|Area||907 sq. deg. (13th)|
|Main stars||7, 15|
|Stars with planets||9|
|Stars brighter than 3.00m||3|
|Stars within 10.00 pc (32.62 ly)||3|
|Brightest star||Arcturus (α Boo) (−0.04m)|
|Visible at latitudes between +90° and −50°.|
Best visible at 21:00 (9 p.m.) during the month of June.
Other designations: Arctophylax
Boötes, pronounced with both 'O's as 'boötez', is one of the 88 modern constellations in the northern sky. The name is from the Greek word Βοώτης, which means herdsman – someone who takes care of animals.
Shape[change | change source]
The constellation's shape is like a kite. Boötes has the third brightest star in the night sky, called Arcturus (α Bootis). The astronomer Ptolemy listed it in the 2nd century when he made a list of 48 constellations.
The Cloverleaf quasar is visually in Bootes.
Main stars[change | change source]
- α Bootis (Arcturus) is the brightest and most important star of the constellation, with a magnitude of -0.04, the 3rd brightest star of the sky. It is an orange giant star
- β Bootis (Nekkar), yellow giant with magnitude 3.49 and 219 light years from the Earth
- y Bootis (Ceginus), Delta Scuti variable with magnitude 3,04
- δ Bootis (Princeps), another yellow giant.
Deep-sky objects[change | change source]
- NGC 5248, spiral galaxy, 10º south of Arcturus
- NGC 5466, globular cluster, 9º northwest of Arcturus, near M3, a globular cluster in the constellation Canes Venatici.