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Late superhumps and the stream-disc impact in IY UMa
We use the hotspot eclipse times of the newly discovered deeplyeclipsing dwarf nova IY UMa to trace out the shape of its disc duringthe late superhump era. We find an eccentric disc. We show that thebrightness of the stream-disc impact region varies as expected with|?V|2, where ?V is the relative velocity of thestream with respect to the velocity of the disc at the impact point. Weconclude that the hotspot is the source of late superhump light.
| A revised catalogue of delta Sct stars
An extensive and up-dated list of delta Sct stars is presented here.More than 500 papers, published during the last few years, have beenrevised and 341 new variables have been added to our last list, sixyears ago. This catalogue is intended to be a comprehensive review onthe observational characteristics of all the delta Sct stars known untilnow, including stars contained in earlier catalogues together with othernew discovered variables, covering information published until January2000. In summary, 636 variables, 1149 references and 182 individualnotes are presented in this new list. Tables 1 and 2 will be accessibleonly in electronic form at the CDS via anonymous ftp tocdsarc.u-strasbg.fr (130.79.128.5) or viahttp://cdsweb.u-strasbg.fr/Abstract.html
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Not Available
| A catalogue of variable stars in the lower instability strip.
Identifications, positions, photometry, spectra, some pulsationalfeatures, other astrophysical parameters and literature for 302pulsating variable stars in the lower instability strip, near the ZAMS,are given. About 185 stars have near homogeneous photometric informationin the Stroemgren's uvby-β photometric system. Thiscatalogue/database covers information published until November 1993.
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| The 71st Name-List of Variable Stars
Not Available
| HD 59594 - A new Delta Scuti variable star
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Observation and Astrometry data
| Constellation: | とも座 |
| Right ascension: | 07h29m17.14s |
| Declination: | -34°10'17.1" |
| Apparent magnitude: | 7.324 |
| Distance: | 101.626 parsecs |
| Proper motion RA: | -27.3 |
| Proper motion Dec: | 4.2 |
| B-T magnitude: | 7.57 |
| V-T magnitude: | 7.345 |
Catalogs and designations:
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INHABITED SKY
