Osservazioni visuali della variabile V449 Cygni nel 1999

Details Osservazioni visuali della variabile V449 Cygni nel 1999 Osservazioni visuali della variabile V449 Cygni nel 1999

Sep 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001asuai...5....4l&link_type=abstract

Astronomia. La rivista dell'Unione Astrofili Italiani (ISSN 0392-2308), N. 5, p. 4 - 5 (settembre-ottobre 2001)

Astronomy and Astrophysics

Astronomy

Variables: Observations

Scientific paper

A set of 97 visual observations of the Lb-type variable star V449 Cyg, obtained in 1999 by UAI observers, has been analysed by the Algol software (GEOS). Three epochs of maxima, and one minimum have been determined. Amplitude and period are coherent with those found in literature. The light curve corrected with the aid of an Artificial Neural Network (ANN) technique seems to confirm the probable SRb nature of the star. The author hopes that future observations, photoelectric measures and long temporal coverage will allow a frequency analysis by ANN.

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