telescopic

adjective5

1. •
   Pertaining to, or carried out by means of, a telescope.

   • Within a year or two of Galileo's telescopic discoveries no one disputed that the moon had mountains, Jupiter had moons, Venus had phases and the sun had spots […]. — 2015
2. •
   Able to be extended or retracted by the use of parts that slide over one another.
3. •
   Referring to parts being extended or retracted along coinciding axes (with or without direct contact between the parts).
4. •
   Seen by means of a telescope; only visible through a telescope.

   • telescopic stars
5. •
   Capable of seeing distant objects; far-seeing.