Celestron StarSense Explorer DX 102 Telescope
Authorised Dealer
- Unleash the power of your smartphone to take you on a guided tour of the night sky—no telescope experience required.
- Award-winning and Patent-pending StarSense sky recognition technology uses your smartphone to analyze star patterns overhead and calculate its position in real-time. Check phone compatibility here.
- StarSense Explorer app automatically generates a list of objects currently visible. View planets, brighter nebulae and galaxies, star clusters, and double stars from the city. Or take your telescope to darker skies to view faint, deep sky objects.
- 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.
- 102mm (4”) refractor with high transmission XLT optical coatings and enough light-gathering ability to view all the best celestial objects.
- 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), and a sturdy, full-height tripod.
Celestron has reinvented the manual telescope with StarSense Explorer—the first telescope that uses your smartphone to analyze the night sky and calculate its position in real-time.
Dock, Launch, Explore
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 move the telescope.
Patent-Pending StarSense Sky Recognition Technology
StarSense Explorer uses patent-pending technology and your smartphone to determine exactly where the telescope is pointed in the night sky. A Lost in Space Algorithm (LISA) 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.
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. 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.
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 6.4 kgs.
Everything You Need to Observe Immediately
When you unbox your new StarSense Explorer DX, you’ll find:
- 102mm refractor optical tube
- StarSense dock for your smartphone
- Low powered (25mm) and high powered (10mm) eyepiece
- 90-degree erect image diagonal
- StarPointer red dot finderscope, perfect for using the telescope during the day or without the StarSense Explorer app
- Altazimuth mount with slow-motion controls
- Full-height tripod with an accessory tray to keep you organized
| 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 | None |
| Finderscope | StarPointer™ red dot finderscope |
| Star Diagonal | Erect image 90° (1.25") |
| Optical Tube | Aluminium |
| 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 the 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 | 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 | 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 | Celestron Starry Night Basic Edition Software |
| Total Kit Weight | 6.44 kg |
| Included Items | Telescope tube | Mount/tripod (preassembled) | 25mm & 10mm eyepieces | Erect image diagonal | StarPointer finderscope | Accessory tray | StarSense Explorer phone dock |
- Reviews
- Questions
New ZealandExcellent
I am loving and learning.
New ZealandEpic service all round!
I've managed to whip out my Celestron StarSense Explorer DX 102 Telescope 3 times so far since purchasing this only 3 weeks ago and boy oh boy am I beyond stoked with it. One slight hiccup was the activation code for the star sense all to connect the device to the telescope, but a quick turnaround (literally a matter of hours after I emailed them close to midnight) had the Celestron team providing a new code and apologising for any inconvenience. I had it all set up ready to go that next morning! If your activation code is 6 digits, this is incorrect it must be 8, so just reach out to their support team and you'll hear back from their support pronto. The Jacobi Digital experience was amazing, the telescope was shipped out the very next day post purchase, arrived safe and in a pristine state and they kept me in the loop of its whereabouts at all times. It literally arrives 2 days later!!! Honestly I've been chuffed with my experience to date with both Jacobi Digital and Celestron Support, highly recommend!!
New ZealandLove my StarSense Explorer DX102 Telescope
The above telescope was bought for me as a birthday present. I am completely new to astronomy so am excited about having got this set up. It was reasonably easy to set up, I just ran into one issue - the part that the phone holder screws into was upside down and I struggled to get it to move. Overall I am very happy - daytime testing has gone well and now I am just waiting for a (relatively) cloud free night to explore the sky :)
New ZealandCelestron Explorer DX 102
Fabulous. Bought as a surprise birthday present for our son in law, he is absolutely over the moon (pun intended). Hard to get him to go to bed at night, the technology is amazing and addictive. Great service from the knowledgeable and professional team at Jacob's.
