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Automatic alignment of multi-temporal images of planetary nebulae using local optimization

Hajian, Arsen R.; Kazemzadeh, Farnoud

Automatic alignment of time-separated astronomical images have historically proven to be difficult. The main reason for this difficulty is the amount of sporadic and unpredictable noise associated with astronomical images. A few examples of these effects are: image distortion due to optics, cosmic ray hits, transient background sources (super nova…