# year (sidereal) to octaeteris conversion

Conversion number between year (sidereal) [a, y, or yr] and octaeteris is 0.12500217761944. This means, that year (sidereal) is smaller unit than octaeteris.

### Contents [show][hide]

Switch to reverse conversion:
from octaeteris to year (sidereal) conversion

### Enter the number in year (sidereal):

Decimal Fraction Exponential Expression
 [a, y, or yr]
eg.: 10.12345 or 1.123e5

Result in octaeteris

?
 precision 0 1 2 3 4 5 6 7 8 9 [info] Decimal: Exponential:

### Calculation process of conversion value

• 1 year (sidereal) = (31558149.7635456) / (252460800) = 0.12500217761944 octaeteris
• 1 octaeteris = (252460800) / (31558149.7635456) = 7.9998606347838 year (sidereal)
• ? year (sidereal) × (31558149.7635456  ("s"/"year (sidereal)")) / (252460800  ("s"/"octaeteris")) = ? octaeteris

### High precision conversion

If conversion between year (sidereal) to second and second to octaeteris is exactly definied, high precision conversion from year (sidereal) to octaeteris is enabled.

Since definition contain rounded number(s) too, there is no sense for high precision calculation, but if you want, you can enable it. Keep in mind, that converted number will be inaccurate due this rounding error!

### year (sidereal) to octaeteris conversion chart

 Start value: [year (sidereal)] Step size [year (sidereal)] How many lines? (max 100)

visual:
year (sidereal)octaeteris
00
101.2500217761944
202.5000435523888
303.7500653285832
405.0000871047775
506.2501088809719
607.5001306571663
708.7501524333607
8010.000174209555
9011.250195985749
10012.500217761944
11013.750239538138
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## Multiple conversion

Enter numbers in year (sidereal) and click convert button.
One number per line.

Converted numbers in octaeteris:
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## Details about year (sidereal) and octaeteris units:

Convert Year (sidereal) to other unit:

### year (sidereal)

Definition of year (sidereal) unit: ≈ 365.256363004 d. Sidereal year is a time taken for Sun to return to the same position with respect to the stars of the celestial sphere, approximately 365.256363 days.

Convert Octaeteris to other unit:

### octaeteris

Definition of octaeteris unit: = 2922 d. In astronomy, an octaeteris is the period of eight solar years after which the moon phase occurs on the same day of the year plus one or two days. = 48 mo (full) + 48 mo (hollow) + 3 mo (full) = 8 a of 365.25 d = 2922 d = 252.4608 Ms

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