On the trail, at the job site, in the classroom, or simply sitting at home relaxing – the Celestron Elements ThermoTank 3 will keep your hands toasty.

Your eyepieces are the first accessories you should learn to use with your telescope. Eyepieces have different diameters that allow you to view objects through your telescope at a variety of magnification powers simply by swapping out the eyepiece.

Additionally, a simple way to increase magnification is to use a Barlow lens in addition to your existing eyepiece. A 2x Barlow will double the magnification of any existing eyepiece, a 3x Barlow will triple it, and so on. Since longer-focal-length eyepieces generally have longer eye relief, using a Barlow to increase magnification will allow more comfortable high-power viewing.

This rugged, 3-in-1 device features a true tactical 3-mode flashlight, a hand warmer, and a portable power bank for recharging your personal electronics on the go.

This rugged, 3-in-1 device features a true tactical 3-mode flashlight, a hand warmer, and a portable power bank for recharging your personal electronics on the go.

Great for home, classroom, or home-school use, this kit includes all the essential items you’ll need to begin exploring the wonders of the microscopic world.

Great for home, classroom, or home-school use, this kit includes all the essential items you’ll need to begin exploring the wonders of the microscopic world.

Eyepieces come in multiple powers: the higher the number (found printed in millimeters on the eyepiece, such as 15mm, 32mm, and so on), the lower the power. Always start with the lowest-power eyepiece because it is easier to focus and has a wider field-of-view, making it easier to slew the telescope to your desired object. Most of your observing will be done with lower power eyepieces: the images are much brighter and crisper, providing more enjoyment of the objects you're observing. As eyepiece power increases, the sharpness and detail diminishes, so higher powers are mainly used for lunar, planetary, and binary star observations.

On the trail, at the job site, in the classroom, or simply sitting at home relaxing – the Celestron Elements ThermoTank 3 will keep your hands toasty.