What's new in the Showcase?
The latest image from Dennis Roscoe! Here is his processed picture
of M8, the Lagoon Nebula taken with his TOA-130F f/5.3 telescope and
STF-8300M camera. It is a narrowband image with a total
exposure time of 7 hours - 2hr Ha, 2hr SII, and 3hr OIII.
And if you'd like to learn how Dennis does this magic, he's teaching
a course in September at UW-Waukesha that all are welcome.
Click here for details.
The full moon on August 10th was called the supermoon, but as you
can see from the images above, it's misleading. These three
images represent the moon at it's largest (the so-called super),
it's average, and smallest sizes. To the naked-eye, it's
hardly noticeable. Read
about it in Astronomy Magazine.