A report on the spectroscopic and multi-color photometric observations of high galactic latitude classical nova KT Eridani ( Nova Eridani 2009 ) is presented .
After 12.2 days from maximum light , broad and prominent emission lines of Balmer series , He I , He II , N II , N III and O I can be seen on the spectra .
The FWHM of H { \alpha } line yields an expansion velocity of approximately 3400 km s ^ { -1 } .
After 279.4 days from maximum light , we can see prominent emission lines of He II and [ O III ] on the spectrum .
Among them , [ O III ] ( 4959 , 5007 ) lines show multiple peaks .
From the obtained light curve , KT Eri is classified to be a very fast nova , with a decline rate by two magnitude of 6.2 \pm 0.3 days and three of 14.3 \pm 0.7 days .
We tried to estimate the absolute magnitude ( M _ { V } ) using the Maximum Magnitude versus Rate of Decline relationship and distance of KT Eri .
The calculated M _ { V } is approximately -9 .
Accordingly , the distance and galactic height are approximately 7 kpc and 4 kpc , respectively .
Hence , KT Eri is concluded to be located outside of the galactic disk .