Components
A number of visual companions to the eclipsing binary have been observed. B has common proper motion with A, but C and D are probably optical.
| Multiple/double star designation: WDS 00473+2416 | ||||||||
|---|---|---|---|---|---|---|---|---|
| Component | Primary | Right ascension (α) |
Declination (δ) |
Epoch of observed separation |
Angular distance from primary |
Position angle (relative to primary) |
Apparent magnitude (V) |
Database reference |
| B | A | 00h 47m 20.2s | +24° 16′ 33″ | 1959 | 32.6″ | 0° | 15.3 | Simbad |
| C | A | 00h 47m 15.2s | +24° 15′ 03″ | 1997 | 97.0″ | 231° | 13.6 | Simbad |
| D | A | 00h 47m 08.9990s | +24° 15′ 33.584″ | 2006 | 155.5″ | 260° | 10.80 | Simbad |
Read more about this topic: Zeta Andromedae
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“Hence, a generative grammar must be a system of rules that can iterate to generate an indefinitely large number of structures. This system of rules can be analyzed into the three major components of a generative grammar: the syntactic, phonological, and semantic components.”
—Noam Chomsky (b. 1928)