LHS 2520,或稱為葛利斯3707(Gliese 3707),是一顆位於烏鴉座的紅矮星。該恆星的視星等是肉眼不可見的12.12,光譜型為M3.5V[1],表面溫度3024 K[3]。它因為亮度過低,無法以依巴谷卫星進行視差量測。地面望遠鏡量測結果顯示該恆星視差為77.93 ± 2.41 毫角秒,即距離地球42 ± 1光年[2]。
2012年11月7日出刊的《动作漫画》 #14(2013年1月號)中,天文學家奈爾·德葛拉司·泰森在故事中出場,並指出超人的故鄉氪星所環繞的恆星即為LHS 2520。泰森協助DC漫畫從實際存在的恆星中選出適當的氪星的母恆星,最後選出了位於烏鴉座的LHS 2520[4][5],並且DC漫畫中超人就讀的高中吉祥物即為烏鴉[6]。
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- ^ 2.0 2.1 Riedel, Adric R.; Subasavage, John P.; Finch, Charlie T.; Jao, Wei-Chun; Henry, Todd J.; Winters, Jennifer G.; Brown, Misty A.; Ianna, Philip A.; Costa, Edgardo; Mendez, Rene A. The Solar Neighborhood. XXII. Parallax Results from the CTIOPI 0.9 m Program: Trigonometric Parallaxes of 64 Nearby Systems with 0farcs5 <=μ<= 1farcs0 yr-1 (SLOWMO Sample). The Astronomical Journal. 2010, 140 (3): 897–911. Bibcode:2010AJ....140..897R. doi:10.1088/0004-6256/140/3/897.
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