·

·

·

·

Sections

Catalogues

Tools and Links

Galactic Map

Show the direction and distance to this object on the Galactic Map.

Arcturus

Alpha Boötis, 16 Boötis

Orange Star in Boötes

Show on Sky Map

Proper Name	Arcturus
Bayer Designation	Alpha Boötis
Flamsteed Number	16 Boötis
HR (BSC)	5340
HD	124897
Constellation	Boötes
Right Ascension	14h 16m 23s
Declination	+19° 6' 53"
Distance	37 light years 11 parsecs
Magnitude	Apparent: -0.1 Absolute: -0.3
Spectral Class	K0 Orange Giant
Optimum Visibility	May

Arcturus is the fourth brightest star in the sky: only Sirius, Canopus and Alpha Centauri outshine this orange giant. It is a variable star in the last stages of its life, and relatively nearby at just 37 light years' distance.

Indexes

Related Entries

v2.1

eSky © copyright Mark Fisher 1999-2016