🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 586.3

Radius: 8.6

Gravity: 7.93 G

Time & Orbit

Eccentricity (e): 0.185

Orbit Range: 0.49 AU - 0.71 AU

Year: 321 Days

Day: 11.9 Hours

Environment

Temp: -159 °C

Axial Tilt: 5.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 30,122,685 km

• M1: 106,962 km (0.119 R)
• M2: 409,449 km (0.053 R)
• M3: 688,300 km (0.067 R)
• M4: 960,119 km (0.115 R)
• M5: 1,362,388 km (0.098 R)
• M6: 2,163,784 km (0.094 R)
• M7: 2,545,408 km (0.052 R)
• M8: 3,092,936 km (0.106 R)
• M9: 3,846,460 km (0.115 R)
• M10: 4,266,531 km (0.099 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 889.5

Radius: 12.4

Gravity: 5.78 G

Time & Orbit

Eccentricity (e): 0.065

Orbit Range: 0.78 AU - 0.88 AU

Year: 522 Days

Day: 5.1 Hours

Environment

Temp: -163 °C

Axial Tilt: 23.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 30,122,685 km

• M1: 154,235 km (0.047 R)
• M2: 1,016,069 km (0.119 R)
• M3: 1,541,905 km (0.094 R)
• M4: 2,680,794 km (0.101 R)
• M5: 3,665,746 km (0.095 R)
• M6: 5,453,441 km (0.087 R)
• M7: 5,849,426 km (0.089 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 757.8

Radius: 13.4

Gravity: 4.22 G

Time & Orbit

Eccentricity (e): 0.137

Orbit Range: 0.93 AU - 1.23 AU

Year: 775 Days

Day: 14.5 Hours

Environment

Temp: -172 °C

Axial Tilt: 16.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 30,122,685 km

• M1: 166,802 km (0.071 R)
• M2: 762,800 km (0.11 R)
• M3: 1,245,701 km (0.105 R)
• M4: 1,719,478 km (0.116 R)
• M5: 2,697,250 km (0.096 R)
• M6: 3,238,794 km (0.113 R)
• M7: 3,692,075 km (0.105 R)
• M8: 5,407,664 km (0.106 R)
• M9: 6,337,564 km (0.112 R)
• M10: 7,747,973 km (0.062 R)
• M11: 8,514,662 km (0.107 R)
• M12: 8,956,275 km (0.103 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 827.7

Radius: 14.1

Gravity: 4.16 G

Time & Orbit

Eccentricity (e): 0.023

Orbit Range: 1.14 AU - 1.2 AU

Year: 874 Days

Day: 10.3 Hours

Environment

Temp: -185 °C

Axial Tilt: 1.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 30,122,685 km

• M1: 175,478 km (0.078 R)
• M2: 659,577 km (0.111 R)
• M3: 1,612,665 km (0.073 R)
• M4: 2,234,693 km (0.1 R)
• M5: 2,776,387 km (0.058 R)
• M6: 4,325,174 km (0.06 R)
• M7: 6,008,000 km (0.09 R)
• M8: 7,890,689 km (0.086 R)
• M9: 8,723,201 km (0.079 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.43 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 278.2

Radius: 8.1

Gravity: 4.24 G

Time & Orbit

Eccentricity (e): 0.218

Orbit Range: 1.12 AU - 1.74 AU

Year: 1180 Days

Day: 7.8 Hours

Environment

Temp: -180 °C

Axial Tilt: 157.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 30,122,685 km

• M1: 107,262 km (0.1 R)
• M2: 404,064 km (0.089 R)
• M3: 800,349 km (0.091 R)
• M4: 1,350,270 km (0.118 R)
• M5: 2,516,386 km (0.075 R)
• M6: 2,995,847 km (0.093 R)
• M7: 3,534,998 km (0.096 R)
• M8: 4,720,710 km (0.06 R)
• M9: 6,011,142 km (0.099 R)
• M10: 6,503,468 km (0.032 R)
• M11: 7,000,133 km (0.083 R)
• M12: 8,266,030 km (0.073 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 662.2

