sprite halo

sprite halo (plural sprite halos or sprite haloes)

1. (astronomy, meteorology) An upper-atmospheric optical phenomenon associated with thunderstorms, diffuse disk-shaped glows that precede sprites and propagate downward.
   • 2006, Martin Füllekrug, Eugene A. Mareev, Michael J. Rycroft, Sprites, elves and intense lightning discharges‎, page 37:

     In lhe: early days of LLTV monitoring it was common to observe an apparent elve followed by a sprite, sometimes called a "sprelve." While elves do indeed precede some sprites, the "sprelve" in most cases, was found to represent a "sprite halo."

• blue starter
• bluejet
• elve
• gigantic jet
• gnome
• pixie
• red sprite
• sprelve
• sprite
• transient luminous events
• troll
• upward lightning

• astrophile, hospitaler, trophesial