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| Crab nebula |
a nebula in the constellation Taurus that contains a pulsar. |
| Horsehead nebula |
a dark nebula located in the constellation Orion. |
| nebula |
a similar luminous mass of stars too far away to be seen as individual bodies; galactic nebula. [1/2 definitions] |
| nebular hypothesis |
a theory stating that the solar system was once a nebula that cooled and condensed to form the sun and planets. |
| nebulosity |
the matter or form of a nebula. [2 definitions] |
| Taurus |
a winter zodiacal constellation located between Aries and Gemini and near Orion, and containing the bright star Aldebaran, the Crab Nebula, and two star clusters, the Pleiades and the Hyades; Bull. [1/3 definitions] |
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