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HD 150747


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Dynamics and Forecasting of Two Chaotic Stars
For two stars (R UMi and RS Cyg) believed to behave chaotically, wedemonstrate that nonlinear forecasting is possible over a time horizonof about a year and calculate their future light curves, verifiableafter photometric measurements take place. We find that the minimalembedding dimension of the dynamics of these stars is three. Wetentatively identify the topology of the respective strange attractors,and argue that the presence of a near-2:1 resonance is a directconsequence of the features of these attractors.

The general catalogue of trigonometric [stellar] paralaxes
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Observation and Astrometry data

Constellation:Dragon
Right ascension:16h36m23.26s
Declination:+72°22'25.5"
Apparent magnitude:8.477
Distance:343.643 parsecs
Proper motion RA:1.5
Proper motion Dec:-5.6
B-T magnitude:9.623
V-T magnitude:8.572

Catalogs and designations:
Proper Names   (Edit)
HD 1989HD 150747
TYCHO-2 2000TYC 4423-481-1
USNO-A2.0USNO-A2 1575-03679025
HIPHIP 81307

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