Variable Star RTCrB
RT CrB = AN 1911.0047 = BD +29 2690 = HD 139588
Nonlinear term: +2.01d*10**(-8)*E**2. Min II 10.52 (var). DII = 0.09P.
GCVS NOTES fulltext search:
Please put the variable's designation into field in common style - for example: ZUMa, zuma, V477Cyg, v1182Cyg, NSV 255, nsv2544. Designation of bright variable stars like Beta Persei type in short style (three letters) - bet Per. The complete cross-identification among more then 30 catalogues will be done after submitting. Spaces and cases are ingnored..