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physical object > natural object > celestial body > collection of stars > star system > triple star > 40 Eridani

40 Eridani comparison table

Subject	is part of	is a kind of	is an instance of	has definition
triple star		star system		A star system having three stars that revolve around one another.
40 Eridani	Eridanus		triple star	A nearby triple system, 5 pc distant. Component A is K0 V; component B is a DA white dwarf; component C is M5e V.

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