3 χρόνια του Ήλιου μέσα σε 3 λεπτά, Three Years of SDO Images

This image, is a composite of 25 separate images spanning the period of April 16, 2012 to April 15, 2013. It uses the SDO AIA wavelength of 171 Angstroms and reveals the zones on the sun where active regions are most common during this part of the solar cycle. This version maintains the original aspect ratio of the AIA instrument imagery. Credit: NASA's Goddard Space Flight Center/SDO/S. Wiessinger

Από την άνοιξη του 2010, το Solar Dynamics Observatory (SDO) της NASA, παρακολουθεί ανελλιπώς τη δραστηριότητα του Ήλιου. Το βίντεο που ακολουθεί συμπυκνώνει μέσα σε τρία λεπτά τις παρατηρήσεις τριών ετών:

There are several noteworthy events that appear briefly in this video. They include the two partial eclipses of the sun by the moon, two roll maneuvers, the largest flare of this solar cycle, comet Lovejoy, and the transit of Venus. The specific time for each event is listed below, but a sharp-eyed observer may see some while the video is playing.

00:30;24 Partial eclipse by the moon

00:31;16 Roll maneuver

01:11;02 August 9, 2011 X6.9 Flare, currently the largest of this solar cycle

01:28;07 Comet Lovejoy, December 15, 2011

01:42;29 Roll Maneuver

01:51;07 Transit of Venus, June 5, 2012

02:28;13 Partial eclipse by the moon