Observing basics
黄道光
Zodiacal light
Sunlight scattered by interplanetary dust, a faint cone.
Only visible from very dark sites, after dusk in spring or autumn.
Related terms
- Averted vision — Looking slightly off-target to use rod-rich retina.
- Red light — Reading charts under red light to keep dark adaptation.
- Pickering scale — A 1–10 scale for how steady a star looks.
- Transit — An inner planet crossing the Sun's disc.