April 19, 2019

Astro-Events: Stellar Action Near & Far.

Sunspot active region 1520 as seen from Astroguyz HQ on July 10th.

We interrupt our mundane earthbound corner of the galaxy to bring you this exciting installment of the column a tad early to hopefully get your eyes skyward for some exciting astronomical events, both scheduled and unscheduled.

Don’t mess with Active Sunspot Region 1520! (Photo by Author).

First up, massive sunspot group and active region 1520 reaches the center of the solar disk and Earthward firing position around July 12th. This is one of the most massive sunspots seen in recent years and one of the largest thus far for solar cycle #24. As of this writing on July 12th, AR1520 can easily be seen with the unaided (but safely filtered) eye. [Read more...]

14.02.11: Sol Unleashes A Powerful Radio Flare.

Our nearest star unleashed the most powerful solar flare of 2011 thus far yesterday, and amateur and professionals alike were on hand to bear witness to the event. On Sunday, February 13th at approximately 1738 Universal Time, NASA’s Solar Dynamics Observatory detected the burst emanating from the large Earthward facing sunspot group 1158. Likewise, radio amateur astronomers detected a large simultaneous spike in the 19 to 21 MHz frequency range.

[Read more...]