First, let’s talk about the difference between a reflector and a refractor telescope:
What we usually think of as a telescope – a long tube mounted on a tripod – is a refractor telescope. It utilizes an optical tube design with lenses that give sharp images, but usually has a limited amount of magnification power.
A Newtonian reflector telescope, on the other hand, uses mirrors to reflect more light to the eyepiece, providing more powerful viewing without a huge price tag. (Large mirrors are cheaper to make than large glass lenses!) However, you do end up with a bulkier design than with a refractor. There are also Dobsonian reflectors, which are designed with mirrors but have an easier-to-use stand.
What are the types of telescope stands?
There are different mounts that affect how easy a telescope is to use:
Altazimuth
The most-commonly bought type of telescope for home use by casual astronomers.
Altazimuth mounts are a traditional swivel mount where you can point your telescope up and down to find an object in the night sky.
Dobsonian
A type of altazimuth mount that swivels on a round spinner, like a lazy susan.
Equatorial
More expensive and can be difficult to use, but allows setting the telescope to track stars across the night sky. Not recommended for beginners (and unavailable here), but helpful for serious astro-photographers.
What’s the deal with magnification?
Telescopes all magnify – but some work better than others. Telescope magnification is calculated using the aperture size (where light comes through) and the eyepiece focal length. To get a clear image, you’ll usually want to look for magnification that is no more than 2.4x the aperture diameter in mm. (So a telescope with 100mm aperture can usually only magnify clearly up to 240x.)
Does it matter which eyepiece I get?
You’ll want at least an 1.25”-diameter eyepiece and one with multiple lenses to provides a good field of view with little distortion, like Kellner (K) and Modified Achromat (MA) eyepieces. Plössl (P) eyepieces are even better, with four lenses used for greatest optical clarity!
Up to 250x magnification power and with 4.5” aperture for greater light-gathering, which means you have a wide, clear field of view and can gaze at nebulas and star clusters
At only 13 pounds, it’s easy to carry. Set on a tabletop, etc.
Comes with a finder scope to help with accurate star locating.
Connects to your smartphone with the StarSense Explorer app
Use the app and the Altazimuth mount to easily locate stars
With up to 307x magnification and a large 130mm (5”) aperture, you’ll be able to see details like the Great Red Spot on Jupiter, the rings of Saturn, the Pleaides star cluster, and more.
Up to 300x magnification with a 150mm (6”) aperture and excellent optics (including a Plössl eyepiece), so you’ll get excellent views and clear, sharp images of planetary moons and rings as well as deep-sky objects like nebulas
Comes with a finder scope to make star location easy.