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