what is different between farthest and farthermost?

[galaxy]

Hallo Paul and everyone this morning!

I am sorry for my mistake that i have written wrong words
the right words are"farthest and farthermost" i hope everyone and esp, for Paul who make this program will forgive me. actually i quoted these words from my dictionary i just want to know and i really wonder what is different of these words in use. i also sorry for my writing coz i am not head for english.

galaxy

have a fine day everyone and Paul as well

[galaxy]

Dear Paul

how are you plus your family? i am fantastic too
thanks you anyway that you are mindful of my requests
i hope and expect that i can get your ideas and everyone at any time
and i would like to thank you again for making this

galaxy

have a good day