What is 81000s-sr in Sidereal Hours?

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What is 81000 Sidereal Seconds (81000s-sr) in Sidereal Hours (hr-sr)?

What is 81000s-sr in hr-sr? Convert 81000 Sidereal Seconds (81000s-sr) to Sidereal Hours (hr-sr) and show formula, brief history on the units and quick maths for the conversion.

Enter Sidereal Seconds to convert to Sidereal Hours


Quick Reference for Converting Sidereal Seconds to Sidereal Hours

Formula
hr-sr = s-sr / 3600
Quick Rough Maths
To get the Sidereal Hours, divide the number of Sidereal Seconds by 3.6 thousand
Sidereal Seconds (s-sr) in 1 Sidereal Hour
There are 3600 Sidereal Seconds in 1 Sidereal Hour
Sidereal Hours (hr-sr) in 1 Sidereal Second
There are 0 Sidereal Hours in 1 Sidereal Second

Unit Information

Sidereal Second
/sʌɪˈdɪərɪəlˈsɛk(ə)nd/
Symbol: s-sr
Unit System: SI

What is the Sidereal Second?

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

1 sidereal second is 1/60 of a sidereal minute. 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.

Like with normal seconds, minutes, hours and days, there are still 60 x 60 x 24 seconds in a day, but the day itself is approximately 23 h 56 min and 4.1 s in (normal) seconds.

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.


Conversion Tables for Sidereal Seconds (s-sr) to Sidereal Hours (hr-sr)