SUNSPOT APPROACHES THE DANGER ZONE

Big, active sunspot AR3738 is approaching “the danger zone”- a region of the sun magnetically connected to Earth via the Parker Spiral. If the sunspot explodes today or tomorrow, it could send a fusillade of energetic protons spiraling toward Earth. Such “proton storms” can fog cameras on Earth-orbiting satellites and reboot their computers. Proton storm alerts: SMS Text

Venus mediated Yesterday

VENUS IN FULL: Like the Moon, Venus has phases. There is one phase, however, that astronomers rarely see: Full. The 100% disk of Venus can be devilishly difficult to observe because it only appears when Venus is behind the sun. On July 13th, Patricio Leon photographed the full disk in a blue winter sky over Santiago, Chile:

I located the planet by optical means when it was close to transiting the meridian at noon,” says Leon. “In round numbers it presents a 100% phase, measures 10 arcseconds in diameter, and lies 10° east of the sun.”

This won’t last long. Venus is emerging from the glare of the sun to renew its position as the Evening Star. As the second half of 2024 unfolds, it will shape-shift into a gibbous, half, then crescent easily seen in the twilight sky. If you decide to catch the rare Full Venus, do so now, but be careful! The blinding sun is only 10° away.

Leave a Reply

This site uses Akismet to reduce spam. Learn how your comment data is processed.