VECTORPOINT

Opening your observatory…

Find the structures in STEVE

Follow photographers' observations of a strange sky ribbon, from wide views to fine structure and questions that remain in atmospheric research.

What to keep in mind

These photographs record different events and exposure lengths. The Childs Lake panorama combines eleven exposures; the actual 2022 event clip is separate from the explanatory discovery film.

Separate the structures

Compare the Strathmore and Fort Frances views. Where do green features accompany the pale arc, and where are they absent? Keep their ten- and four-second exposures in view.

Watch the fine structure

In the actual August 2022 excerpt, which details change within the glow? Describe visible motion without assigning a mechanism from colour alone.

Compare the wide views

What can the Crossfield photograph show that is harder to distinguish in the stitched Childs Lake panorama, and vice versa? Avoid treating these different events as consecutive frames.