| 词条 | RU Andromedae |
| 释义 |
| name = RU Andromedae | constell = Andromeda | ra = {{RA|01|38|37}}[1] | dec = {{DEC|38|40|12}}[1] | appmag_v = 9.9 to 14.5[3] | class = M5e-M6e[3] | names = | Simbad = V*+RU+And }}RU Andromedae is a variable star in the constellation of Andromeda. It is classified as a semiregular variable pulsating giant star, and varies from an apparent visual magnitude of 14.5 at minimum brightness to a magnitude of 9.9 at maximum brightness, with a period of approximately 238.3 days.[2] References1. ^1 {{SIMBAD link|V*+RU+And|V* RU And -- Semiregular Pulsating Variable Star}}, database entry, SIMBAD. Accessed on line 2009-06-30. {{Stars of Andromeda}}{{Var-star-stub}}2. ^1 2 RU And, database entry, Combined General Catalog of Variable Stars (GCVS4.2, 2004 Ed.), N. N. Samus, O. V. Durlevich, et al., CDS ID II/250 Accessed on line 2009-06-30. 4 : Semiregular variable stars|Andromeda (constellation)|M-type giants|Objects with variable star designations |
| 随便看 |
|
开放百科全书收录14589846条英语、德语、日语等多语种百科知识，基本涵盖了大多数领域的百科知识，是一部内容自由、开放的电子版国际百科全书。