Definition of asterism in English:
1 Astronomy A prominent pattern or group of stars that is smaller than a constellation.
- Orion contains an asterism or well-known star pattern called the ‘saucepan’ or ‘iron pot’.
- They're located about 15° west-northwest of the bright red star Aldebaran, which in turn is at the end of one of the arms of a V-shaped asterism, the Hyades open cluster, which points southwest.
- Orion and the Great Bear are two of the most prominent asterisms visible from the northern hemisphere.
Late 16th century: from Greek asterismos, from astēr 'star'.
Definition of asterism in:
- US English dictionary
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