Pi Orionis (π Ori, π Orionis) is a group of fairly widely scattered stars in the constellation Orion that constitute Orion's shield.
They form an exception to the general rule that stars that share the same Bayer designation are close together: π1 is nearly 9° north of π6 (Tau Eridani is an even more noteworthy example of this).
- π1 Ori (aka 7 Orionis)
- π2 Ori (aka 2 Orionis)
- π3 Ori (aka 1 Orionis)
- π4 Ori (aka 3 Orionis)
- π5 Ori (aka 8 Orionis, forms a visual double with 5 Orionis)
- π6 Ori (aka 10 Orionis)
All of them were member of asterism 參旗 (Shēn Qí), Banner of Three Stars, Net mansion.