| 28 | 421 9 0 | 28 | 7 1 9 | 58 | 14 32 23 | | 29 | 436 11 28 | 29 | 7 16 11 | 59 | 14 47 26 | | 30 | 451 13 56 | 30 | 7 31 14 | 60 | 15 2 28 | +-----+-----------+-----+------------+-----+------------+ Accelerations of the Fixed Stars. +----+----------+ | D. | H. M. S. | +----+----------+ | 1 | 0 3 56 | | 2 | 0 7 52 | | 3 | 0 11 48 | | 4 | 0 15 44 | | 5 | 0 19 39 | +----+----------+ | 6 | 0 23 35 | | 7 | 0 27 31 | | 8 | 0 31 27 | | 9 | 0 35 23 | | 10 | 0 39 19 | +----+----------+ | 11 | 0 43 15 | | 12 | 0 47 11 | | 13 | 0 51 7 | | 14 | 0 55 3 | | 15 | 0 58 58 | +----+----------+ | 16 | 1 2 54 | | 17 | 1 6 50 | | 18 | 1 10 46 | | 19 | 1 14 42 | | 20 | 1 18 38 | +----+----------+ | 21 | 1 22 34 | | 22 | 1 26 30 | | 23 | 1 30 26 | | 24 | 1 34 22 | | 25 | 1 38 17 | +----+----------+ | 26 | 1 42 13 | | 27 | 1 46 9 | | 28 | 1 50 5 | | 29 | 1 54 1 | | 30 | 1 57 57 | +----+----------+ [Sidenote: PLATE III. An absolute Turn of the Earth on it’s Axis never finishes a solar day. Fig. II.] 222. Thus it is plain, that an absolute turn of the Earth on it’s Axis (which is always completed when the same Meridian comes to be parallel to it’s situation at any time of the day before) never brings the same Meridian round from the Sun to the Sun again; but that the Earth requires as much more than one turn on it’s Axis to finish a natural day, as it has gone forward in that time; which, at a mean state is a 365th part of a Circle. Hence, in 365 days the Earth turns 366 times round it’s Axis; and therefore, as a turn of the Earth on it’s Axis compleats a sidereal day, there must be one sidereal day more in a year than the number of solar days, be the number what it will, on the Earth, or any other Planet. One turn being lost with respect to the number of solar days in a year, by the Planet’s going round the Sun; just as it would be lost to a traveller, who, in going round the Earth, would lose one day by following the apparent diurnal motion of the Sun: and consequently, would reckon one day less at his return (let him take what time he would to go round the Earth) than those who remained all the while at the place from which he set out. So, if there were two Earths revolving equably on their Axes, and if one remained at _A_ until the other travelled round the Sun from _A_ to _A_ again, _that_ Earth which kept it’s place at _A_ would have it’s solar and sidereal days always of the same length; and so, would have one solar day more than the other at it’s return. Hence, if the Earth turned but once round it’s Axis in a year, and if _that_ turn was made the same way as the Earth goes round the Sun, there would be continual day on one side of the Earth, and continual night on the other. [Sidenote: To know by the Stars whether a Clock goes true or not.]