Whether an object or device can be considered a telescope primarily depends on its function and characteristics. A telescope is an instrument designed to observe distant objects by collecting electromagnetic radiation (e.g., visible light, radio waves, etc.).
To qualify as a telescope, the device should have certain key features:
Magnification: The ability to make distant objects appear closer.
Objective Lens or Mirror: Used to gather and focus light or other forms of electromagnetic radiation from the subject being observed.
Eyepiece or Sensor: Provides a way for either the human eye or a digital sensor to view or record the image produced by the objective component.
Telescopes vary widely in design and purpose, including optical telescopes (like refractors and reflectors), radio telescopes, and even space telescopes like the Hubble. Devices that lack these attributes would not generally be considered telescopes, as their primary function would not align with the standard capabilities associated with telescopic equipment.