"Redguard" introduced the major constellations with a rather intricate puzzle involving figuring out where each of them was in relation to the others. "Morrowind" incorporates these constellations into a characteristic called a "Birth Sign." Those born under particular constellations (kind of like the zodiac) gain certain abilities, powers or spells. The manual that came with the game gives a decent general description of what you gain by being born under a particular sign, but here are the exact details. Again, abilities are always active, powers may be used once per day and spells go into your spell book.
| BIRTH SIGN | EFFECT |
| The Apprentice | Abilities: Fortify Magicka (1.5 x INT), Weakness to Magicka (50%) |
| The Atronach | Abilities: Fortify Magicka (2.0 x INT), Spell Absorption (50 pts), Stunted Magicka (cannot regenerate Magicka points) |
| The Lady | Abilities: Fortify END (25 pts), Fortify PER (25 pts) |
| The Lord | Abilities: Weakness to Fire (100%) Spells: Restore Health (2 pts for 30 seconds on Self) |
| The Lover | Abilities: Fortify AGI (25 pts) Powers: Lover's Kiss (Paralyze 60 seconds on Target; Drain Fatigue 200 pts on Self) |
| The Mage | Abilities: Fortify Magicka (0.5 x INT) |
| The Ritual | Powers: Mara's Gift (Restore Health 100 pts on Self) Spells: Blessed Word (Turn Undead 100 pts for 30 seconds on Target); Blessed Touch (Turn Undead 100 pts for 30 seconds on Touch) |
| The Serpent | Spells: Star-Curse (Poison 3 pts for 30 seconds on Touch; Damage Health 1 pt for 30 seconds on Self) |
| The Shadow | Powers: Moon Shadow (Invisibility for 60 seconds) |
| The Steed | Abilities: Fortify SPD (25 pts) |
| The Thief | Abilities: Akaviri Danger Sense (Sanctuary 10 pts) |
| The Tower | Spells: Beggar's Nose (Detect Animal/Enchantment/Key 200 ft. for 60 seconds); Tower Key (Open 50 pts on Touch) |
| The Warrior | Abilities: Fortify Attack (10 pts) |