Star Shell

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A star shell is a type of firework or artillery shell that contains a flare or other illuminant. Here's a breakdown of what it is and how it's used:
In Artillery:

• Purpose: Used during warfare, primarily for illuminating battlefields at night. They can also be used for signaling.
• Mechanism: When fired, a star shell bursts at a set height. It ignites a magnesium flare, and a parachute helps the shell slowly fall to earth, providing extended illumination.
• Duration: Illumination flares typically burn for about 60 seconds.
• Modern Use: Modern versions include infrared illumination to enhance night-vision devices.

• Purpose: Used to create visual displays.
• Mechanism: Aerial star shells are fired from mortar tubes and can reach heights of up to 250 meters. A delay fuse ignites the bursting charge at the peak of its flight, creating a large display of stars.
• Stars: The "stars" within a firework shell are small, pellet-like components that burn to create colors, patterns, and effects. The size, shape, and composition of these stars determine the firework's appearance.
• Variations:
• Parachute Shell: Contains sub-components that descend by parachute.
• Spherical Shell: A round shell with colored stars or comets.
• Cylindrical Shell: Cylinder-shaped, often containing larger effects.
• Multibreak Shell: Contains several elements with timed fuses for sequential bursts.
• Peanut Shell: Two round shells stacked together.
• Shell of Shells: A larger shell containing multiple smaller shells.
• Burst Size: The burst from a large star shell can create a canopy of stars up to 150 meters wide.