stellar evolution

Michael. "Late stages of evolution for low-mass stars". Rochester Institute of Technology. Retrieved 2006-08-04. "Stellar Evolution & Death". NASA Observatorium

Gillessen, S.; et al. (2009). "Monitoring stellar orbits around the massive black hole in the Galactic Center"."Stellar populations in the Galactic bulge. Modelling

{{cite journal}}: Invalid |ref=harv (help) Harpaz, Amos (1994). Stellar evolution. A K Peters, Ltd. p. 105. ISBN 1-568-81012-1. Oppenheimer, J. R. and

Thibault Lejeune, Sydney Barnes (2001). "Toward Better Age Estimates for Stellar Populations: The Y 2 {\displaystyle Y^{2}} Isochrones for Solar Mixture"

decades for the excess nitrogen to condense out of the atmosphere. Another stellar occultation was observed by the MIT-Williams College team of James Elliot