SIMBAD references

2009PZ.....29....1A - Perem. Zvezdy, 29, 1 (2009/June-0)

UBV photometry of the post-AGB star IRAS 22272+5435=V354 Lac in 1990-2008.


Abstract (from CDS):

New UBV photometry obtained in 2000 - 2008 is presented for the post-AGB star IRAS 22272+5435 = V354 Lac. The star showed semi-regular light variations with varying amplitudes. The maximal amplitude did not exceed: Delta V = 0.5, Delta B = 0.7, and Delta U = 1.0. For 2000 - 2008, we have found a photometric period near 128 days. The analysis of long-term observations in 1990 - 2008 reveals variations with two close periods: 128 and 131 days, causing amplitude modulation. The V -(B-V) diagram shows a clear correlation: the star is generally bluer when brighter. From our UBV data, we derive E(B-V)=0.5 and conclude that the spectral type of the star varies between K1 and K7 during pulsations. The mean UBV data for V354 Lac have not changed during the past 19 years: <V> = 8.60, <(B-V)> = 2.06, and <(U-B)> = 2.14.

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VizieR on-line data: <Available at CDS (J/other/PZ/29.1): table.dat>

Simbad objects: 5

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