Hercules A

Hercules A
Radio-Optical View of the Galaxy Hercules A - Many thanks to: NASA, ESA, S. Baum and C. O'Dea (RIT), R. Perley and W. Cotton (NRAO/AUI/NSF), and the Hubble Heritage Team (STScI/AURA)

Monday, May 9, 2011

Beautiful Solar type II and III radio emission

This Solar burst was recorded by the Culgoora Observatory in Australia, in the 18 to 57 plus MHz band, and the STEREO WAVES Beacon data, below 16 MHz.

The space based STEREO A and B observatories also recorded type II radiation (slow negative frequency drift) near 2 MHz, following a type III burst (fast negative frequency drift).

My thanks to the Culgoora and STEREO Observatory Teams. The spectra they publish is a wonderful complement to the charts recorded (at much higher time resolution) with Radio JOVE Educational Program Kits. I greatly enjoy studying all the data, it helps me to better understand the great complexity of Solar radio events.

I hope to study more detailed STEREO spectra in a few days, once the higher resolution data is downloaded from the spacecraft.

The image includes a chart with the positions of the Earth, the STEREO Observatories, and planets Mercury and Venus.

Mercury, Venus, and Jupiter are currently in a lovely conjunction, as seen from the Earth at dawn.