Astrology
This page is out of date (v1.1). |
Astrology is a skill that provides passive buffs to various other skills in the game similar to the Agility skill.
Modifiers will be unlocked as you level up your mastery in each constellation, and the buff can be upgraded by spending
Stardust or
Golden Stardust to level up that buff to a maximum level of 5 for
Golden Stardust buffs and 8 for
Stardust buffs.
Mechanics
Leveling Astrology involves Studying various Constellations, starting with the Deedree Constellation at level 1. Studying has a base interval of 3 seconds per action. Studying does not cost any resources and provides Astrology experience and Mastery experience for the Constellation after each action.
Each Study action also has a chance to provide Stardust,
Golden Stardust, or to (
) discover a Meteorite.
Acquiring Stardust
Both Stardust and
Golden Stardust are exclusively obtained from Astrology. Both are acquired at random while studying constellations, where Stardust and Golden Stardust drops with a 5% and 2% chance per action respectively.
The rate at which stardust may be acquired can be increased by:
- Decreasing the action interval
Secret Stardust Potion reduces the action interval by 3/5/10/15% depending on the potion's tier. Note that since the potions themselves use Stardust as an ingredient, maximizing the
Herblore preservation and doubling chances before creating any of these potions is highly recommended.
Variel reduces the action interval by 5%.
Superior Astrology Skillcape reduces the action interval by 10%.
Owl +
Eagle Synergy reduces the action interval by 10%
Owl itself provides 5% interval reduction, so equipping the synergy gives a total of 15% action interval reduction.
- Increasing the drop chance
Stardust:
- The 25% Mastery pool checkpoint provides a +5% bonus to the drop chance
Variel provides a +2% bonus
Rosaniya provides a +4% bonus
Golden Stardust:
- The 50% Mastery pool checkpoint provides a +3% bonus to the drop chance
- The 95% Mastery pool checkpoint provides a +2% bonus
Astro provides a +1% bonus
Variel provides a +2.5% bonus
Meteorite Ore:
- The 95% Mastery pool checkpoint provides a +2% bonus
Variel provides a +0.5% bonus
- Increasing the drop quantity
- Equipping
Astrology Skillcape provides a +1 bonus to the quantity of both Stardust and Golden Stardust that is dropped.
Equipping
Superior Astrology Skillcape provides a +2 bonus to the quantity of both Stardust and Golden Stardust that is dropped.
- Both types of Stardust are affected by doubling modifiers, such as:
Aorpheat's Signet Ring
- Some
Agility courses
The
Mastery Level 40 star in
Rosaniya
- Equipping
Modifiers
Each Constellation starts with 6 predetermined Stars (modifiers) that are unlocked by increasing the Mastery Level of the Constellation. Upgrading Stars that provide standard modifiers costs
Stardust, while upgrading Stars that provide unique modifiers costs
Golden Stardust. The modifier starts at 0, so you need to use the appropriate type of Stardust to benefit from a Stars modifiers.
The maximum amount of upgrades you can put into a Star modifier is determined by the type of modifier. Normal modifiers can go up to level 8, whereas unique modifiers can only go up to level 5.
Each upgrade gives a linear increase to the bonus.
The first upgrade needs 10 Stardust or 50
Golden Stardust. With each upgrade, the cost of
Stardust or
Golden Stardust will double, resulting in the last upgrade of a star costing 1,280
Stardust or 800
Golden Stardust.
Each standard modifier requires 2550 Stardust to max out, while each unique modifier requires 1550
Golden Stardust to max out. This results in a total of 84,150
Stardust (
114,750
Stardust) and 51,150
Golden Stardust (
69,750
Golden Stardust) needed to max out every modifier in astrology.
