We love the StarSense Explorer collection. This model comes with a really nice quality 114mm aperture Newtonian optical tube. It uses high quality mirrors to deliver 20 times more light than the human eye will see on its own. To help you get the most of this scope we've bundled it with a red light flashlight that will preserve your night vision, a nice set of filters to add contrast to those bright solar system objects like the moon and planets, and an excellent guide to the 110 Messier objects that will keep you busy with your telescope year-round. This is everything you need to get a good start.