| Dictionary, Encyclopedia and Thesaurus - The Free Dictionary 3,921,104,855 visitors served. |
Dictionary/ thesaurus | Medical dictionary | Legal dictionary | Financial dictionary | Acronyms | Idioms | Encyclopedia | Wikipedia encyclopedia | ? |
RR Lyrae stars |
0.01 sec. |
|
|
RR Lyrae stars [¦är¦är ′lī·rē ‚stärz]
(astronomy) Pulsating variable stars with a period of 0.05-1.2 days in the halo population of the Milky Way Galaxy; color is white, and they are mostly stars of spectral class A. Also known as cluster cepheids; cluster variables. Want to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit the webmaster's page for free fun content. |
|
| Mentioned in | ? | References in periodicals archive | ? | Encyclopedia browser | ? | Full browser | ? | |||
|---|---|---|---|---|---|---|---|---|---|---|
No references found | Oosterhoff found that in some globular clusters, the RR Lyrae stars take longer to pulsate, on average, than in other clusters. Another team, which includes Zeljko Ivezic of Princeton University, used the Sloan survey to examine a second group of elderly objects, known as RR Lyrae stars. They deduced that RR Lyrae stars in several globular clusters are brighter and younger than had been assumed. |
RR Lyrae stars |
rqrmnt RQRP RQRPA RQS RQSCL RQSM RQSP RQT RQTAO RQTC Rqtect Rqtect Rqtect RQTH RQTOX RQV RQW RQWF RQWL RQY RQYS RQZ RR RR RR RR RR Donnelley Logistics RR GRD RR Lyrae RR Lyrae RR Lyrae stars RR MORR&C RR&DD RR&EO RR&OE RR&TP RR- RR-LIS RR-MO RR-NR RR-R RR-S RR-TMA RR-ZFBF RR/EO RR/P RR1 RR3 RR6 RR64 RRA RRA RRAA RRAB RRAC | |||||||
| Encyclopedia |
| Free Tools: |
For surfers:
Free toolbar & extensions |
Word of the Day |
Help
For webmasters: Free content | Linking | Lookup box | Double-click lookup |
|---|