🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.38 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 954

Radius: 13.2

Gravity: 5.48 G

Time & Orbit

Eccentricity (e): 0.016

Orbit Range: 0.75 AU - 0.77 AU

Year: 442 Days

Day: 14 Hours

Environment

Temp: -158 °C

Axial Tilt: 27.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 35,642,971 km

• M1: 166,054 km (0.072 R)
• M2: 679,324 km (0.081 R)
• M3: 1,511,238 km (0.08 R)
• M4: 2,065,947 km (0.055 R)
• M5: 2,589,689 km (0.078 R)
• M6: 3,155,019 km (0.099 R)
• M7: 3,593,790 km (0.115 R)
• M8: 4,811,217 km (0.053 R)
• M9: 5,636,399 km (0.04 R)
• M10: 6,438,692 km (0.027 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 765.4

Radius: 10.7

Gravity: 6.69 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 1.08 AU - 1.48 AU

Year: 966 Days

Day: 5.8 Hours

Environment

Temp: -190 °C

Axial Tilt: 43.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 35,642,971 km

• M1: 133,142 km (0.101 R)
• M2: 660,923 km (0.113 R)
• M3: 1,050,027 km (0.111 R)
• M4: 1,620,295 km (0.066 R)
• M5: 1,958,087 km (0.115 R)
• M6: 2,537,479 km (0.065 R)
• M7: 2,945,582 km (0.105 R)
• M8: 3,648,243 km (0.119 R)
• M9: 4,563,932 km (0.045 R)
• M10: 6,259,624 km (0.1 R)
• M11: 6,776,784 km (0.051 R)
• M12: 8,260,944 km (0.071 R)
• M13: 8,911,695 km (0.107 R)
• M14: 9,249,636 km (0.094 R)
• M15: 9,772,631 km (0.105 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 332.7

Radius: 8.4

Gravity: 4.72 G

Time & Orbit

Eccentricity (e): 0.139

Orbit Range: 1.92 AU - 2.54 AU

Year: 2221 Days

Day: 8 Hours

Environment

Temp: -207 °C

Axial Tilt: 34.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 35,642,971 km

• M1: 151,692 km (0.098 R)
• M2: 816,056 km (0.066 R)
• M3: 1,091,616 km (0.095 R)
• M4: 2,145,981 km (0.112 R)
• M5: 3,682,352 km (0.088 R)
• M6: 4,668,202 km (0.096 R)
• M7: 7,973,417 km (0.099 R)
• M8: 8,555,353 km (0.039 R)
• M9: 10,471,851 km (0.078 R)
• M10: 12,580,882 km (0.108 R)

Planet 4 - Gas Giant

Semi-Major Axis: 4.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 70.3

Radius: 8.9

Gravity: 0.89 G

Time & Orbit

Eccentricity (e): 0.228

Orbit Range: 3.11 AU - 4.95 AU

Year: 5395 Days

Day: 8.8 Hours

Environment

Temp: -225 °C

Axial Tilt: 29.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 35,642,971 km

• M1: 110,852 km (0.096 R)
• M2: 411,095 km (0.115 R)
• M3: 1,113,307 km (0.111 R)
• M4: 2,271,195 km (0.071 R)
• M5: 2,990,910 km (0.106 R)
• M6: 3,577,932 km (0.107 R)
• M7: 3,890,442 km (0.067 R)
• M8: 5,620,392 km (0.055 R)
• M9: 8,520,796 km (0.097 R)
• M10: 14,390,567 km (0.104 R)
• M11: 14,828,141 km (0.037 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 607.6

Radius: 13.4

Gravity: 3.38 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 4.36 AU - 4.68 AU

Year: 6408 Days

Day: 11.6 Hours

Environment

Temp: -232 °C

Axial Tilt: 25.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 35,642,971 km

• M1: 166,652 km (0.08 R)
• M2: 637,586 km (0.099 R)
• M3: 1,796,072 km (0.07 R)
• M4: 2,234,394 km (0.082 R)
• M5: 7,598,674 km (0.071 R)
• M6: 8,285,478 km (0.033 R)
• M7: 9,565,138 km (0.087 R)
• M8: 14,309,336 km (0.073 R)
• M9: 24,100,965 km (0.104 R)
• M10: 26,693,047 km (0.027 R)
• M11: 31,837,868 km (0.028 R)
• M12: 32,327,053 km (0.117 R)

Planet 6 - Ice Giant

Semi-Major Axis: 5.93 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 277.8

Radius: 7.3

Gravity: 5.21 G

Time & Orbit

Eccentricity (e): 0.192

Orbit Range: 4.79 AU - 7.07 AU

Year: 9630 Days

Day: 23.8 Hours

Environment

Temp: -219 °C

Axial Tilt: 43.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 35,642,971 km

• M1: 109,805 km (0.049 R)
• M2: 428,897 km (0.064 R)
• M3: 898,036 km (0.116 R)
• M4: 1,495,530 km (0.07 R)
• M5: 1,838,707 km (0.103 R)
• M6: 2,970,565 km (0.109 R)
• M7: 5,027,236 km (0.112 R)
• M8: 7,846,558 km (0.066 R)
• M9: 10,422,932 km (0.082 R)
• M10: 13,078,295 km (0.059 R)
• M11: 13,349,964 km (0.091 R)
• M12: 16,153,578 km (0.096 R)
• M13: 18,909,021 km (0.118 R)
• M14: 20,984,991 km (0.063 R)
• M15: 22,814,124 km (0.084 R)
• M16: 24,747,078 km (0.108 R)
• M17: 30,907,967 km (0.108 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.03 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 182.3

Radius: 6.4

Gravity: 4.45 G

Time & Orbit

Eccentricity (e): 0.189

Orbit Range: 5.7 AU - 8.36 AU

Year: 12430 Days

Day: 23.9 Hours

Environment

Temp: -237 °C

Axial Tilt: 23.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 35,642,971 km

• M1: 79,736 km (0.116 R)
• M2: 327,320 km (0.117 R)
• M3: 1,139,038 km (0.085 R)
• M4: 2,254,739 km (0.077 R)
• M5: 3,724,987 km (0.115 R)
• M6: 4,289,270 km (0.038 R)
• M7: 4,880,780 km (0.03 R)
• M8: 6,770,201 km (0.092 R)
• M9: 7,163,045 km (0.103 R)
• M10: 9,936,590 km (0.08 R)
• M11: 11,114,523 km (0.088 R)
• M12: 11,560,475 km (0.093 R)
• M13: 12,435,323 km (0.074 R)
• M14: 14,963,228 km (0.115 R)
• M15: 15,324,207 km (0.112 R)
• M16: 20,194,516 km (0.083 R)
• M17: 22,229,795 km (0.116 R)
• M18: 23,016,979 km (0.09 R)
• M19: 23,579,018 km (0.069 R)
• M20: 27,772,396 km (0.104 R)
• M21: 28,870,145 km (0.074 R)
• M22: 29,149,145 km (0.078 R)
• M23: 29,429,791 km (0.082 R)
• M24: 30,860,545 km (0.056 R)
• M25: 33,347,011 km (0.064 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: 458 - 13,581 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit