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HD 92077


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New Times of Minima of Eclipsing Binary Systems
We present 58 photoelectric minima observations of 19 eclipsingbinaries.

Period Change and Surface Activity of the Eclipsing Binary UV Leonis
From Johnson B and V photometric measurements of V=8.98 mag eclipsingbinary UV Leonis we calculated the epochs of primary and secondaryminima, which we used to complement the published O-C catalog by Kreineret al. (2000). From this we give a brief analysis of the observed periodchange and give qualitative presumptions about the physics that mighthave caused such a change. Further on, we use the observed systematicvertical shift in light curves as an indication of the surface activityof UV Leonis.

A Photometric Analysis and SPOT Model of the Detached Eclipsing Binary UV Leonis
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1996AJ....111.2081F&db_key=AST

Eclipsing system UV Leo.
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1966AJ.....71..536M&db_key=AST

Osservazioni fotoelettriche di due variabili a eclisse
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Observation and Astrometry data

Constellation:Lion
Right ascension:10h38m05.88s
Declination:+14°07'20.7"
Apparent magnitude:9.222
Proper motion RA:-8.7
Proper motion Dec:10.5
B-T magnitude:10.527
V-T magnitude:9.33

Catalogs and designations:
Proper Names   (Edit)
HD 1989HD 92077
TYCHO-2 2000TYC 845-73-1
USNO-A2.0USNO-A2 0975-06536573
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