astronomical telescope professional stargazing children student high magnification single tube world dual-use children's science experiment

"Key Performance Indicators (KPIs)":
Refracting/Focal Length: 360mm, Aperture Diameter: 50mm
★ Can be assembled into 60 times, 18 times, and with a 1.5x telecentric lens, it can be assembled into 90 times, 27 times.
Theoretical resolution: 2.000 arc seconds, which is equivalent to being able to distinguish two objects that are 0.970 cm apart from each other at a distance of 1000 meters.
★Main Lens Color: Silver (as shown in the picture)
★ Weight: About 1 kilogram
★ Outer Box Size: 44CM * 21CM * 10CM
Observation Combo: 1.5x Positive Lens, H20mm Eyepiece (Completely Inverted)
Use Guidelines:
1. Unlock the support legs and install the telescope tube onto the yoke, then adjust using the large locking screws.
2, insert the celestial sphere mirror into the focusing tube, and fix it in place with the corresponding screws.
3, install the eyepiece on the celestial dome, and fix it with the corresponding screws.
4, If you want to magnify using a positive mirror, install it between the eyepiece and the tube (without installing the 90-degree zenith lens), and you can then observe celestial bodies.