The two astronomy terms that are related but opposites are:
1. **Solstice and Equinox:**
- Solstice: Refers to the moment when the sun reaches its highest or lowest point in the sky at noon, resulting in the longest and shortest days of the year.
- Equinox: Refers to the time when the sun crosses the celestial equator, making day and night of equal length. This occurs twice a year.
2. **Ellipse and Eclipse:**
- Ellipse: Refers to an elongated circle or oval shape that describes the path of a celestial body in space.
- Eclipse: Refers to the total or partial obscuring of one celestial body by another or by the shadow of another. It can be a lunar eclipse (Earth's shadow on the moon) or a solar eclipse (moon blocking the sun).
These pairs of terms are related in the field of astronomy but represent opposite phenomena or concepts.
