Pasachoff, Jay M. Hopkins Observatory, Williams College, Williamstown, Massachusetts.
Last reviewed:January 2021
- Related Primary Literature
- Additional Reading
The Little Bear, a circumpolar constellation from northern latitudes (see illustration). Part of this constellation is the prominent asterism (star pattern) known as the Little Dipper, whose stars are fainter than the corresponding stars of the Big Dipper. At the end of the handle of the Little Dipper is Polaris, at magnitude 2.0 not a particularly bright star—only the 49th brightest in the sky—but one that happens in the present epoch to be close to (almost 1° away from) the north celestial pole, the extension of the Earth's axis of rotation into the sky. Thus the Little Dipper and Polaris are useful for formal and informal navigation. See also: Polaris
The content above is only an excerpt.
for your institution. Subscribe
To learn more about subscribing to AccessScience, or to request a no-risk trial of this award-winning scientific reference for your institution, fill in your information and a member of our Sales Team will contact you as soon as possible.
to your librarian. Recommend
Let your librarian know about the award-winning gateway to the most trustworthy and accurate scientific information.
AccessScience provides the most accurate and trustworthy scientific information available.
Recognized as an award-winning gateway to scientific knowledge, AccessScience is an amazing online resource that contains high-quality reference material written specifically for students. Contributors include more than 10,000 highly qualified scientists and 46 Nobel Prize winners.
MORE THAN 8700 articles covering all major scientific disciplines and encompassing the McGraw-Hill Encyclopedia of Science & Technology and McGraw-Hill Yearbook of Science & Technology
115,000-PLUS definitions from the McGraw-Hill Dictionary of Scientific and Technical Terms
3000 biographies of notable scientific figures
MORE THAN 19,000 downloadable images and animations illustrating key topics
ENGAGING VIDEOS highlighting the life and work of award-winning scientists
SUGGESTIONS FOR FURTHER STUDY and additional readings to guide students to deeper understanding and research
LINKS TO CITABLE LITERATURE help students expand their knowledge using primary sources of information