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story and the laws controlling them. And historionomers will have measured accurately the sidereal years of races. Lowell.

Hour plate, the plate of a timepiece on which the hours are marked; the dial. Locke. -- Sidereal hour, the twenty-fourth part of a sidereal day. -- Solar hour, the twenty-fourth part of a solar day. -- The small hours, the early hours of the morning, as one o'clock, two o'clock, etc. -- To keep good hours, to be r…

The Australian Eucalyptus Sideroxylon, used largely by carpenters and shipbuilders; -- called also ironwood.

An herb of the Mint family (Sideritis), supposed to heal sword cuts; also, a species of Galeopsis.

in contradistinction from apparent time, or that actually indicated by the sun, and from sidereal time, or that measured by the stars.

time of revolution from one node to the same again, in length 27 d. 5 h. 5 m. 36 s.; the sidereal, or time of revolution from a star to the same again, equal to 27 d. 7 h. 43 m. 11.5 s.; the anomalistic, or time of revolution from perigee to perigee again, in length 27 d. 13 h. 18 m. 37.4 s.; and the tropical, or time…

in, or to a point relatively the same; -- designated as the annual, anomalistic, nodical, sidereal, or tropical revolution, according as the point of return or completion has a fixed relation to the year, the anomaly, the nodes, the stars, or the tropics; as, the revolution of the earth about the sun; the revolution of…

l; late. These changes in the heavens, though slow, produced Like change on sea and land, sidereal blast. Milton.

ounding with spar; having a confused crystalline structure; spathose. Sparry iron (Min.), siderite. See Siderite (a). -- Sparry limestone (Min.), a coarsely crystalline marble.

Like spar; foliated or lamellar; spathose. Spathic iron (Min.), siderite. See Siderite (a).

Siderite occuring in spheroidal masses.

ys, 5 hours, 48 minutes, 46.0 seconds, which is 20 minutes, 23.3 seconds shorter than the sidereal year, on account of the precession of the equinoxes.

ean distance from the sun of about 67,000,000 miles. Its diameter is 7,700 miles, and its sidereal period 224.7 days. As the morning star, it was called by the ancients Lucifer; as the evening star, Hesperus.

year, above. -- Platonic year, Sabbatical year. See under Platonic, and Sabbatical. -- Sidereal year, the time in which the sun, departing from any fixed star, returns to the same. This is 365 days, 6 hours, 9 minutes, and 9.3 seconds. -- Tropical year. See under Tropical. -- Year and a day (O. Eng. Law), a time t…