A morning star is a three-candle bullish reversal pattern that appears after a downtrend: a long bearish candle, then a small-bodied candle (often gapped lower) that signals indecision, then a strong bullish candle that closes well into the body of the first. The sequence pictures selling pressure stalling, balancing, and then flipping to buying.
Its bearish twin is the evening star — the same three-beat structure inverted at the top of an uptrend. The middle candle is the heart of the pattern: a small body, sometimes a doji, marking the pause where momentum runs out before the third candle confirms the turn. Conventionally the third candle should close at least halfway up the first to qualify.
Three-candle patterns are richer than single bars but appear less often and still depend heavily on location and the exact qualifying rules (gap required or not, how deep the third close must reach). Pin those down before testing, because loose definitions inflate the apparent count and the apparent edge.