Despite the wording Unique Modifier, the modifiers do stack with similar types of modifiers, e.g. Deedree's
Mastery Level 20 star (up to +5% Farming Yield) stacks with the +3% Farming Yield from
Bob's Gloves
Mastery Unlocks
Item Mastery Unlocks
Level | Unlock |
---|---|
20 | Unlock another Star (Unique Modifier) |
40 | Unlock another Star (Standard Modifier) |
60 | Unlock another Star (Unique Modifier) |
80 | Unlock another Star (Standard Modifier) |
99 | Unlock another Star (Unique Modifier) |
Mastery Pool Checkpoints
Pool % | Pool XP | Bonus |
---|---|---|
10% | 750,000 xp | +5% increased Astrology Mastery XP |
25% | 1,875,000 xp | +5% chance to find Stardust |
50% | 3,750,000 xp | +3% chance to find Golden Stardust |
95% | 7,125,000 xp | +2% chance to find Golden Stardust and Meteorites |
Total Mastery Pool XP | 7,500,000 |
Skillcape
The skillcape can be purchased from the store for 1,000,000 after the player reaches
Level 99.
The superior skillcape can be purchased from the store for 10,000,000 after the player reaches
Level 120.
Skillcape | Name | Requirements | Effect |
---|---|---|---|
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Astrology Skillcape | +1 to base drop quantity of Stardust and Golden Stardust from Astrology | |
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+2 to base drop quantity of Stardust and Golden Stardust from Astrology -10% Astrology Interval |
Pet
The pet can be unlocked by doing any Astrology action.
Pet | Name | Effect |
---|---|---|
Astro | +1% chance to locate Golden Stardust in Astrology |
Constellations
The bonuses listed below are the maximum possible.
Constellation | XP | Skills | Standard Stars | Unique Stars | ||||
---|---|---|---|---|---|---|---|---|
Modifiers | Modifiers | |||||||
Deedree | 1 | 5 | 1 | +8% Woodcutting Skill XP +8% Farming Skill XP |
20 | +5% Bird Nest drop rate | ||
40 | +8% Woodcutting Mastery XP +8% Farming Mastery XP |
60 | +5% Farming Yield | |||||
80 | +8% Chance to Double Items in Woodcutting +8% Chance to Double Items in Farming |
99 | +5% chance to receive Stardust when cutting Magic Logs in Woodcutting (Quantity equal to Logs received) | |||||
Iridan | 10 | 13 | 1 | +8% Attack Skill XP +8% Global Accuracy |
20 | +5 Hidden Attack Level | ||
40 | +8% Smithing Skill XP +8% Smithing Mastery XP |
60 | -5% Smithing Interval | |||||
80 | +8% Chance to Double Items in Smithing | 99 | +5% of Maximum Hit added to Minimum Hit | |||||
Ameria | 20 | 21 | 1 | +8% Fishing Skill XP +8% Firemaking Skill XP |
20 | +5% chance to receive Special Items from Fishing | ||
40 | +8% Fishing Mastery XP +8% Firemaking Mastery XP |
60 | -5% Fishing Interval -5% Firemaking Interval | |||||
80 | +8% Chance to Double Items in Fishing +8% Chance to Double Items in Firemaking |
99 | +5% chance to receive a Diamond per action in Firemaking (Cannot be doubled) | |||||
Terra | 30 | 29 | 1 | +8% Strength Skill XP +8% Global Accuracy |
20 | +5 Hidden Strength Level +5% Melee Strength Bonus from Equipment | ||
40 | +8% Mining Skill XP +8% Mining Mastery XP |
60 | +5% Chance to receive gems from Mining (Does not work for Rune Essence) | |||||
80 | +8% Chance to Double Items in Mining | 99 | +5% chance to do zero damage to Ores and Rune Essence | |||||
Vale | 40 | 37 | 1 | +8% Hitpoints Skill XP +8% Global Accuracy |
20 | -5% Cooking Interval | ||
40 | +8% Cooking Skill XP +8% Cooking Mastery XP |
60 | +5% Lifesteal | |||||
80 | +8% Chance to Double Items in Cooking | 99 | +5% Food Healing Value +5% chance to Preserve Food when eaten | |||||
