Tag Archives: mass

Mass Killings in USA

Once again there have been media reports of mass killings by gun shots in USA. Actually, they are more or less a daily occurrence now, it is just the reports that are sporadic. Here is a report that shows the … Continue reading

Posted in Social | Tagged , , , , , , | 2 Comments

Stellar Rotation Periods and Stars Age

The Kepler Cluster Study: Stellar Rotation in NGC6811 is a new study resulting from NASA’s Kepler Mission. It has been found that the rotation period of cooler stars is a function of age and mass. This has applications for determining … Continue reading

Posted in astronomy-Solar | Tagged , , , , , | Leave a comment