Astronomy for Beginners
Here’s where you’ll find observing guides, how-to articles and great astronomy hints and tips. Don’t forget to also check out our comprehensive astronomy dictionary.
These are the faint rainbow bands seen on the inner edge of a rainbow. They appear when rain droplets in the rainbow are comparatively small and of a similar diameter to each other.
A telescope that contains both lenses and mirrors to focus light. Catadioptric telescopes include both Maksutov- and Schmidt-Cassegrain models.
The period during which a planet is best placed for observation.