Radius: 12.6

Gravity: 4.17 G

Time & Orbit

Eccentricity (e): 0.219

Orbit Range: 1.55 AU - 2.43 AU

Year: 1938 Days

Day: 5.1 Hours

Environment

Temp: -195 °C

Axial Tilt: 11.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 30,122,685 km

• M1: 156,928 km (0.082 R)
• M2: 1,018,911 km (0.066 R)
• M3: 1,588,580 km (0.095 R)
• M4: 2,062,655 km (0.089 R)
• M5: 3,112,982 km (0.107 R)
• M6: 4,180,213 km (0.11 R)
• M7: 5,639,541 km (0.076 R)
• M8: 6,169,715 km (0.098 R)
• M9: 7,414,818 km (0.092 R)
• M10: 8,852,604 km (0.078 R)
• M11: 10,504,314 km (0.062 R)
• M12: 10,975,248 km (0.083 R)
• M13: 13,544,442 km (0.094 R)
• M14: 15,265,715 km (0.113 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 84

Radius: 12.2

Gravity: 0.56 G

Time & Orbit

Eccentricity (e): 0.092

Orbit Range: 2.32 AU - 2.78 AU

Year: 2811 Days

Day: 11.1 Hours

Environment

Temp: -208 °C

Axial Tilt: 91.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 30,122,685 km

• M1: 151,842 km (0.107 R)
• M2: 1,258,118 km (0.084 R)
• M3: 2,167,075 km (0.119 R)
• M4: 2,778,182 km (0.098 R)
• M5: 3,516,448 km (0.067 R)
• M6: 4,892,150 km (0.099 R)
• M7: 5,325,086 km (0.097 R)
• M8: 7,490,216 km (0.117 R)

Planet 8 - Gas Giant

Semi-Major Axis: 2.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 13

Radius: 10.3

Gravity: 0.12 G

Time & Orbit

Eccentricity (e): 0.072

Orbit Range: 2.51 AU - 2.91 AU

Year: 3079 Days

Day: 5.7 Hours

Environment

Temp: -203 °C

Axial Tilt: 32.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 30,122,685 km

• M1: 128,056 km (0.104 R)
• M2: 474,225 km (0.108 R)
• M3: 1,500,317 km (0.108 R)
• M4: 2,373,819 km (0.117 R)
• M5: 2,918,206 km (0.094 R)
• M6: 4,134,436 km (0.107 R)

Planet 9 - Ice Giant

Semi-Major Axis: 6.38 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 137.4

Radius: 7.2

Gravity: 2.65 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 5.61 AU - 7.15 AU

Year: 11124 Days

Day: 24.1 Hours

Environment

Temp: -222 °C

Axial Tilt: 27.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 30,122,685 km

• M1: 99,782 km (0.096 R)
• M2: 340,784 km (0.084 R)
• M3: 714,180 km (0.119 R)
• M4: 1,019,360 km (0.025 R)
• M5: 1,574,069 km (0.115 R)
• M6: 1,982,920 km (0.032 R)
• M7: 3,515,849 km (0.078 R)
• M8: 5,168,457 km (0.098 R)
• M9: 5,739,771 km (0.103 R)
• M10: 8,375,536 km (0.12 R)
• M11: 9,449,798 km (0.063 R)
• M12: 10,975,547 km (0.049 R)
• M13: 11,487,172 km (0.047 R)
• M14: 12,358,579 km (0.092 R)
• M15: 12,608,408 km (0.108 R)
• M16: 14,506,954 km (0.098 R)
• M17: 16,953,627 km (0.119 R)
• M18: 18,017,717 km (0.117 R)
• M19: 18,993,095 km (0.102 R)
• M20: 19,594,927 km (0.12 R)
• M21: 20,003,180 km (0.069 R)
• M22: 21,765,443 km (0.106 R)
• M23: 22,276,918 km (0.088 R)
• M24: 27,246,410 km (0.119 R)
• M25: 27,840,463 km (0.085 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 291 - 13,073 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit