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. 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.
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]
See also
[edit]References
[edit]- ^ 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) Archived 2011-07-16 at the Wayback Machine
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