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| DR6 Projects | ||
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| Basic | ||
| - Scavenger Hunt | ||
| - The Universe | ||
| - Asteroids | ||
| - Types of Stars | ||
| - Color | ||
| - Galaxies | ||
| Advanced | ||
| Research Challenges | ||
| For Kids | ||
| User Activities | ||
| Games and Contests | ||
| Links to Others | ||
Lenticular Galaxies
Lenticular galaxies are sometimes called "armless spiral galaxies." Lenticular galaxies have a central bulge, but no spiral arms. If the central bulge is not very bright, it can be very difficult to tell the difference between a lenticular galaxy and an E0 galaxy. Just like spiral galaxies, some lenticular galaxies have a bar. They are called "barred lenticular galaxies" and are denoted SB0. Normal lenticular galaxies are denoted S0.
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