Astron. Astrophys. Suppl. Ser. 143, 343-355

UBV(RI)c photometric comparison sequences for symbiotic stars

A. Henden¹ - U. Munari²

Send offprint request: U. Munari

1 - Universities Space Research Association/U.S. Naval Observatory Flagstaff Station, P.O. Box 1149, Flagstaff AZ 86002-1149, U.S.A. 2 - Osservatorio Astronomico di Padova, Sede di Asiago, I-36012 Asiago (VI), Italy

Received January 14; accepted January 31, 2000

Abstract:

We present accurate $UBV(RI)_{\rm C}$ photometric sequences around 20 symbiotic stars. The sequences extend over wide brightness and color ranges, and are suited to cover quiescence as well as outburst phases. The sequences are intended to assist both present time photometry as well as measurement of photographic plates from historical archives.

Key words: catalogs -- stars: binaries: symbiotic -- techniques: photometric