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| NGC 4670 | 15 Mpc | NGC 3310 | 18 Mpc |
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| Tol1924-416 | 37 Mpc | NGC 3690 | 44 Mpc |
Although starbursts last much less than the age of the universe, it is difficult to directly estimate burst durations. This is because the luminosity of the burst is always dominated by the youngest populations. We are tackling this problem by using the clusters within the starbursts as an archaeological record of the burst history. Clusters can safely be assumed to have formed over a very short duration, unlike the the entire starbursts. Since such clusters fade and redden with age in a very predictable manner one can reconstruct their age distribution from their color distribution. We have obtained time to observe four starbursts with the Hubble Space Telescope using the Wide Field and Planetary Camera 2. The PC portion of the images are shown in the table below. Click on the postage stamp to see a full scale version of the image. Each image is 34 arcsec on a side. The colors have been mixed so that a source having a f(lambda) ~ lambda-1 spectrum has neutral color. The filters used were F336W, F439W and F814W
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| NGC 4670 | 15 Mpc | NGC 3310 | 18 Mpc |
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| Tol1924-416 | 37 Mpc | NGC 3690 | 44 Mpc |
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