Image of the day

From the
ATWB Customer Gallery

Scorpion and Jupiter, August 07

My Account

New to Astromart?

Register an account...

Need Help?

TALL Prom on the Sun!

Started by Steve OK, 10/26/2010 09:20AM
Posted 10/26/2010 09:20AM Opening Post
At 11:00 AM CDT...I just came in from viewing the sun in white light, and in H-alpha. Sunspot 1117 is very cool in white light, lots of intricate detail. I can see 1117 with the naked eye (through my sun filter of course), so it is huge. There is very tall, straight prominence on the limb in H-a, maybe 1/8 of a solar diameter tall!