11 august 1999

PSPT Red (607.2 nm)

PSPT CaII K (393.3 nm)

 

 

 

 

 

 

 

29 march 2006

PSPT CaII K (393.3 nm)

 

PSPT Blue (409,4 nm)

PSPT Red (607.2 nm)

 

 

 

 

 

 

 

 

20 march 2015

PSPT CaII K (393.3 nm)

 

 

 

 

PSPT Red (607.2 nm)