The two stars are separated by approximately 0.71° in the sky.
The similar composition were found in Chinese astronomy, known as 觜宿 (Zī Sù), meaning Turtle Beak (asterism), Consequently, both of φ Ori themselves is known as 觜宿二 (Zī Sù èr English: the Second Star of Turtle Beak.) (for φ1Ori) and 觜宿三 (Zī Sù sān English: the Third Star of Turtle Beak.) (for φ2Ori) 
- Allen, R. H. (1963). Star Names: Their Lore and Meaning (Reprint ed.). New York, NY: Dover Publications Inc. p. 318. ISBN 0-486-21079-0. Retrieved 2011-07-16.
- (in Chinese) 中國星座神話, written by 陳久金. Published by 台灣書房出版有限公司, 2005, ISBN 978-986-7332-25-7.
- (in Chinese) AEEA (Activities of Exhibition and Education in Astronomy) 天文教育資訊網 2006 年 5 月 24 日
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