calculating in physics (unit of measure)

[shahar]

What is the unit a stand for?
(I know that d is stand for days)
Mercury - 88d
Venus - 224.4d
Earth - 365d = 1a
Mars = 1.88a
Jupiter = 11.86a
Saturn - 29.46a
and etc.
What is a...?

 

[Romsek]

a appears to be a unit of time equal to an Earth year.

 

[Dr.Peterson]

The abbreviation a is short for Latin "annus", meaning year.

See table 5 here, and the second paragraph above 5.13 that says more. Also, see Wikipedia (second paragraph).

 

[Deleted member 4993]

What is the unit a stand for?
(I know that d is stand for days)
Mercury - .................... 88d
Venus - .......................224.4d
Earth - ........................365d = 1a
Mars ...........................1.88a
Jupiter ....................... 11.86a
Saturn ........................29.46a
and etc.
What is a...?

Mercury - .................... 88d
Venus - .......................224.4d
Earth - ........................365d = 1a
Mars ...........................1.88a
Jupiter ....................... 11.86a
Saturn ........................29.46a
and etc.
Your "question" tells you that - read carefully!