Convert Minutes (min) to Sidereal Hours (hr-sr) | min in hr-sr

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# Let's convert Minutes (min) to Sidereal Hours (hr-sr)

This quick and easy calculator will convert Minutes (min) to Sidereal Hours (hr-sr) and show formula, brief history on the units and quick maths for the conversion.

## Quick Reference for Converting Minutes to Sidereal Hours

Formula
hr-sr = min / 59.84
Quick Rough Maths
To get the Sidereal Hours, divide the number of Minutes by 59.8
Minutes (min) in 1 Sidereal Hour
There are 59.84 Minutes in 1 Sidereal Hour
Sidereal Hours (hr-sr) in 1 Minute
There are 0.02 Sidereal Hours in 1 Minute

## Unit Information

Minute
/ˈmɪnɪt/
Symbol: min
Unit System: SI

### What is the Minute?

The minute is a unit of time and is a multiple of an SI base unit with the symbol m.

There are 60 seconds in a minute. There are 60 minutes in an hour.

The Iranian scholar and polymath Al-Biruni who lived through the Islamic Golden Age (circa 1000 AD) was the first to split the hour sexagesimally (by 60) and introduced what we now understand as the “minute”.

It is understood in modern society to represent a relatively short amount of time – and is used very commonly in language to ask for a short break; hence the phrase “wait a minute”, “uno momento” and “un moment s’il vous plait”.

Sidereal Hour
/sʌɪˈdɪərɪəlˈaʊə/
Symbol: hr-sr
Unit System: SI

### What is the Sidereal Hour?

The sidereal hour is a unit of time used by astronomers and is derived from the SI unit system. We have used the symbol hr-sr.

1 sidereal hour is made up of 60 sidereal minutes. This is derived ultimately from the sidereal day which is the time taken (in solar seconds) for the Earth to complete one rotation with respect to a distant star or constellation.

The sidereal hour angle is used when calculating sidereal time which is actually the angle along the celestial equator; from where one stands to the great circle that travels through the March equinox and both celestial poles.