The Cosmos in Focus

Find out what's new in astronomy, cosmology, astrophotography, and related Science & Technology as well as general posts on all of these things, and more! This section is simply a list of articles and such that don't belong elsewhere.

Or check out my latest Equipment List if you want to focus on the gear instead.

Useful Web Sites

Some useful web sites to help you plan your Astrophotography sessions.

learn
Pixel sizes (and why they matter)

Why are we obsessed with megapixels when we should be obsessed with pixel size?

camera learn
Parallax Arc Seconds

British astronomer Herbert Hall Turner combined the words "parallax" and "second" in 1913 and created the term 'parsec."

learn