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ξ Ursae Majoris - HIP 55203

This star is not in hip2.dat from the I/311.

Original Hipparcos I/239 has minimal information.

Skychart users confirmed this.

Used in H.A. Rey asterisms.

See SIMBAD Astronomical Database HIP 55203 query for more data.

About:

Xi Ursae Majoris (Xi UMa, ξ Ursae Majoris, ξ UMa) is a star system in the constellation Ursa Major. On May 2, 1780, Sir William Herschel discovered that this was a binary star system, making it the first such system ever discovered. It was the first visual double star for which an orbit was calculated, when it was computed by Félix Savary in 1828.

Other designations:

Alula Australis, ξ Ursae Majoris, ξ UMa, Xi UMa, 53 UMa Ursae Majoris, BD+32°2132, CCDM J11182+3132AB, GC 15537, HD 98230/98231, HIP 55203, HR 4374/4375, IDS 11128+3206 AB / 11128+3206, SAO 62484, WDS J11182+3132AB.

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