In a message dated 10/18/2003 1:04:47 PM Central Daylight Time, starkey73@mchsi.com writes:
What part of the spectrum of V475 Sct is of interest to you? What features in the spectrum would indicate that the nova has entered a nebular phase?
Donn:
I am not an expert on novae spectrum, but, I'll give you my two cents worth. In the visible region, 5000-6000 Angstrom (roughly), initially the nova shows more of a continuum spectrum. Therefore, the CCDV and visible (your eye) measurements pretty much agree. As the nova evolves it enters the nebular phase and more emission lines become prominent (He II, Mg, O III, Fe II, Ne II, ...) when compared to the continuum. In this phase, the CCDV observations tend to be fainter than the visual observations.
Novae experts lurking on the list, need your input here to clarify my ramblings.
Thanks,
Doug West
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