Auroras, streaks, and rare colours~!

[MissNeona]

Seems like there's an influx of activity!

 

What is the rarest colour in your opinion?

Seems like the skypainters are back with fervour, hoping to see much more activity since it is projected to increase.

This was interesting, too.

What would be your favourite sky incident to see?

https://www.indiatoday.in/science/story/mysterious-purple-beam-streaks-across-europe-it-was-not-an-aurora-2458757-2023-11-06

Does anybody know what the streaks are or do people just call them Steve?

[Newbie]

On 11/7/2023 at 9:30 AM, MissNeona said:

Seems like there's an influx of activity!

 

What is the rarest colour in your opinion?

Seems like the skypainters are back with fervour, hoping to see much more activity since it is projected to increase.

This was interesting, too.

What would be your favourite sky incident to see?

https://www.indiatoday.in/science/story/mysterious-purple-beam-streaks-across-europe-it-was-not-an-aurora-2458757-2023-11-06

Does anybody know what the streaks are or do people just call them Steve?

This looks like a typical example of STEVE. Strong Thermal Emission Velocity Enhancement. It is not produced in the same way an aurora is. 
STEVE is caused by a ribbon of hot gases rather than particles like electrons and protons like the auroras. 

It’s probably more appropriate to ask this question in Geomagnetic Activity 😊 
There is a thread “Red Aurora” The information there addresses your question.

With respect to aurora colours blue is considered rare as are violet and pink. Nitrogen is responsible for blue / violet.

N.