🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.62 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.13

Radius: 1.76

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.181

Orbit Range: 0.51 AU - 0.73 AU

Year: 186 Days

Day: 25.3 Hours

Environment

Temp: 125 °C

Axial Tilt: 21.2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 23,816,140 km

• M1: 43,832 km (0.053 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.82 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.14

Radius: 0.46

Gravity: 0.66 G

Time & Orbit

Eccentricity (e): 0.242

Orbit Range: 0.62 AU - 1.02 AU

Year: 283 Days

Day: 23.3 Hours

Environment

Temp: 124 °C

Axial Tilt: 32.7 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 0.86 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.3

Radius: 0.62

Gravity: 0.78 G

Time & Orbit

Eccentricity (e): 0.038

Orbit Range: 0.83 AU - 0.89 AU

Year: 304 Days

Day: 17 Hours

Environment

Temp: 31 °C

Axial Tilt: 12.2 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 4 - Terrestrial

Semi-Major Axis: 0.98 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.88

Radius: 1.29

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.075

Orbit Range: 0.91 AU - 1.05 AU

Year: 369 Days

Day: 32.5 Hours

Environment

Temp: 10 °C

Axial Tilt: 2.3 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (2)

Outer Limit: 23,816,140 km

• M1: 41,887 km (0.073 R)
• M2: 260,749 km (0.118 R)

Planet 5 - Terrestrial

Semi-Major Axis: 1.2 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.48

Radius: 1.17

Gravity: 1.08 G

Time & Orbit

Eccentricity (e): 0.206

Orbit Range: 0.95 AU - 1.45 AU

Year: 501 Days

Day: 38.5 Hours

Environment

Temp: -20 °C

Axial Tilt: 5.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 23,816,140 km

• M1: 28,124 km (0.097 R)

Planet 6 - Terrestrial

Semi-Major Axis: 2.42 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.88

Radius: 1.72

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.082

Orbit Range: 2.22 AU - 2.62 AU

Year: 1434 Days

Day: 28.3 Hours

Environment

Temp: -105 °C

Axial Tilt: 11.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Gas Giant

Semi-Major Axis: 6.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 896.3

Radius: 8

Gravity: 14 G

Time & Orbit

Eccentricity (e): 0.172

Orbit Range: 5.28 AU - 7.48 AU

Year: 6137 Days

Day: 9.5 Hours

Environment

Temp: -167 °C

Axial Tilt: 41.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 23,816,140 km

• M1: 100,081 km (0.115 R)
• M2: 459,265 km (0.091 R)
• M3: 851,062 km (0.108 R)
• M4: 2,155,107 km (0.101 R)
• M5: 2,759,482 km (0.102 R)
• M6: 3,494,606 km (0.117 R)
• M7: 3,822,974 km (0.073 R)
• M8: 4,735,072 km (0.069 R)
• M9: 4,991,483 km (0.106 R)
• M10: 5,849,277 km (0.112 R)
• M11: 6,279,520 km (0.082 R)
• M12: 7,581,770 km (0.098 R)
• M13: 8,214,868 km (0.068 R)
• M14: 10,231,746 km (0.09 R)
• M15: 10,613,520 km (0.106 R)
• M16: 11,815,988 km (0.084 R)
• M17: 13,959,725 km (0.114 R)
• M18: 17,949,650 km (0.083 R)
• M19: 20,995,313 km (0.109 R)
• M20: 24,623,062 km (0.076 R)
• M21: 26,007,590 km (0.075 R)
• M22: 26,540,009 km (0.08 R)
• M23: 26,989,101 km (0.079 R)
• M24: 27,626,388 km (0.104 R)
• M25: 33,194,720 km (0.084 R)
• M26: 33,926,254 km (0.093 R)
• M27: 36,405,689 km (0.078 R)
• M28: 37,183,748 km (0.066 R)

Planet 8 - Gas Giant

Semi-Major Axis: 6.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 211.6

Radius: 8.1

Gravity: 3.23 G

Time & Orbit

Eccentricity (e): 0.198

Orbit Range: 5.12 AU - 7.64 AU

Year: 6137 Days

Day: 8.5 Hours

Environment

Temp: -160 °C

Axial Tilt: 20.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 23,816,140 km

• M1: 101,727 km (0.067 R)
• M2: 451,786 km (0.055 R)
• M3: 711,039 km (0.088 R)
• M4: 1,151,904 km (0.066 R)
• M5: 1,409,661 km (0.109 R)
• M6: 1,953,150 km (0.09 R)
• M7: 2,473,601 km (0.097 R)
• M8: 3,083,511 km (0.11 R)
• M9: 3,688,485 km (0.094 R)
• M10: 4,693,633 km (0.111 R)
• M11: 5,734,236 km (0.111 R)
• M12: 6,617,761 km (0.118 R)
• M13: 8,581,083 km (0.063 R)
• M14: 9,313,814 km (0.105 R)
• M15: 11,984,734 km (0.092 R)
• M16: 12,254,459 km (0.066 R)
• M17: 12,806,027 km (0.06 R)
• M18: 16,304,672 km (0.04 R)
• M19: 16,747,631 km (0.08 R)
• M20: 18,301,804 km (0.063 R)
• M21: 19,637,563 km (0.116 R)
• M22: 20,075,885 km (0.12 R)
• M23: 22,913,008 km (0.105 R)

Planet 9 - Gas Giant

Semi-Major Axis: 10.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 47.7

Radius: 14.2

Gravity: 0.24 G

Time & Orbit

Eccentricity (e): 0.165

Orbit Range: 8.91 AU - 12.43 AU

Year: 13272 Days

Day: 14.1 Hours

Environment

Temp: -177 °C

Axial Tilt: 21.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 23,816,140 km

• M1: 176,825 km (0.081 R)
• M2: 795,861 km (0.066 R)
• M3: 2,217,938 km (0.107 R)
• M4: 4,024,482 km (0.066 R)
• M5: 5,359,643 km (0.094 R)
• M6: 7,642,506 km (0.11 R)
• M7: 14,237,977 km (0.104 R)
• M8: 16,841,728 km (0.049 R)
• M9: 21,751,830 km (0.097 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 207 - 17,732 AU

Composition

Type: Cometary Reservoir

System's final boundary, containing trillions of icy planetesimals.

Gravitational Limit