What's the difference between photosphere and photospheric?

Photosphere

Definition:

• (n.) A sphere of light; esp., the luminous envelope of the sun.

Example Sentences:

• (1) Being more than 1,000C colder than the 5,500C of most of the visible Sun's surface, the photosphere, they are darker and stand out by contrast.

Photospheric

Definition:

• (a.) Of or pertaining to the photosphere.

Example Sentences:

• (1) Being more than 1,000C colder than the 5,500C of most of the visible Sun's surface, the photosphere, they are darker and stand out by contrast.