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HD 202481


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A catalogue of eclipsing variables
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Stars with the Largest Hipparcos Photometric Amplitudes
A list of the 2027 stars that have the largest photometric amplitudes inHipparcos Photometry shows that most variable stars are all Miras. Thepercentage of variable types change as a function of amplitude. Thiscompilation should also be of value to photometrists looking forrelatively unstudied, but large amplitude stars.

Two-colour photometry for 9473 components of close Hipparcos double and multiple stars
Using observations obtained with the Tycho instrument of the ESAHipparcos satellite, a two-colour photometry is produced for componentsof more than 7 000 Hipparcos double and multiple stars with angularseparations 0.1 to 2.5 arcsec. We publish 9473 components of 5173systems with separations above 0.3 arcsec. The majority of them did nothave Tycho photometry in the Hipparcos catalogue. The magnitudes arederived in the Tycho B_T and V_T passbands, similar to the Johnsonpassbands. Photometrically resolved components of the binaries withstatistically significant trigonometric parallaxes can be put on an HRdiagram, the majority of them for the first time. Based on observationsmade with the ESA Hipparcos satellite.

The 74th Special Name-list of Variable Stars
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Observation and Astrometry data

Constellation:Microscope
Right ascension:21h16m55.70s
Declination:-28°36'17.1"
Apparent magnitude:10.186
Proper motion RA:-77.7
Proper motion Dec:-37.6
B-T magnitude:11.057
V-T magnitude:10.258

Catalogs and designations:
Proper Names   (Edit)
HD 1989HD 202481
TYCHO-2 2000TYC 6949-320-1
USNO-A2.0USNO-A2 0600-43430592
HIPHIP 105058

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