Here is the full list of all 86 Astral Ascent achievements.
Activate all abilities of the Void Catalyst at once
Success an escape at Destiny Level 15+
Reach level 12
8 stones of each type equipped simultaneously
Unlock Ayla’s ending
Buy all items from an Itinerant Peddler
Defeat Pisces at Destiny Level 6+
Unlock Kiran’s ending
Defeat Gemini at Destiny Level 6+
Collect 100 Destiny Fragments
Unlock Octave’s ending
Defeat Libra at Destiny Level 6+
Defeat Scorpio at Destiny Level 6+
Defeat Sagittarius at Destiny Level 6+
Defeat Virgo at Destiny Level 6+
Unlock all Zim-Zim abilities
Open 150 Key Chests
Defeat 30 Star Guardians
Defeat Leo at Destiny Level 6+
Defeat Capricorn at Destiny Level 6+
Find the hidden nest in the Garden
Unlock Calie’s ending
Defeat The Master at Destiny Level 6+
Defeat Aquarius at Destiny Level 6+
Defeat Cancer at Destiny Level 6+
Defeat Aries at Destiny Level 6+
Defeat Taurus at Destiny Level 6+
Use 200 Stars in a run
Defeat Scorpio
Complete 50% of Sire Bapy’s achievements
Defeat Libra
Save all Yalees from the Kingdom
Your Zodiac sign helps you 3 times
Perfect 30 Fight Rooms
Captured 5 Astral Spirits
Defeat Aquarius
Defeat Sculptor
Use your Signature Spell 500 times
Equip a Zodiac Spell in The Moon Room
Unlock Calie
Defeat Leo
Unlock Octave
Unlock Oloon
Summon a Zodiac to support you
Obtain 1000 Quartz in a run
Defeat Hydra
Defeat Pisces
Equip an Astral Gambit
Defeat Pegasus
Unlock the Path of Destiny
Face The Master
Upgrade a spell to level 10
Reach the Event Horizon
Defeat Gemini
Change a Spell affinity in The Sun Room
Defeat Monoceros
Reach the Crimson Highlands
Defeat Cancer
Defeat Sagittarius
Equip 4 affinity gambits on a spell
Meet Chamaeleon
Defeat Capricorn
Defeat Draco
Unlock Barbecue
Unlock Papa Yalee
Start 30 escape attempts
Unlock Sire Bapy
Reach 1000 damage in one combo
Success a Zodiac Challenge
Defeat Virgo
Defeat Lupus
Unlock the Peddler
Reach the Coral Archipelago
Defeat Aries
Reach the Red Barrens
Defeat Taurus
Equip an Astral Aura
Unlock Zim-Zim
Reach the Garden
Obtain 5 Echoes in a run
Trigger 12 dialogues on Benches
Unlock all Auras from Barbecue
Unlock all spells from the Peddler
Unlock all Oloon colors
Collect all memory fragments for Papa Yalee
Upgrade a spell to level 15