Question

how to write it right :
the star had heard or the star have heard ? or something else

Answer 1

It could be 'the star has heard' or 'the star had heard'.

Answer 2

"Had" is the past tense of the verb "to have".
"Has" is the present tense of the verb "to have". Third person singular.
"Have" is the present tense of the verb "to have". Except for the third person singular.

Examples:

I/you/s/he/we/they had a very good holiday.

He has dark hair.

I/you/we/they have a lot of money.

Source: http://forum.wordreference.com/showthread.php?t=353583

Answer 3

Are you sure you need the complex verb? What about "The star heard the rumor."?