English Deutsch Français Italiano Español Português 繁體中文 Bahasa Indonesia Tiếng Việt ภาษาไทย
All categories

3 answers

A loaded question. It depends on whether you are talking about the gas disk or the star disk, and also how you define the "edge." The diameter is commonly represented as around 30,000 parsecs but without defining the parameters I mentioned above, I am unsure how meaningful this bit of trivia is.
(FYI, it is a bit easier to select an "edge" to the stellar disk, because star density suddenly falls off pretty dramatically at some point. The hydrogen disk density fall off is more even.)

2006-09-04 09:04:27 · answer #1 · answered by Mr. Quark 5 · 0 0

The diameter of the disk is about 100,000 light-years

2006-09-04 16:05:06 · answer #2 · answered by roshpi 3 · 1 0

100,000 light years

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

2006-09-04 17:21:19 · answer #3 · answered by Anonymous · 0 0

fedest.com, questions and answers