sentences:  For instance, they may be due to a type II-p supernova; alternatively, supernovae undergoing a high level of extinction will naturally be both red and of low luminosity.In 2017 KIC 9832227, a binary star system, was predicted to merge and produce a red nova by early 2022.In September 2018, a typo was discovered in data used for the initial prediction, and it was determined that the merger would likely not take place at the predicted time.