Free
Faster access than browser!

# Sidereal time and Time

## Difference between Sidereal time and Time

### Sidereal time vs. Time

Sidereal time is a timekeeping system that astronomers use to locate celestial objects. Time is the indefinite continued progress of existence and events that occur in apparently irreversible succession from the past through the present to the future.

## Similarities between Sidereal time and Time

Sidereal time and Time have 8 things in common (in Unionpedia): Fixed stars, Lunar month, Solar time, Sun, Sundial, Terrestrial Time, Tropical year, Universal Time.

### Fixed stars

The fixed stars (stellae fixae) comprise the background of astronomical objects that appear to not move relative to each other in the night sky compared to the foreground of Solar System objects that do.

### Lunar month

In lunar calendars, a lunar month is the time between two successive syzygies (new moons or full moons).

### Solar time

Solar time is a calculation of the passage of time based on the position of the Sun in the sky.

### Sun

The Sun is the star at the center of the Solar System.

### Sundial

A sundial is a device that tells the time of day when there is sunlight by the apparent position of the Sun in the sky.

### Terrestrial Time

Terrestrial Time (TT) is a modern astronomical time standard defined by the International Astronomical Union, primarily for time-measurements of astronomical observations made from the surface of Earth.

### Tropical year

A tropical year (also known as a solar year) is the time that the Sun takes to return to the same position in the cycle of seasons, as seen from Earth; for example, the time from vernal equinox to vernal equinox, or from summer solstice to summer solstice.

### Universal Time

Universal Time (UT) is a time standard based on Earth's rotation.

### The list above answers the following questions

• What Sidereal time and Time have in common
• What are the similarities between Sidereal time and Time

## Sidereal time and Time Comparison

Sidereal time has 54 relations, while Time has 350. As they have in common 8, the Jaccard index is 1.98% = 8 / (54 + 350).

## References

This article shows the relationship between Sidereal time and Time. To access each article from which the information was extracted, please visit:

Hey! We are on Facebook now! »