In case anyone is interested in learning more about this star, Dr. Brad Schaefer wrote a nice article about it in the March 2024 issue of Sky and Telescope (subscription required):

https://skyandtelescope.org/sky-and-telescope-magazine/insid...

There is also an open-access journal article from March 2023 that summarizes his research on the system:

https://academic.oup.com/mnras/article/524/2/3146/7077557.

And a blog post announcing the latest estimate for the eruption (2024.4 +/- 0.4):

https://www.aavso.org/news/t-crb-pre-eruption-dip

My organization, the AAVSO, has material that can help you learn how to observe variable stars and make scientifically useful measurements. You can do this by eye, with binoculars, with a telescope, or with various digital sensors. In the case of T CrB, visual observations will yield very useful information. Please see https://www.aavso.org/tutorials and https://www.aavso.org/observing-manuals for more information.