Syllia | 50 | 45 | 1 | +8% Ranged Skill XP +8% Global Accuracy |
20 | +5 Hidden Ranged Level +5% Ranged Strength Bonus from Equipment | ||
40 | +8% Fletching Skill XP +8% Fletching Mastery XP |
60 | +5% Ammo Preservation | |||||
80 | +8% Chance to Double Items in Fletching | 99 | +5% Chance to gain +1 additional resource in Fletching. Cannot be doubled | |||||
Arachi | 60 | 53 | 1 | +8% Magic Skill XP +8% Global Accuracy |
20 | +5 Hidden Magic Level +5% Magic Damage Bonus from Equipment | ||
40 | +8% Runecrafting Skill XP +8% Runecrafting Mastery XP |
60 | +5% Rune Preservation for Alt. Magic Spells | |||||
80 | +8% Chance to Double Items in Runecrafting | 99 | +5% chance to receive random elemental runes per Runecraft | |||||
Ko | 70 | 61 | 1 | +8% Thieving Skill XP +8% Agility Skill XP |
20 | -5% Thieving Interval -5% Agility Interval | ||
40 | +8% Thieving Mastery XP +8% Agility Mastery XP |
60 | +5% GP From Agility | |||||
80 | +8% Chance to Double Items in Thieving | 99 | +50 Stealth while Thieving | |||||
Tellus | 80 | 69 | 1 | +8% Defence Skill XP +8 Hidden Defence Level |
20 | +5% Slayer Coins | ||
40 | +8% Slayer Skill XP | 60 | +5% Damage To Slayer Area Monsters | |||||
80 | +8% GP From Monsters | 99 | +5% Reflect Damage | |||||
Hyden | 90 | 77 | 1 | +8% Prayer Skill XP | 20 | -5% Crafting Interval | ||
40 | +8% Crafting Skill XP +8% Crafting Mastery XP |
60 | +5% Chance to gain +1 additional resource in Crafting. Cannot be doubled | |||||
80 | +8% Chance to Double Items in Crafting | 99 | +5% Chance To Preserve Prayer Points | |||||
Qimican | 95 | 85 | 1 | +8% Herblore Skill XP +8% Summoning Skill XP |
20 | -5% Herblore Interval -5% Summoning Interval | ||
40 | +8% Herblore Mastery XP +8% Summoning Mastery XP |
60 | +5% Chance To Preserve Potion Charge | |||||
80 | +8% Chance to Double Items in Herblore +8% Chance to Double Items in Summoning |
99 | +5% Chance to preserve Summoning Charges | |||||
100 | 155 | 1 | +8% Astrology Skill XP | 20 | -5% Astrology Interval | |||
40 | +8% Astrology Mastery XP | 60 | +2.5% chance to locate Golden Stardust in Astrology | |||||
80 | +2% chance to locate Stardust in Astrology | 99 | +0.5% chance to locate a Meteorite in Astrology | |||||
105 | 235 | 1 | +8% Township Skill XP | 20 | +5% Township Happiness | |||
40 | +8% Township Resource Generation | 60 | -5% Township Building Cost | |||||
80 | +8% Township Max Storage | 99 | +5% Township Education | |||||
110 | 335 | 1 | +8% chance to receive a Quality Superior Gem while Mining Gem Veins or Meteorite Ore | 20 | +5% GP from all sources (Except Item Selling) | |||
40 | +8% Chance to Double Items Globally | 60 | +50 Bank Space | |||||
80 | +4% chance to locate Stardust in Astrology | 99 | +5% Global Mastery XP | |||||
115 | 475 | 1 | +8% Auto Eat Efficiency | 20 | -5% Attack Interval | |||
40 | +8% Damage To Slayer Tasks | 60 | +5% Flat Slayer Area Effect Negation | |||||
80 | +8% Chance To Double Loot in Combat | 99 | Enemy Damage Reduction is decreased by flat -5% |
Potions
The Secret Stardust Potion reduces the interval for Study actions.
Secret Stardust Potion | |||
---|---|---|---|
Potion | Tier | Charges | Effect |
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I | 5 | -3% Astrology Interval |
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II | 10 | -5% Astrology Interval |
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III | 15 | -10% Astrology Interval |
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IV | 25 | -15% Astrology Interval |
The Star Seeker Potion increases the chance of finding Golden Stardust.
