helmet streamer

Alternative definitions (0), class: vernacular (0)
Term: helmet streamer

A feature of the white light corona (seen in eclipse or with a coronagraph) that looks like a ray extending away from the Sun out to about 1 solar radius, having an arch-like base containing a cavity usually occupied by a prominence.

Created 2023.04.16
Last Modified 2023.04.16
Contributed by Ryan McGranaghan