Star profile

Alkalurops

Mu 1 Boötis · Boötes

3D likeness based on its real data · class F · ~6,500 K

What is Alkalurops

Alkalurops closes the hand of Boötes, the celestial herdsman who drives the bears around the pole. Its name comes from the Greek «kalaurops», the shepherd's crook, later taken up by Arab astronomers. A yellow-white F-class star 113 light years away, it belongs to a triple system in which two fainter dwarfs revolve slowly around the principal.

Where it is and when to see it

Alkalurops lies in the northern celestial hemisphere. It is visible to the naked eye under a dark sky. Its best month of the year is April, when it culminates around midnight.

From London it culminates about 76° above the horizon.
From New York it culminates about 87° above the horizon.
From Sydney it culminates about 19° above the horizon.

It can be seen from anywhere north of 53° S.

It ranks no. 12 in brightness among the 88 stars of Boötes in our catalogue. To find it, start from Arcturus, the brightest: it lies about 24° away (a fist at arm's length covers about 10°).

The light you see today left it about 110 years ago.

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Astronomical data for Alkalurops

Constellation: Boötes
Apparent magnitude: 4.31
Distance: 113.1 light years
Coordinates (J2000): RA 231.123° · Dec 37.377°
Catalogue: HIP 75411 · HD 137391

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Other stars in Boötes

Boötes has 88 stars in Stelvia's catalogue. Here are a few of them.

See all 88 stars in Boötes