sidereal clock

A sidereal clock to track the time of stars in relation to Earth's rotation.

It is a sidereal clock made in Matthew Boulton's works.

The other difference is that the sidereal clock runs four minutes fast as compared to a regular clock.

If the sidereal clock is precisely synchronized with the stars, the time yields the right ascension directly.

Details: What is a sidereal clock?

In order to measure the position of, for example, a star, the observer needs a sidereal clock in addition to the mural instrument.

A Dent sidereal clock was lent by the Venus Commission.

But with a sidereal clock, there are 24 hourly numbers on the dial instead of 12 and the hour hand goes around only once in a sidereal day.

He set the sidereal clock back more than thirty years, and queried the astronomy programs for solar system positions and velocities of a select group of bodies.

A sidereal clock nestles in one corner and half hidden behind the doorway, is the binnacle from HMS Warspite, veteran of both world wars.

An example of a clock by Frodsham is a sidereal clock clock on display in the Norman Lockyer Observatory.

However, due to variations in the rotation rate of the Earth the rate of an ideal sidereal clock deviates from any simple multiple of a civil clock.

"It's a good thing that we still have a sidereal clock on the control panel," I think to myself, "otherwise it might be tough trying to locate anything in this bright sky."

Of particular note are the displays of silver and ormolu which were made in the manufactory, and the ormolu Sidereal clock made by Boulton and Fothergill, in 1771-72.

Her books outlined a scheme that involved dividing the heavens into more than a million segments as well as a sidereal clock fixed to the position of the Star of Bethlehem at the birth of Jesus.

Rutgers equipped the observatory with "a 6.5-inch equatorial refracting telescope, a meridian circle with four-inch object glass for transit observations, a sidereal clock, a mean solar clock...chronograph, repeating circle, and other instruments."

One can imagine him rolling up to his local branch of the EEF in his periwig to administer the following rocket: “Sirs, while you were knocking a silly ball around with sticks, I have completed a sidereal clock unique in its design and operation.

Wireless time signals were also sent from the Adelaide Observatory, transmitted by the Adelaide Radio Station, to enable the beats of the Adelaide sidereal clock to be used as a control on the rate of the chronometer used for the boundary observation.

Now, if our daily lives were governed by the sidereal clock, there would be times during the year when the sun would appear highest in the sky at noontime, but at other times of the year it would appear highest at midnight or setting at 6 a.m. (or something else strange).