Is it possible to observe Polaris and the Southern Cross from the equator during an equinox Is it possible for an observer at Earth's equator to simultaneously observe Polaris and the Southern Cross during an equinox?
The March equinox would be a good time to see both; the September equinox would not.
Crux
lies roughly between RA 12h to 13h, Dec -55$^\circ$ to -65$^\circ$.
For best results, be at latitude 10-15$^\circ$ N so that both Crux and Polaris are well above the horizon, and look between 11:00 and 14:00 local
sidereal time
so that Crux is near the meridian.
That would be around midnight in March-April, late evening in May, wee hours in February, or daytime in July-December.