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Photometry Showing HD 219989 is an Eclipsing Binary
Photometry Showing HD 219989 is an Eclipsing Binary
1984
R. C. Crawford
S. I. Ingvarsson
Louis J. Boyd
Russell Merle Genet
W. S. Barksdale
W. T. Persinger
Hugh Powell
Walter J. Bisard
H. J. Stelzer
Darrel B. Hoff
A. M. Heiser
Douglas S. Hall
Francis C. Fekel
Keywords:
Binary number
Astronomy
Photometry (optics)
Contact binary
Physics
Correction
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