Physics Banter - View Single Post - How do Scientists differentiate between Stars & Galaxies?

**Yousuf Khan**

wrote:
In sci.physics Sanny wrote:
When I see sky I only see small stars twinkling at night.

So far, so good.

Now When I see sky with a large telescope I will again see many stars.

Still OK.

How do I know whether a twinkling Object is a Star from our Galxy or
it is some other Galaxy.

I knew it was too good to last.

Get an education. Learn some optics.

Really? A simple question like this deserves such derision? What about
astronomy and physics makes it's participants such hair-trigger
sensitive fascists? He is obviously "getting an education" about this,
as you asked him to, he's asking people here about it. Instead of
telling him to "learn some optics", tell him what it's all about.

Yousuf Khan