Star Seeker Potion | |||
---|---|---|---|
Potion | Tier | Charges | Effect |
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15 | +1% chance to locate Golden Stardust in Astrology | |
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25 | +2% chance to locate Golden Stardust in Astrology | |
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35 | +3% chance to locate Golden Stardust in Astrology | |
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50 | +5% chance to locate Golden Stardust in Astrology |
Summoning Boosts
This table shows all the Summoning Familiars and Synergies that provide a bonus to Astrology.
Familiar 1 | Familiar 2 | Effect | ||
---|---|---|---|---|
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-5% Astrology Interval | |||
Devil | ![]() |
+4 to base drop quantity of Stardust and Golden Stardust from Astrology No longer receive Golden Stardust from Astrology | ||
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-10% Astrology Interval |
Skill Boosts
This table lists most sources of Astrology-specific modifier boosts. For a list of boosts that apply to all skills, see the Skill Boosts page. This list does not contain boosts provided from Mastery rewards.
Source | Type | Astrology Boosts | Other Modifiers |
---|---|---|---|
Agility Obstacle 10 | -5% Astrology Interval +5% Astrology Mastery XP +5% Astrology Skill XP |
||
-10% Astrology Interval +0.5% chance to locate Golden Stardust in Astrology +1.5% chance to locate Stardust in Astrology |
-6% Global Skill XP | ||
-3% Interval for all Non-Combat Skills | +8% Chance to Double Items Globally +40% GP from all sources (Except Item Selling) +8% Global Mastery XP | ||
+4% chance to locate Stardust in Astrology | +50 Bank Space +8% chance to receive a Quality Superior Gem while Mining Gem Veins or Meteorite Ore +8% Chance to Double Items Globally +5% GP from all sources (Except Item Selling) +5% Global Mastery XP | ||
-5% Astrology Interval +2.5% chance to locate Golden Stardust in Astrology +2% chance to locate Stardust in Astrology +0.5% chance to locate a Meteorite in Astrology +8% Astrology Mastery XP +8% Astrology Skill XP |
|||
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Item | -3% Astrology Interval | |
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Item | -5% Astrology Interval | |
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Item | -10% Astrology Interval | |
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Item | -15% Astrology Interval | |
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+1% chance to locate Golden Stardust in Astrology | ||
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+2% chance to locate Golden Stardust in Astrology | ||
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+3% chance to locate Golden Stardust in Astrology | ||
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+5% chance to locate Golden Stardust in Astrology | ||
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Item (Boots) | +2% Non-Combat Skill XP | |
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Item (Boots) | +2% Astrology Skill XP | |
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Item (Cape) | +1 to base drop quantity of Stardust and Golden Stardust from Astrology | |
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Item (Cape) | +1 to base drop quantity of Stardust and Golden Stardust from Astrology +25% Mastery Pool XP Cap |
Bypass Slayer Area item requirements -20% Agility Obstacle Build Costs -50% Prayer Point Cost for Prayers -0.5s Thieving Interval -0.5s Crafting Interval -15% Woodcutting Interval -15% Cooking Interval -50% Coal Costs for Smithing -15% Township Building Cost x2 Items received from Fishing x2 Items received from Fletching x2 Items received from Herblore +5 Additional Runes of the same type in Runecrafting +50% Ammo Preservation +1 Coal Ore per Ore Mined. (Item doubling does not apply) +100% chance to receive Ash per burn in Firemaking +2% Global Perfect Cook chance. +100% chance to successfully Cook an item. +15% Chance to Double Items in Runecrafting +5% Damage To Slayer Tasks +25% Farming Yield +100% chance to receive coal when burning logs in Firemaking +10% GP From Agility +100% GP From Thieving +5% Global Skill XP +10 Flat HP Regen Rune providing items provide 2x as many runes +20% Chance to Preserve Resources in Summoning +25% Flat Slayer Area Effect Negation +10% Chance to preserve Summoning Charges +10 Base Quantity for Summoning Tablet Creation +150 Stealth while Thieving |
