λ Sagittarii

Lambda Sagittarii is ‘Kaus Borealis’, The Northern Part of the Bow, meaning the upper tip of the bow. It's just north of delta five degrees: binoculars.

Lambda is an orange subgiant with a radius 11 times that of the Sun.

Lambda serves as the pointer to the Lagoon Nebula, one binocular field (5º) west of the star.

Before we visit this exception object, there are two other Messier objects in the present field of view, M22 and M28:
      M22 is a 5.1m globular cluster, spectacular in medium telescopes
     M26 is an 8m globular cluster, less impressive, large scopes needed.

With lambda centred, move one field west to the outstanding Lagoon Nebula.

Click on M8 on the map to continue.

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© 1999-2014 by Richard Dibon-Smith.