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| DR3 Projects | ||
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| Basic | ||
| Advanced | ||
| - Hubble Diagram | ||
| - Color | ||
| - Spectral Types | ||
| - H-R Diagram | ||
| - Galaxies | ||
| - Sky Surveys | ||
| - Quasars | ||
| - Image Processing | ||
| Challenges | ||
| For Kids | ||
| Games and Contests | ||
| Links to Others | ||
| Spectral Types | ||
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| Your Classifications | ||
| Energy Levels | ||
| Spectral Lines | ||
| Identifying | ||
| Other Types | ||
| Follow Up Projects | ||
| Your Results | ||
Your ResultsE-mail us your findings and we might post them on these pages! |
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