Free Constellations Clipart

Abbreviation:  Boo
English Name:  The Herdsmans
Genitive: Arcturus
Hemisphere:  Northern Hemisphere
Location: Between the constellations of Coma Berenices and Corona Borealis.
Visible between latitudes:  +90 and -50 degrees
Best season: Spring/Summer
Seen in three seasons: Summer, Autumn & Winter
Best seen in:  May/June
Seen between: March and July
Right Ascension (RA):  15 hour
Declination (DEC):  +30 degrees
Area (square degrees):  907 (13th)

Bootes (The Herdsman)

  • Bootes is an elongated constellation;
  • The brightest star in north of the Celestial equator – Arcturus.
  • It is an orange giant star to the naked-eye at the night sky.
  • 100 times more luminous-bright than the Sun.

Messier Objects

  • No Messier objects in Bootes.

Features of Interest

  • Bootes is in a part of the celestial sphere facing away from the plane of our home galaxy – Milky Way, and so does not have open clusters or nebulae.

Named Stars

  • Arcturus (Alpha Boo)
  • Nekkar (Beta Boo)
  • Seginus (Gamma Boo)
  • IZAR (Epsilon Boo)
  • Mufrid (Eta Boo)
  • Asellus Primus (Theta Boo)
  • Asellus Secondus (Iota Boo)
  • Asellus Tertius (Kappa 2 Boo)
  • Alkalurops (Mu 1 Boo)
  • Merga (38 Boo)


  • Photo of the constellation – Bootes, as it appears to the naked-eye. (Lines have been added for clarity.)
  • Sky Chart  –  Bootes
  • List of stars in Bootes.

Back to The 88 Constellations Lists

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