1. Bhaskaracharya College of Applied Sciences University of Delhi Delhi India
2. Leibniz‐Institut für Astrophysik Potsdam (AIP) Potsdam Germany
3. Leibniz‐Institut für Astrophysik Potsdam (AIP) An der Sternwarte 16 14482 Potsdam Germany
4. Astronomical Institute of the Slovak Academy of Sciences Tatranská Lomnica Slovak Republic