Ojibway - Ojibwa - Ojibwe Calendar

Not the astronomy you learned in high school:

Native tribes also had names and stories behind the constellations.

The Big Dipper that is part of the constellation Ursa Major also forms the fisher,
called Ojiig in Ojibwe.

The dipper’s ladle forms the curve of the fisher’s tail.

http://www.nativetimes.com/culture/history/9206-seeing-the-night-sky-as-some-american-indians-do