| ▲ | geuis 2 hours ago | |
Not obvious. Astronomers are actively looking for signatures of exomoons around exoplanets. So "sun plus moon" could mean that too. | ||
| ▲ | xattt an hour ago | parent [-] | |
The OP said moon + sun, rather than sun + moon. We have no idea yet if celestial math is non-communicative. | ||