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Hi Greg,

The Current bright novae/supernovae lists Nova Sgr 2020 No. 4 as mag 5.5. Is this correct, or another case similar to what occurred with RX And? It would be cool if there's a nova visible to the naked eye. It's less than 2.5° from the Trifid nebula & M 21.

Phil S.
No that's a bug. The code saw a minor increase in brightness last November and determined that it was a rising classical nova that had not peaked yet. As a result it estimated a very bright magnitude. I will have this fixed later today by updating the data. But I want to hold off on that for a bit so I can determine what went wrong and fix the code itself.
Sad  is this the same issue that made RX And look spectacular?

Phil S.
(2021-02-04, 06:56 PM)PMSchu Wrote: [ -> ]Sad  is this the same issue that made RX And look spectacular?

Phil S.

Yes. It has to do with the fact that the available data just stops in November. So its extrapolating a long time into the future. I have made the code more robust so this sort of things should not happen again.