How to prevent stellar object animation's going up?

How to prevent stellar object animation's going up?

References

Reference NO 1

http://stackoverflow.com/questions/15204772/how-to-prevent-stellar-object-animations-going-up

Reference NO 2

http://www.uni.edu/morgans/astro/course/Notes/section2/new9.html

Reference NO 3

http://en.wikipedia.org/wiki/Black_hole

Reference NO 4

http://en.wikipedia.org/wiki/Nebular_hypothesis

Reference NO 5

http://www.studyblue.com/notes/note/n/chapter-141516studydocx/file/6629331

Reference NO 6

https://play.google.com/store/apps/details?id=com.ynotprojects.healthyalarm

Reference NO 7

http://www.indiegogo.com/projects/stitch--11

Reference NO 8

http://www.hookedinmotion.com/?p=27