Ring nebula The RSS feed for Ring nebula.

  • Remains of exploded stars

    As the stars (of the size about 1 to 8 solar masses) age, they get bigger and become red giants. In their outer cooler shell, they start to accumulate elements of higher atomic number as a result of the nuclear fusion that fuels the stars. At a certain point, there is an explosion that expels the … read more

  • Stargazings 10-18-08

    It was a quick half hour session with Adit calling me to come in every 5 minutes. A clear and cold night made everything look very beautiful. These sky conditions along with the good quality optics of William Optics Megrez 90 were responsible for excellent viewing with good contrast. Here is what I … read more