Here is a spectrum of V745 Sco 10x180s with the Star Analyser 100 in the convergent beam of a 254mm SCT with focal reducer f/6.3, captured with an Atik 383 L+.
Recurrent nova V745 Sco was
reported as having eruptedon 6 Feb. Last outburst was 1989.
- 8 feb.jpg (252.92 KiB) Viewed 4754 times
I've identified the lines with best guesses based on the literature that I've found. Spectra from the first phase of the 1989 outburst are almost identical - these can be found in Williams et al. 1991. The nova clearly has a strong He emission profile. Some interesting nebular lines developed quite quickly in 1989 - it will be interesting to see if they reappear.
The Ha line is very broad - but includes HeII 6678 at this resolution.
Note that the "emission" feature at around 8350 is the zero-order image of a faint background star.
Cheers
Jonathan