A small group of stars that appear to be close together are often known a cluster. Technically its an asterism.
What a group of warriors is called generally depends on the size of the group. A small group is a squad. A somewhat larger group is a platoon or company. At the far end of the spectrum is an army.
committee
A flotilla
Microscopes
controlled experiment
Plain smart
For example, a bicycle pump will do that.
you call them a fleet but if they are wardhips you call them armada
The instrument used to make extremely small things look larger so humans can see them is a microscope.
The definition would be applicable to:anteroombathroombaybowercompartmentclosetcubbyholecubiclenicherecessstudyvestibule
Magnifying Glass, Microscope