 |
|
| A B C D E F G H I J K L M N O P Q R S T U V W X Y Z |
| • HOME • ABOUT • CATEGORIES • USE OF TEXT AND IMAGES • NEWSLETTER   
|
long-period variable
Usually taken to be another name for a Mira star. In the past, the term was applied more generally to mean any red giant or supergiant pulsating variable with a period of 20 to 1,000 days, including, in addition to Mira variables, semi-regular variables and slow irregular variables. Long-period blue variables are pulsating B stars with periods longer than one day and amplitudes generally less than 0.05 magnitude but occasionally up to 0.1 magnitude.
Related entry
• variable starsRelated category
• TYPES OF STARAlso on this site:
Encyclopedia of Alternative Energy & Sustainable Living
Encyclopedia of History