Get a clear view of the solar system with this National Geographic 80-40070 70mm telescope. The short 700mm focal length delivers high-powered wide-field views while promoting portability, and the 70mm aperture enhances your view of planets and other objects in the sky. This National Geographic 80-40070 70mm telescope features an adapter to connect smartphones and take photos of objects.
Q: Does this telescope come with a tripod?
A: Yes, this telescope includes a full-size tripod that is fully adjustable.
Q: What is the focal length of this telescope?
A: This telescope has a 700mm focal length.
Q: How many eyepieces come with the telescope?
A: The telescope comes with two eyepieces: a 26mm and a 9.7mm Plössl eyepiece.
Q: What is the diameter of the objective lens on this telescope?
A: The objective lens diameter is 70mm.
Q: What type of mount does this telescope use?
A: This telescope uses a manual alt-azimuth mount.
Q: Can I take pictures with this telescope?
A: Yes, the telescope includes a smartphone adapter to capture images through the eyepiece.
Q: Can you see all the planets ?
A: Not for astronomy
Q: Tripod - full size or tabletop?
A: Approximately 4 ft tall

Get a clear view of the solar system with this National Geographic 80-40070 70mm telescope. The short 700mm focal length delivers high-powered wide-field views while promoting portability, and the 70mm aperture enhances your view of planets and other objects in the sky. This National Geographic 80-40070 70mm telescope features an adapter to connect smartphones and take photos of objects.

This portable telescope features fully coated glass optical elements for clear, crisp images and an erect image diagonal for correctly oriented viewing. The backpack lets you take your telescope on the go.

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. StarSense Explorer is ideal for beginners thanks to the app’s user-friendly interface and detailed tutorials. It’s like having your own personal tour guide of the night sky.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; it is compatible with Android 12 and later, as well as iOS 18 and newer, including iPhone XR and newer models. Users with older phones can still use this app, but will not be able to reinstall the app if they uninstall it. 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 130mm (5”) 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. Highly reflective coatings on both the primary and secondary mirror enhance the views even 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 5” Newtonian 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 18 pounds, so it’s perfectly portable and easy to bring on your next camping trip or to a remote observing site. Everything You Need to Observe Immediately. When you unbox your new StarSense Explorer DX, you’ll find: 130mm Newtonian reflector optical tube, StarSense dock for your smartphone, Low powered (25mm) and high powered (10mm) eyepiece, 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.

Embark on a fascinating adventure through our solar system and beyond with National Geographic’s StarApp70mm 80-30070 telescope. This refractor is great for lunar, planetary and deep sky observing and has a special mount that allows users to attach their smart phone to the telescope and use the ARTelescope App to locate and learn about constellations and planets. As observers move the telescope across the night sky, they will hear facts about the constellations and planets in the app’s database as they come into view. The telescope comes with two interchangeable eyepieces and a 2x Barlow lens to provide a versatile range of magnifications.
| Pros for National Geographic - 70mm Refractor Telescope - Black | |||
|---|---|---|---|
| There were no pros for this product— | Portability, Quality | Ease of use, Image Quality, Price, Clarity, Assembly | Ease of use, Telescope Quality |
| Cons for National Geographic - 70mm Refractor Telescope - Black | |||
| There were no cons for this product— | Magnification | Magnification, App Functionality, Tripod Stability, Alignment, Instructions | There were no cons for this product— |
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Extremely disappointed. I wasn't hoping for much, but this..ugh. first off, the instructions are horrible. Take it from the person who puts together boxed furniture. Second, i can see the stars better with my phone. Third, the company said put the telescope together wrong. I was mad that the nat geo logo was upside down. Then i was mad the cap didnt fit. Turns out, that how they put it together. I was able to flip it, but i feel like thay could be why i just wasted 100 bucks on a Christmas gift. Just dont bother with this.
Posted by Justkindahere
Great price but not a very good telescope. Hard to set up. Not very good images.
Posted by Micky
We received this after Christmas. A part was broken so I called the company but no answer. I went online to request replacement. Yesterday, I received parts that were not needed or requested. I’m thinking about returning it.
Posted by NationalGeoTelescope