METHOD AND CALENDAR DEVICE FOR DISPLAY ON ANALEMMA DEVIATION OF POSITION OF CENTRE OF REAL SUN FROM MEAN SUN, VERNAL AND AUTUMNAL EQUINOX, SUMMER AND WINTER SOLSTICE

摘要

FIELD: physics.;SUBSTANCE: when realising the method, visual display on an analemma of the deviation of the position of the centre of the real sun from the mean sun, vernal and autumnal equinox, summer and winter solstice is carried out based on data of the equation of the time and daily change of the sun's declination using a mechanical apparatus having models of data of the equation of time and daily change of the sun's declination and a display apparatus interfaced with said models, made with possibility of moving the visually perceptible indicator of the sun on the analemma. The mechanical apparatus used, which is interfaced with a clock mechanism, is made with possibility of turning the models of data of the equation of time and declination and corresponding movement of the indicator of the sun on the analemma, which is made on the face of a clock mechanism and having denotations of calendar periods and dates, vernal and autumnal equinox, summer and winter solstice.;EFFECT: more functionality of clocks through clear demonstration of equation of time.;20 cl, 6 dwg