Star in Boötes

Alkalurops

μ Boo HR 5733 HIP 75411 magnitude 4.31

The formation of this name begins with one of the words used by Ptolemy to describe this star in the Almagest: κολλόροβον, "club", rarely used as "sphepherd's staff". This word was transliterated into Arabic as qulurubu…

How this page is made

Astronomy

Official IAU information

Designation

HR 5733

HIP

75411

Bayer ID

μ Boo

Visual magnitude

4.31

Right ascension (J2000)

231.123°

Declination (J2000)

37.3772°

IAU adoption

2016/08/21

Name origin

The formation of this name begins with one of the words used by Ptolemy to describe this star in the Almagest: κολλόροβον, "club", rarely used as "sphepherd's staff". This word was transliterated into Arabic as qulurubus, and hence into Latin as calurus. Then in Renaissance times, the derivation of calurus was mistakenly attributed to another Greek word: καλαῦροψ, "shepherd's staff". This erroneous word, in its turn, was transliterated into Latin, then Arabicized with the article al-, then its spelling corrupted, to become "Alkalurops", which was thereafter applied as a star name to μ Boo.