HIP 13044是距離地球約2000光年的恆星,目前已發現該恆星有一顆行星。但這顆恆星是大約60億年前被銀河系撕裂後併吞的矮星系形成的珍珠星流的一部分。該恆星年齡超過60億年,所以該恆星實際上是在環繞銀河系或太過靠近銀河系的星系中形成。在恆星HIP 13044周圍環繞的行星HIP 13044b因此曾經是銀河系外行星。另一個讓人感興趣的是,該行星在母恆星曾是紅巨星時幾乎被吞噬,並曾經在母恆星內數百萬年[7]。但后续的研究表明此前的观测有误。较差的信噪比以及错误的质心速度修正导致观测到了错误的径向速度变化,从而导致了错误的观测结果。因此该恒星实际上并不拥有行星。[8]
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^Jones, M. I.; Jenkins, J. S. No evidence of the planet orbiting the extremely metal-poor extragalactic star HIP 13044. Astronomy & Astrophysics. 2014, 562. Bibcode:2014A&A...562A.129J. arXiv:1401.0517. doi:10.1051/0004-6361/201322132.