Struve 1694

Position of Σ 1694 (circled)

Struve 1694 (Σ 1694, Struve 1694) is a double star in the constellation Camelopardalis.

Σ 1694 is a double star, with components of magnitudes 5.3^m and 5.9^m:

Σ 1694A (HD 112028) is a white A-type giant star with an apparent magnitude of 5.28^m. It is approximately 300 light years from Earth.
Σ 1694B (HD 112014) is a spectroscopic binary consisting of two A-type main sequence stars.

Norton's Star Atlas describes the pair as yellowish and bluish.

In the British Association Catalogue, the star pair are listed as being in Ursa Minor.

Chinese name

In Chinese, 北極 (Běi Jí), meaning North Pole, refers to an asterism consisting of Σ 1694, γ Ursae Minoris, β Ursae Minoris, 5 Ursae Minoris and 4 Ursae Minoris. Consequently, Σ 1694 itself is known as 北極五 (Běi Jí wǔ, English: the Fifth Star of North Pole), representing 天樞 (Tiānshū), meaning Celestial Pivot.

This star was regarded as the north star by the Chinese people from the Han dynasty to Song dynasty.

References

1 2 Norton, Arthur P. (1973). Norton's Star Atlas. p. 118. ISBN 0-85248-900-5.
↑ British Association for the Advancement of Science; Francis Baily (1845). The Catalogue of Stars of the British Association for the Advancement of Science: Containing the Mean Right Ascensions and North Polar Distances of Eight Thousand Three Hundred and Seventy-seven Fixed Stars, Reduced to January 1, 1850: Together with Their Annual Precessions, Secular Variations and Proper Motions, as Well as the Logarithmic Constants for Computing Precession, Aberration and Nutation. With a Preface Explanatory of Their Construction and Application. R. and J. E. Taylor.
↑ (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) 天樞 (北極)
↑ (in Chinese) 香港太空館 - 研究資源 - 亮星中英對照表 Archived 2010-08-10 at the Wayback Machine, Hong Kong Space Museum. Accessed on line November 23, 2010.

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[Nor-1] 1 2 Norton, Arthur P. (1973). Norton's Star Atlas. p. 118. ISBN 0-85248-900-5.

[bac-2] British Association for the Advancement of Science; Francis Baily (1845). The Catalogue of Stars of the British Association for the Advancement of Science: Containing the Mean Right Ascensions and North Polar Distances of Eight Thousand Three Hundred and Seventy-seven Fixed Stars, Reduced to January 1, 1850: Together with Their Annual Precessions, Secular Variations and Proper Motions, as Well as the Logarithmic Constants for Computing Precession, Aberration and Nutation. With a Preface Explanatory of Their Construction and Application. R. and J. E. Taylor.

[3] (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.

[4] (in Chinese) 天樞 (北極)

[5] (in Chinese) 香港太空館 - 研究資源 - 亮星中英對照表 Archived 2010-08-10 at the Wayback Machine, Hong Kong Space Museum. Accessed on line November 23, 2010.