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HD 144481


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Existence of a short period (3.5-4 hours) in the photometric variability of WR66.
We report here on an independent detection of a short period (~4hours)in the photometric variations of WR66, thus confirming in broad termsthe discovery by Antokhin et al.. In addition, we present the firstspectroscopic variability analysis for this star. A few peculiarities ofthe spectrum of WR66 are also discussed. Finally, we perform a briefexamination of different possible origins of the phenomenon.

Longterm Photometry of Variables at ESO - Part Two - the Second Data Catalogue 1986-1990
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1993A&AS..102...79S&db_key=AST

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Observation and Astrometry data

Constellation:Triangulum Australe
Right ascension:16h09m59.18s
Declination:-62°58'01.8"
Apparent magnitude:6.495
Distance:104.384 parsecs
Proper motion RA:-12.7
Proper motion Dec:-61
B-T magnitude:6.773
V-T magnitude:6.518

Catalogs and designations:
Proper Names
HD 1989HD 144481
TYCHO-2 2000TYC 9040-3338-1
USNO-A2.0USNO-A2 0225-24702937
HIPHIP 79208
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