Orpington Astronomical Society

Astronomy => Alerts! Questions? Discussions... => Topic started by: Whitters on Jul 02, 2003, 06:43:00

Title: Big sunspot returns
Post by: Whitters on Jul 02, 2003, 06:43:00
SUNSPOT WATCH: Earlier this month a large sunspot ("active region 375")
crossed the Earth-facing side of the sun and unleashed several powerful
solar flares. For the past two weeks it has been out of sight on the far
side of our star, but now sunspot 375 is back.  It reappeared this weekend
near the sun's northeastern limb.

The active region, which is about 10 times wider than our entire planet,
is still an impressive sight through properly-filtered telescopes.  Visit
spaceweather.com for safe solar observing tips and to see recent images of
the emerging spot.

WARNING: Never look at the sun directly with your naked eye or through
unfiltered telescopes or binoculars. Bright sunlight, especially when
focused through a telescope, can damage your eyes.