A set of 7 Reference Line Maps, star charts and DSS photos of M17 aka  Swan Nebula, Omega Nebula, Horseshoe Nebula, Lobster Nebula or Checkmark Nebula.  These maps works well with red dot finders and green laser pointers.  The Reference Line Method method adapts well to both binoculars and telescopes.

How to Use Reference Line Maps to locate deep sky objects.

Credits, Links & Resources:

1. The images of  galactic position of eemission nebulae, star clusters and planetary nebulae relative to our own Sun  are provided courtesy of thinkastronomy.com.
2. A complete online resource for  distances, sizes and locations of deep sky objects is available at seds.org.
3. Sky and Tleescope’s This Week’s Sky At A Glance is worth checking before every stargazing session.
4. Danko’s  Clear Sky Chart provides a 48 hour forecast of observing conditions for every  location  in North America.
5. Reference Line Maps are produced by Project DeepSkyMap, a collaborative venture of observers who enjoy  knowing the heavens and  locating objects for themselves.