Step 1:

Start a new document of size 200¡Á200 pix.
Fill the background with black colour.

Step 2:

Use this brush to draw star on to the black background.

It will look like this

Step 3:
Let¡¯s create some blue nebula
Create a new layer and press ¡®d¡¯ to reset the colour to photoshop default

now go to filters>Render>clouds

Step 4:

Let¡¯s some hue/saturation

go to Image>Adjust>Hue/saturation and use the following settings

we have the images like this

Step 5:

Let¡¯s lower the opacity of this layer so that the starfiled layer becomes visible at the background.

That¡¯s all we are done a galxy with stars and nebula effect.

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