

Mount Type: Manual Alt-Azimuth
Height adjustment range (includes mount and tripod): Aluminum, 1244.6mm (49") max height
Tripod Leg Diameter: N/A
Accessory Tray: Yes
Tripod Weight: 9.2 lbs (4.17 kg)
Slew Speeds: Manual
GPS: Uses phone's GPS
Dovetail Compatibility: CG-5 Dovetail bar
Power Requirements: None (Recommend PowerTank Glow to keep phone charged while using App)
Alignment Procedures: Use StarSense Explorer App
Software: StarSense Explorer App, SkyPortal App, and Celestron Starry Night Basic Edition Software
Total Kit Weight: 14.2 lbs (6.44 kg)

Included Items

Optical tube
Mount and tripod (preassembled)
25mm and 10mm eyepieces
Erect image diagonal
StarPointer finderscope
Accessory tray
StarSense Explorer phone dock

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