We analyze the effect of (1) coronal holes (CHs) and (2) energetic coronal mass ejection (CME) events on the observed brightness of the images. (slideshare.net)
Stellar surface fusion occurs above a star's photosphere to a limited extent as found in studies of near coronal cloud activity. (wikiversity.org)
20012
April 2001), "Stellar and circumstellar activity of the Be star mu Centauri. (wikipedia.org)
Subsequently, the total area of storm activity in 2001 was roughly double that of the previous year. (wiley.com)
Period3
Mu Centauri is a pulsating variable star that has multiple non-radial cycles with a primary period of 0.503 days. (wikipedia.org)
Three other pulsation cycles have a similar period, while two have a shorter interval of about 0.28 days. (wikipedia.org)
Acknowledgments I have used Peranso for light curve and period analysis during the program's whole development cycle. (manualzilla.com)
Measurements1
Adding cloud type and height would allow us to make better use of cloudy-night sky brightness measurements. (skythisweek.info)
Area1
Then a brightness developed merging them together into one big bright area with no discernable details. (aber.ac.uk)
Star3
The magnetic activity on this star shows an unusually long period of variability, cycling about once every 23 years. (wikipedia.org)
This is classified as an Ap/Bp star, with a peculiar spectrum showing lines of chromium and europium that change in intensity over a period matching the variability cycle, although opposite in phase. (wikipedia.org)
The rate of star formation in galaxies and central black hole accretion activity was highest between 10 and 11 billion years ago. (skythisweek.info)