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HD 27036


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UBV photometry of HD stars in the fields of selected cataclysmic variables.
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Multiwavelength monitoring of the dwarf nova VW Hydri. II - Walraven photometry
Five-color Walraven photometric observations of VW Hyi were obtainedbetween July and November 1984. Significant orbital variations in theV-B, B-U, and B-L colors are detected which are mainly connected withthe presence of an orbital hump. No evidence is found for a secularvariation between outbursts in either the average flux or the orbitalmaximum and minimum fluxes, and little evidence is found for a seculartrend in the shape of the orbital light curves between outbursts. Theflux ratio across the Balmer jump is shown to change during a quiescenceinterval between outbursts, and results suggest a secular change in theshape of the B-U and U-W orbital color curves through quiescence. Theonset of normal outbursts is found to be progressively delayed towardsshorter wavelengths, in agreement with IUE observations.

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Observation and Astrometry data

Constellation:Hydre mâle
Right ascension:04h10m20.15s
Declination:-71°20'38.6"
Apparent magnitude:9.409
Proper motion RA:-45.4
Proper motion Dec:-103.6
B-T magnitude:10.266
V-T magnitude:9.48

Catalogs and designations:
Proper Names   (Edit)
HD 1989HD 27036
TYCHO-2 2000TYC 9156-1595-1
USNO-A2.0USNO-A2 0150-01671527
HIPHIP 19479

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