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What are these things called?

Posted: Sun Oct 15, 2017 10:40 pm
by Bruce Girrell
Anatomy of a sunspot
What is the name of the thingies that make up the penumbra of a sunspot?
Thanks

Bruce G.
Sunspot anatomyA.jpg
Sunspot anatomyA.jpg (230 KiB) Viewed 1277 times

Re: What are these things called?

Posted: Mon Oct 16, 2017 12:11 am
by ffellah
Hi Bruce: I believe those are called the sunspot filaments

Franco

Re: What are these things called?

Posted: Mon Oct 16, 2017 9:02 am
by Montana
or penumbral filaments

Alexandra

Re: What are these things called?

Posted: Mon Oct 16, 2017 11:47 am
by Bruce Girrell
Thank you!

Re: What are these things called?

Posted: Mon Oct 16, 2017 6:57 pm
by rbenton
Sensational image, Bruce!

Re: What are these things called?

Posted: Mon Oct 16, 2017 8:16 pm
by Bruce Girrell
rbenton -

I wish it were mine. That one is from NASA. I needed an image that clearly displayed what I was asking about