©
Tommi R: Active area in the sun v1
©
Tommi R: Active area in the sun v2
©
Tommi R: Solar activity inverted
©
Tommi R: Solar protuberances
©
Tommi R: Solar activity
©
Tommi R: Empty sun in H-alpha
©
Tommi R: H-alpha equipment, description below.
©
Tommi R: Autumn sun
©
Tommi R: Sun on 2016-07-25
©
Tommi R: Sun
©
Tommi R: Protuberance
©
Tommi R: Sun in H-alpha
©
Tommi R: Sun - link to animations in comments
©
Tommi R: H-alpha sun and protuberances
©
Tommi R: H-alpha sun and protuberances
©
Tommi R: Earth, H-alpha sun and protuberances
©
Tommi R: Our sun: H-alpha and CaK collage
©
Tommi R: Labeled H-alpha and CaK collage