Which characteristics can be used to differentiate star systems? Select three options.the number of stars in the systemthe level of dust and gasthe age of the stars in the systemthe way stars are organized in the systemthe color of stars in the system
A/An [___] star system is made of no more than a few thousand stars.
A/An [___] star system is made of more than a million stars.
A/An [___] star system is made of two stars.
[___]
Based on the information in the article, which title would be most appropriate?
Which characteristic is used to classify galaxies?
How are NGC 1427A and U different? How are they the same?
NGC 1427A is larger and has an irregular shape, while U is smaller and shaped like a pinwheel. Both are made of dust, gas, and stars.
Which statement describes the image?
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