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Item (Cape) | +1 to base drop quantity of Stardust and Golden Stardust from Astrology | Bypass Slayer Area item requirements -20% Agility Obstacle Build Costs -50% Prayer Point Cost for Prayers -0.5s Thieving Interval -0.5s Crafting Interval -15% Woodcutting Interval -15% Cooking Interval -50% Coal Costs for Smithing -15% Township Building Cost x2 Items received from Fishing x2 Items received from Fletching x2 Items received from Herblore +5 Additional Runes of the same type in Runecrafting +50% Ammo Preservation +1 Coal Ore per Ore Mined. (Item doubling does not apply) +100% chance to receive Ash per burn in Firemaking +2% Global Perfect Cook chance. +100% chance to successfully Cook an item. +15% Chance to Double Items in Runecrafting +5% Damage To Slayer Tasks +25% Farming Yield +100% chance to receive coal when burning logs in Firemaking +10% GP From Agility +100% GP From Thieving +5% Global Skill XP +10 Flat HP Regen Rune providing items provide 2x as many runes +20% Chance to Preserve Resources in Summoning +25% Flat Slayer Area Effect Negation +10% Chance to preserve Summoning Charges +10 Base Quantity for Summoning Tablet Creation +150 Stealth while Thieving |
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-10% Astrology Interval +2 to base drop quantity of Stardust and Golden Stardust from Astrology |
||
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-10% Astrology Interval +2 to base drop quantity of Stardust and Golden Stardust from Astrology |
Bypass All Slayer Area item requirements -30% Agility Obstacle Build Costs -20% Agility Pillar build costs -75% Prayer Point Cost for Prayers -0.8s Thieving Interval -0.8s Crafting Interval -20% Woodcutting Interval -25% Cooking Interval -10% Summoning Interval -75% Coal Costs for Smithing -20% Township Building Cost x2 Items received from Fishing x2 Items received from Fletching x2 Items received from Herblore +8 Additional Runes of the same type in Runecrafting +75% Ammo Preservation +1 Bolts produced per action in Fletching +2 Coal Ore per Ore Mined. (Item doubling does not apply) +50% Chance to gain +1 additional bar in Smithing (Cannot be doubled) +100% Chance to gain +1 additional resource in Fishing. Cannot be doubled +100% Chance to gain +1 additional resource in Fletching. Cannot be doubled +15% Chance to gain +1 additional resource in Crafting. Cannot be doubled +100% Chance to gain +1 additional resource in Herblore. Cannot be doubled +20% chance for double harvest +100% chance to receive Ash per burn in Firemaking +100% chance to receive Charcoal per burn in Firemaking +4% Global Perfect Cook chance. +100% chance to successfully Cook an item. +20% chance to avoid the stun interval and stun damage in Thieving when pickpocket attempt fails +25% Chance to Double Items in Runecrafting +1% chance to find a Lost Chest while Fishing (This is separate to the Special Fishing Chance) +5% chance to Preserve Food when eaten +5% Chance To Preserve Potion Charge +5% Chance To Preserve Prayer Points +8% Damage To Slayer Tasks +40% Farming Yield +100% chance to receive coal when burning logs in Firemaking +20% GP From Agility +150% GP From Thieving +5% Chance to find gem veins when Mining +8% Global Skill XP +15 Flat HP Regen +5% Lifesteal +5% Magic Damage Bonus from Equipment +5% Melee Strength Bonus from Equipment +1 minimum Bird Nest's recieved from Woodcutting +5% of Maximum Hit added to Minimum Hit +5% Ranged Strength Bonus from Equipment +5% Reflect Damage +10% Rune Preservation Rune providing items provide 4x as many runes +25% Chance to Preserve Resources in Summoning +35% Flat Slayer Area Effect Negation +10% Slayer Coins +15% Chance to preserve Summoning Charges +10 Base Quantity for Summoning Tablet Creation +10% Summoning Max Hit +270 Stealth while Thieving | |
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-10% Astrology Interval +2 to base drop quantity of Stardust and Golden Stardust from Astrology |
