Solar active region(AR) 11283 is a very magnetically complex region and it has produced many eruptions. However, there exists a non-eruptive filament in the pla
We present Hα emission line measurements of the W80 nebula complex. A total of 26 regions have been observed inside the nebula with the Dual Etalon FabryPerot
Asteroseismology is a powerful tool used for detecting the inner structure of stars,which is also widely used to study white dwarfs.We discuss the asteroseismol