Binary star has 4 syllables.
| # | Sentence | |
|---|---|---|
| 1. | A symbiotic star system is a binary star system that is composed of a red giant and a white dwarf. | |
| 2. | Sirius is a binary star system. Sirius B, Sirius A's faint companion, is the white dwarf closest to our solar system. It is about as big as our earth. | |
| 3. | Sirius is a binary star system and is about 8.6 light-years distant from our sun. |