T CrB observations in 1866, 1946 and now

I gave a talk on June 5 2024 to ASSA about the imminent nova T Corona Borealis.

One of the things I showed (reproducing a result from Brad Schaefer’s 2023 paper) was the similarity between the light curves around the eruptions of 1866 and 1946. The VStar plot below shows visual band data for the two eruptions in which the difference between the two eruption peaks has been added to the times of the 1866 observations.

I also showed the similarity between observations leading up to the 1946 eruption (the rise and dip) and recent observations:

and the two overlaid:

How much time remains before the next eruption is uncertain, but the signs are that it’s only weeks or in the worst case, a few months away.

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