Tristan's Star: 15m Shooting Star Detector

This script is designed to be used on the 1-minute chart, but it analyzes the market as if you were watching the 15-minute candles.

Every cluster of 15 one-minute candles is grouped together and treated as a single 15-minute candle.

When that 15-minute “synthetic” candle looks like a shooting star pattern (small body near the low, long upper wick, short lower wick, bearish bias), the script triggers a signal.

At the close of that 15-minute cluster, the script will:

• Plot a single “Sell” label on the last 1-minute bar of the group.
  
• Draw a horizontal line across the 15 bars at the high, showing the level that created the shooting star.
  
• Optionally display a table cell in the corner with the word “SELL.”
  

This lets you stay on the 1-minute timeframe for precision entries and exits, while still being alerted when the higher-timeframe (15-minute) shows a bearish reversal pattern.