Wednesday, November 30, 2005
Saturday, November 05, 2005
Julian (Old Style)
Julian Date = 367K - <(7(K+<(M+9)/12>))/4> + <(275M)/9> + L + 1721013.5 + UT/24 - 0.5sign(100K+M-190002.5) + 0.5
K=Year (YYYY)
L=Day
M=Month
"< >" extracts the integral part of a number
For e.g. 3.999 -> 3, 1.002 -> 1
And the "Sign" function extracts the algebraic sign from a number. Its either -1 or 1.
For e.g. sign(2548484)= 1 and sign(-2151851)= -1
UT refers to the Universal Time. M'sia is UT+8. For other time zones you can refer to http://www.timeanddate.com
For e.g. 27th July 1986 5am in Julian would be 2446624
728862 - 3491 + 213 + 26 + 1721013.5 + 21/24 -0.5(1) + 0.5 = ~2446624
Strictly speaking the HD would be 2446624.375, but the decimal point makes things messy.
Note: Although this example is calculating the 27th, the day used in the equation could also be the 26th or the 28th depending on the UT at Greenwich. Same goes for the time in the equation.
Reference: http://aa.usno.navy.mil/faq/docs/JD_Formula.html
K=Year (YYYY)
L=Day
M=Month
"< >" extracts the integral part of a number
For e.g. 3.999 -> 3, 1.002 -> 1
And the "Sign" function extracts the algebraic sign from a number. Its either -1 or 1.
For e.g. sign(2548484)= 1 and sign(-2151851)= -1
UT refers to the Universal Time. M'sia is UT+8. For other time zones you can refer to http://www.timeanddate.com
For e.g. 27th July 1986 5am in Julian would be 2446624
728862 - 3491 + 213 + 26 + 1721013.5 + 21/24 -0.5(1) + 0.5 = ~2446624
Strictly speaking the HD would be 2446624.375, but the decimal point makes things messy.
Note: Although this example is calculating the 27th, the day used in the equation could also be the 26th or the 28th depending on the UT at Greenwich. Same goes for the time in the equation.
Reference: http://aa.usno.navy.mil/faq/docs/JD_Formula.html
Thursday, November 03, 2005
Theme's of the moment
If you love someone, set them free and never lose hope that they return
When in doubt, give them the benefit of it- we owe them that little faith at least
We are but mortals, vulnerable to deceit, fear, jealousy, stupidity, anger, temptation and all else the devil deals
...the greatest harm can result from the best intentions - Terry Goodkind
...magic in forgiveness...magic to heal. In the forgiveness you grant, and more so in the forgiveness you receive. - Terry Goodkind
Everyones yearns for perfection. Most make compromises. Some go through life in their quest for perfection without compromise, but few ever find their holy grail. The sad thing is to find it and then lose it.
M.L.R.O. mostly
When in doubt, give them the benefit of it- we owe them that little faith at least
We are but mortals, vulnerable to deceit, fear, jealousy, stupidity, anger, temptation and all else the devil deals
...the greatest harm can result from the best intentions - Terry Goodkind
...magic in forgiveness...magic to heal. In the forgiveness you grant, and more so in the forgiveness you receive. - Terry Goodkind
Everyones yearns for perfection. Most make compromises. Some go through life in their quest for perfection without compromise, but few ever find their holy grail. The sad thing is to find it and then lose it.
M.L.R.O. mostly