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BS Vul - Measures mislabled?

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Ed Wiley_WEY
Affiliation
American Association of Variable Star Observers (AAVSO)
Sun, 05/28/2017 - 00:39

I wa  setting up my June observing list and selected BS Vul. There is a possible problem. VSX and the ephemeris (pdf mislabled as RR Lyrae) list the V mags as 10.9 - 11.6 V. But the data history show variation up to 9.7V. Do we have a probelm, or is BS Vul really brighter than the ephemeris and VSX show?

Ed

Sebastian Otero
Affiliation
American Association of Variable Star Observers (AAVSO)
Sun, 05/28/2017 - 02:25
Corrected range

Hi Ed,
You were right, for some reason the magnitudes inherited from the GCVS (based on a 1938 paper in PZ) were a whole magnitude fainter than V.

I corrected the range and took the chance to improve the ephemeris a bit.

Thanks,
Sebastian