Pi Orionis

Pi Orionis (π Ori, π Orionis) is a group of fairly widely scattered stars in the constellation Orion that constitute the asterism Orion's Shield or Orion's Bow.^[1]

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 (7 Orionis)
π² Ori (2 Orionis)
π³ Ori (1 Orionis)
π⁴ Ori (3 Orionis)
π⁵ Ori (8 Orionis, forms a visual double with 5 Orionis)
π⁶ Ori (10 Orionis)

All of them were member of asterism 參旗 (Shēn Qí), Banner of Three Stars, Net mansion.^[2]

References

^ astrofoto.org, "Orion: The Hunter" Archived 2013-06-10 at the Wayback Machine, Roland B. Roberts
^ (in Chinese) AEEA (Activities of Exhibition and Education in Astronomy) 天文教育資訊網 (Astronomy Education News) 2006 年 7 月 13 日 (2006-07-13)

This set index article includes a list of related items that share the same name (or similar names).
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[RBR-Orion-1] strofoto.org, "Orion: The Hunter" Archived 2013-06-10 at the Wayback Machine, Roland B. Roberts

[2] (in Chinese) AEEA (Activities of Exhibition and Education in Astronomy) 天文教育資訊網 (Astronomy Education News) 2006 年 7 月 13 日 (2006-07-13)

[1]

[2]

The location of Pi⁵ Orionis (π⁵) in the constellation of Orion (shown as a red circle with a red center)

See also

References