Glenn Chaple's observing basics: An asterism by any other name
September 2007: Read about Chaple's Arc, an asterism known by other names.
September 1, 2007
|Last year, I described an eye-catching group of double stars I first found in 1972. While searching with a 3-inch reflector for the double star h1470, I stumbled upon this collection a degree northeast of 25 Cygni. To my surprise and delight, h1470 was in the company of three similar-looking pairs — all arranged in an arc less than a half degree across.|
You are currently not logged in. This article is only available to Astronomy magazine subscribers.
Already a subscriber to Astronomy magazine?
If you are already a subscriber to Astronomy magazine you must log into your account to view this article. If you do not have an account you will
need to regsiter for one. Registration is FREE and only takes a couple minutes.
Non-subscribers, Subscribe TODAY and save!
Get instant access to subscriber content on Astronomy.com!
- Access our interactive Atlas of the Stars
- Get full access to StarDome PLUS
- Columnist articles
- Search and view our equipment review archive
- Receive full access to our Ask Astro answers
- BONUS web extras not included in the magazine
- Much more!