It’s not “Satan’s celebration”, it’s the winter solstice.
In this sense Lucifer means bringer of light, so calling him to celebrate this seems appropriate tome, as far as archetypes go.
It’s the shortest day of the year in the Northern hemisphere. People did rituals to celebrate the return of the light, since from this day the days get longer again. and though the cold and starvation of winter is not over, hope is renewed.
People living in touch with the land need that. This is why a lightbringer is psychologically relevant… Satan? … the xtian label for ‘enemy of the faith’? it’s got nothing to do with this.
If you want to call on Pan or Cernunnos, I think it would be more respectful to do it by thier names, not under the label xtians gave them trying to defeat them and demonise them, to convert thier people by force, while they deliberately banned, usurped and bastardised thier sacred solstice ceremonies.
However thier days are appropriately in Spring, when growth starts, not in the dead of winter.
And Pan is not a chaos god he’s a fertility god.
I didn’t know Jupiter would be eclipsing Saturn on this years solstice, that’s actually interesting.