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Tom and Jennifer Polakis | all galleries >> Galleries >> CCD Images > Hubble's Variable Nebula Time-Lapse: 22 Frames, 24 Weeks
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Hubble's Variable Nebula Time-Lapse: 22 Frames, 24 Weeks

This time-lapse sequence shows changes in Hubble's Variable Nebula over the course of a half year with an interval of roughly one week. Images are averaged 5-minute exposures taken with a 12.5-inch f/6.7 telescope in Tempe, Arizona. Native image scale is 0.88 arcsec/pixel, but it was doubled in post-processing.


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