Active Region 2546

Sketch of sunspot AR 2546 by Deirdre Kelleghan, May 15, 2016 1:25-2:30 UT.

Active Region 2546 May 15, 2016 1:25-2:30 UT. Credit: Deirdre Kelleghan

Sketch details
40mm PST, FL 400mm, 10mm eyepiece, 40X
Pastels and Conte on black card.
Bray Co Wicklow Ireland

The image of the Sun below was taken at the same time as Deirdre’s sketch by cameras on NASA’s Solar Dynamics Observatory (SDO), an orbiting space telescope that watches the Sun continuously in multiple frequencies. -RJT

Active Region 2546 – May 15 2016 1429UT. Courtesy of NASA/SDO and the AIA, EVE, and HMI science teams.

AR2546 is very large, and the region has let off several C-class flares.

Active Region 2546 (left), and AR2544 (right) – May 16 2016 1700UT. Courtesy of NASA/SDO and the AIA, EVE, and HMI science teams.

Please Welcome our new Blogger: Deirdre Kelleghan! Deirdre is a well-known amateur astronomer in Ireland. She loves sketching astronomical objects, and doing astronomy outreach with children. -RJT.