How to make a variable-star estimate
Learn how to make your own light curves so you too can help contribute to the American Association of Variable Star Observers.
April 25, 2011
At its most basic level, variable-star observing is a simple task. First, locate the targeted variable in the sky. Next, find some nearby stars with known magnitudes, which will allow you to make your estimate. Simply compare the target to the known-magnitude stars and estimate how much brighter or dimmer it appears.
The American Association of Variable Star Observers creates charts like this one for T Coronae Borealis to help observers make magnitude estimates. American Association of Variable Star Observers
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!