Do not mix them up
der Sonnenschein
Sonne is the star; Sonnenschein means the visible sunshine and often pleasant weather.
sun
/ˈzɔnə/Die Sonne scheint den ganzen Nachmittag. The sun shines all afternoon. | Case | Singular | Plural |
|---|---|---|
| nominativ | die Sonne | die Sonnen |
| akkusativ | die Sonne | die Sonnen |
| dativ | der Sonne | den Sonnen |
| genitiv | der Sonne | der Sonnen |
Two-syllable noun ending in -e, and historically feminine in Germanic mythology (Sol was a sun goddess).
in der Sonne liegen
die Sonne geht auf

Your own memory picture
What does sun look like to you?
No drawing skills needed.
The word in real life
Sonne can mean the celestial body or its sunlight directly: Wir sitzen in der Sonne.
Do not mix them up
Sonne is the star; Sonnenschein means the visible sunshine and often pleasant weather.
A tiny dialogue
Benni: Kommt heute noch die Sonne heraus?Will the sun come out today?
Luna: Ja, ab Mittag soll es sonnig werden.Yes, it should become sunny from noon.