Mu<sup>1</sup> Boötis is a binary star in the northern constellation of Boötes. Its name is a Bayer designation that is Latinized from ü<sup>1</sup> Boötis, and abbreviated Mu<sup>1</sup> Boo or ü<sup>1</sup> Boo. This system had the traditional name Alkalurops, pronounced . Based on parallax measurements, the system is located at a distance of 123 light-years.
The components of the system have an angular separation of . They form a spectroscopic binary system with an orbital period of 3.75 years. The visible component is a yellow-white F-type subgiant with an apparent magnitude of +4.31.
The system ü<sup>2</sup> Boötis, separated by 109", makes an optical double with ü<sup>1</sup>, and even has a similar distance from Earth and comparable proper motions, but has a substantially different metallicity, and therefore is not a gravitationally bound companion.
ü<sup>1</sup> Boötis (Latinised to Mu<sup>1</sup> Boötis) is the star's Bayer designation.
The system's traditional name Alkalurops is from the Greek úñûñÃÂÃÂÿàkalaurops "a herdsman's crook or staff", with the Arabic prefix attached. It has also been known as Inkalunis (from the Alfonsine tables), Clava (Latin 'the club') and Venabulum (Latin 'a hunting spear'). In 2016, the International Astronomical Union organized a Working Group on Star Names (WGSN) to catalogue and standardize proper names for stars. The WGSN approved the name Alkalurops for ü<sup>1</sup> Boötis on 21 August 2016 and it is now so entered in the IAU Catalog of Star Names.
It is known as ä¸Âå ¬å Â, Që Gà Âng liù (the Sixth Star of the Seven Excellencies) in Chinese.