› Forums › Spectroscopy › Bright possible supernova in NGC6946 › Low resolution spectrum
I was able to get just 10 mins on this object with the modified ALPY 200 before the clouds rolled in last night. This is a bright target for this setup though so it was enough to get a decent low resolution spectrum (R~130). Here is my spectrum overlaid on the confirming spectrum from 14th May posted on TNS.
The Supernova identification program SNID confirms from my spectrum it is a type IIP near maximum light. There have been some significant changes in the spectrum over the past 3 days which is expected.
The blue shifted absorption component of the H alpha P Cygni profile is clear now in my spectrum and can be used to estimate the explosion velocity (~11600km/s)
Cheers
Robin