What is 69000hr in Sidereal Seconds?

You are: Home > Time > Hours to Sidereal Seconds

What is 69000 Hours (69000hr) in Sidereal Seconds (s-sr)?

What is 69000hr in s-sr? Convert 69000 Hours (69000hr) to Sidereal Seconds (s-sr) and show formula, brief history on the units and quick maths for the conversion.

Enter Hours to convert to Sidereal Seconds


Quick Reference for Converting Hours to Sidereal Seconds

Formula
s-sr = hr x 3609.86
Quick Rough Maths
To get the Sidereal Seconds, multiply the number of Hours by 3.6 thousand
Hours (hr) in 1 Sidereal Second
There are 0 Hours in 1 Sidereal Second
Sidereal Seconds (s-sr) in 1 Hour
There are 3609.86 Sidereal Seconds in 1 Hour

Unit Information

Hour
/ˈaʊə/
Symbol: hr
Unit System: SI

What is the Hour?

The hour is a unit of time and is a multiple of an SI base unit with the symbol hr.

There are 60 seconds in a minute and 60 minutes in an hour. Consequently, there are 3600 seconds in an hour.

In a mean solar day, there are 24 hours.

Originally in the Middle East, the hour was defined as 1/12 of the day or night time. However, seasonal factors clearly affected all of these definitions and an average is used today to normalise and allow calculations.

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.


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