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AsteriaStar
Observing technique

Image Stacking

Combining many exposures of the same field to build up signal and average down noise, reaching far fainter objects than any single frame — the foundation of deep imaging, from amateur astrophotography to the deepest survey fields.

Knowledge connections

Sources

The primary and reference sources this topic draws on.

  • NSF NOIRLabNSF National Optical-Infrared Astronomy Research Laboratory

    Ground-based optical/infrared observatory data and imagery.