stars – Page 2 – National Radio Astronomy Observatory

Can a Planet Orbit One Star in a Binary Star System?

Yes. Planets that orbit a single star in a binary star system are called “non-circumbinary planets”. In general, a…

The ocean on Earth gets its blue color due to the fact that it absorbs light from the red…

Since the light from a distant star is a point source for any measurement that we want to make,…

This is actually an application of spherical trigonometry. A good description of this calculation, including an online tool to…

I believe that in the article that you are referring to the authors are suggesting that the rotation axis…

In general, I believe that the term “star cluster” refers to gravitationally-bound associations of thousands of stars, while the…

The National Radio Astronomy Observatory is a facility of the U.S. National Science Foundation operated under cooperative agreement by Associated Universities, Inc.
	Founded in 1956, the NRAO provides state-of-the-art radio telescope facilities for use by the international scientific community. NRAO telescopes are open to all astronomers regardless of institutional or national affiliation. Observing time on NRAO telescopes is available on a competitive basis to qualified scientists after evaluation of research proposals on the basis of scientific merit, the capability of the instruments to do the work, and the availability of the telescope during the requested time. NRAO also provides both formal and informal programs in education and public outreach for teachers, students, the general public, and the media.
	The U.S. National Science Foundation (NSF) is an independent federal agency created by Congress in 1950 "to promote the progress of science; to advance the national health, prosperity, and welfare; to secure the national defense..."
	AUI collaborates with the scientific community and research sponsors to plan, build, and operate cutting-edge facilities. We cultivate excellence, deliver value, enhance education, and engage the public.