Bypass All Slayer Area item requirements -30% Agility Obstacle Build Costs -20% Agility Pillar build costs -75% Prayer Point Cost for Prayers -0.8s Thieving Interval -0.8s Crafting Interval -20% Woodcutting Interval -25% Cooking Interval -10% Summoning Interval -75% Coal Costs for Smithing -20% Township Building Cost x2 Items received from Fishing x2 Items received from Fletching x2 Items received from Herblore +8 Additional Runes of the same type in Runecrafting +75% Ammo Preservation +1 Bolts produced per action in Fletching +2 Coal Ore per Ore Mined. (Item doubling does not apply) +50% Chance to gain +1 additional bar in Smithing (Cannot be doubled) +100% Chance to gain +1 additional resource in Fishing. Cannot be doubled +100% Chance to gain +1 additional resource in Fletching. Cannot be doubled +15% Chance to gain +1 additional resource in Crafting. Cannot be doubled +100% Chance to gain +1 additional resource in Herblore. Cannot be doubled +20% chance for double harvest +100% chance to receive Ash per burn in Firemaking +100% chance to receive Charcoal per burn in Firemaking +4% Global Perfect Cook chance. +100% chance to successfully Cook an item. +20% chance to avoid the stun interval and stun damage in Thieving when pickpocket attempt fails +25% Chance to Double Items in Runecrafting +1% chance to find a Lost Chest while Fishing (This is separate to the Special Fishing Chance) +5% chance to Preserve Food when eaten +5% Chance To Preserve Potion Charge +5% Chance To Preserve Prayer Points +8% Damage To Slayer Tasks +40% Farming Yield +100% chance to receive coal when burning logs in Firemaking +20% GP From Agility +150% GP From Thieving +5% Chance to find gem veins when Mining +8% Global Skill XP +15 Flat HP Regen +5% Lifesteal +5% Magic Damage Bonus from Equipment +5% Melee Strength Bonus from Equipment +1 minimum Bird Nest's recieved from Woodcutting +5% of Maximum Hit added to Minimum Hit +5% Ranged Strength Bonus from Equipment +5% Reflect Damage +10% Rune Preservation Rune providing items provide 4x as many runes +25% Chance to Preserve Resources in Summoning +35% Flat Slayer Area Effect Negation +10% Slayer Coins +15% Chance to preserve Summoning Charges +10 Base Quantity for Summoning Tablet Creation +10% Summoning Max Hit +270 Stealth while Thieving | |
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Item (Consumable) | +0.2% chance to locate Golden Stardust in Astrology | |
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Item (Consumable) | +0.4% chance to locate Golden Stardust in Astrology | |
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+0.25% chance to locate a Meteorite in Astrology | ||
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Item (Helmet) | +2% Non-Combat Skill XP | |
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Item (Helmet) | +2% Astrology Skill XP | |
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Item (Platebody) | +2% Non-Combat Skill XP | |
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Item (Platebody) | +2% Astrology Skill XP | |
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Item (Platelegs) | +2% Non-Combat Skill XP | |
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Item (Platelegs) | +2% Astrology Skill XP | |
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Item (Ring) | +8% Non-Combat Skill XP | |
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-5% Astrology Interval | ||
Pet | +1% chance to locate Golden Stardust in Astrology | ||
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-2% Interval for all Non-Combat Skills +50% Mastery Pool XP Cap |
-0.1s Attack Interval -0.2s Monster Respawn Timer +3% Ammo Preservation +2% Chance to Double Items Globally +3% Chance To Preserve Potion Charge +5% GP from all sources (Except Item Selling) +5% Global Accuracy +5% Global Evasion +5% Global Mastery XP +2% of Maximum Hit added to Minimum Hit +3% Rune Preservation +5% Slayer Coins +3% Chance to preserve Summoning Charges | |
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-10% Astrology Interval |
Melvor Idle version v1.1.2 (Released: 12th April 2023) | |||||||||||||||||
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Reference Tables: Items, Equipment, Experience Table, Upgrading Items, Combat Areas, Slayer Areas, Dungeons, Chest Loot Tables, Monsters, Monster Loot Tables |