Object:	Sunspot AR2529
Date & Site:	09:40 am local time on April 17, 2016; Carlsbad, CA
Equipment:	Telescope: Lunt 100mm Ha Telescope Mount: Losmandy G-11 with Gemini Camera: Point Grey Grasshopper USB3 CMOS Video Camera TeleVue 2.5x Powermate Barlow 0.7 Angstrom bandwidth hydrogen-alpha filter with an 18mm blocking filter
Notes:	This image was created from the best 20% of a single 1000-frame video at 105 frames/second. This large sunspot, labeled AR2529 has been visible on the sun's surface for over a week. Visually, sunspots appear dark (bright white in this inverted image) because their temperatures are significantly cooler than the surrounding surface (4500 versus 6000 degrees Celcius). Sunspots are associated with solar flares and coronal mass ejections. AR2529 has produced only modest CMEs. More on AR2529 click here Back to Images