🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 48.4

Radius: 9.1

Gravity: 0.58 G

Time & Orbit

Eccentricity (e): 0.026

Orbit Range: 0.67 AU - 0.71 AU

Year: 382 Days

Day: 7.9 Hours

Environment

Temp: -151 °C

Axial Tilt: 13.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 59,324,842 km

• M1: 113,096 km (0.099 R)
• M2: 632,051 km (0.095 R)
• M3: 1,260,661 km (0.037 R)
• M4: 1,727,556 km (0.113 R)
• M5: 2,116,810 km (0.098 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 697.2

Radius: 10.4

Gravity: 6.45 G

Time & Orbit

Eccentricity (e): 0.218

Orbit Range: 0.56 AU - 0.86 AU

Year: 399 Days

Day: 8.5 Hours

Environment

Temp: -163 °C

Axial Tilt: 19.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 59,324,842 km

• M1: 129,402 km (0.111 R)
• M2: 601,084 km (0.09 R)
• M3: 2,277,777 km (0.063 R)
• M4: 3,389,289 km (0.056 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 733.6

Radius: 8.5

Gravity: 10.15 G

Time & Orbit

Eccentricity (e): 0.109

Orbit Range: 0.98 AU - 1.22 AU

Year: 769 Days

Day: 14.4 Hours

Environment

Temp: -176 °C

Axial Tilt: 46.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 59,324,842 km

• M1: 106,065 km (0.101 R)
• M2: 390,301 km (0.062 R)
• M3: 688,001 km (0.119 R)
• M4: 1,021,604 km (0.058 R)
• M5: 1,295,966 km (0.101 R)
• M6: 2,164,532 km (0.046 R)
• M7: 2,512,795 km (0.118 R)
• M8: 3,242,833 km (0.068 R)
• M9: 4,476,716 km (0.091 R)
• M10: 5,117,594 km (0.115 R)
• M11: 6,667,427 km (0.092 R)
• M12: 7,409,283 km (0.089 R)
• M13: 8,254,811 km (0.099 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 396.2

Radius: 11.7

Gravity: 2.89 G

Time & Orbit

Eccentricity (e): 0.001

Orbit Range: 2.56 AU - 2.56 AU

Year: 2731 Days

Day: 12.9 Hours

Environment

Temp: -209 °C

Axial Tilt: 4.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 59,324,842 km

• M1: 145,559 km (0.076 R)
• M2: 527,332 km (0.053 R)
• M3: 1,188,405 km (0.076 R)
• M4: 1,555,668 km (0.093 R)
• M5: 2,557,226 km (0.057 R)
• M6: 3,873,089 km (0.106 R)
• M7: 4,807,776 km (0.116 R)
• M8: 5,180,873 km (0.111 R)
• M9: 5,644,627 km (0.073 R)
• M10: 6,366,437 km (0.058 R)
• M11: 6,844,851 km (0.117 R)
• M12: 11,542,373 km (0.102 R)
• M13: 11,934,918 km (0.07 R)
• M14: 12,581,480 km (0.036 R)
• M15: 13,856,802 km (0.106 R)
• M16: 14,525,953 km (0.041 R)
• M17: 15,736,649 km (0.092 R)
• M18: 16,219,700 km (0.115 R)
• M19: 16,712,775 km (0.045 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 30.2

Radius: 12.3

Gravity: 0.2 G

Time & Orbit

Eccentricity (e): 0.081

Orbit Range: 2.61 AU - 3.07 AU

Year: 3192 Days

Day: 14.4 Hours

Environment

Temp: -213 °C

Axial Tilt: 48.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 59,324,842 km

• M1: 153,039 km (0.086 R)
• M2: 542,591 km (0.062 R)
• M3: 1,367,325 km (0.097 R)
• M4: 2,722,831 km (0.042 R)
• M5: 3,947,589 km (0.114 R)
• M6: 4,619,433 km (0.076 R)
• M7: 5,768,943 km (0.119 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 329.5

Radius: 13.1

Gravity: 1.92 G

Time & Orbit

Eccentricity (e): 0.188

Orbit Range: 3.75 AU - 5.49 AU

Year: 6622 Days

Day: 5.6 Hours

Environment

Temp: -212 °C

Axial Tilt: 19.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 59,324,842 km

• M1: 163,959 km (0.044 R)
• M2: 627,862 km (0.101 R)
• M3: 1,101,340 km (0.041 R)
• M4: 1,519,914 km (0.1 R)
• M5: 1,992,195 km (0.087 R)
• M6: 2,482,128 km (0.104 R)
• M7: 3,241,935 km (0.109 R)
• M8: 4,198,165 km (0.119 R)
• M9: 5,389,263 km (0.062 R)
• M10: 6,859,062 km (0.077 R)
• M11: 8,965,849 km (0.065 R)
• M12: 10,274,083 km (0.097 R)
• M13: 10,974,201 km (0.095 R)
• M14: 12,227,681 km (0.078 R)
• M15: 14,364,088 km (0.119 R)
• M16: 14,907,428 km (0.077 R)
• M17: 15,520,929 km (0.089 R)
• M18: 20,913,782 km (0.103 R)
• M19: 21,967,550 km (0.041 R)
• M20: 23,352,826 km (0.111 R)
• M21: 27,441,037 km (0.059 R)
• M22: 28,194,112 km (0.09 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.94 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 873.7

Radius: 4

Gravity: 54.61 G

Time & Orbit

Eccentricity (e): 0.217

Orbit Range: 5.43 AU - 8.45 AU

Year: 12192 Days

Day: 22.5 Hours

Environment

Temp: -238 °C

Axial Tilt: 6.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 59,324,842 km

• M1: 88,712 km (0.099 R)
• M2: 274,811 km (0.112 R)
• M3: 449,990 km (0.039 R)
• M4: 655,388 km (0.104 R)
• M5: 789,877 km (0.12 R)
• M6: 1,190,649 km (0.109 R)
• M7: 1,525,449 km (0.036 R)
• M8: 1,937,891 km (0.051 R)
• M9: 3,328,104 km (0.114 R)
• M10: 8,193,475 km (0.107 R)
• M11: 9,280,154 km (0.082 R)
• M12: 10,571,334 km (0.088 R)
• M13: 12,223,642 km (0.1 R)
• M14: 12,917,327 km (0.088 R)
• M15: 13,837,653 km (0.079 R)
• M16: 14,521,166 km (0.097 R)
• M17: 17,168,749 km (0.084 R)
• M18: 17,957,429 km (0.11 R)
• M19: 18,852,623 km (0.06 R)
• M20: 19,692,017 km (0.059 R)
• M21: 23,489,858 km (0.103 R)
• M22: 25,156,528 km (0.116 R)
• M23: 28,504,677 km (0.095 R)
• M24: 37,883,716 km (0.113 R)
• M25: 38,280,599 km (0.095 R)
• M26: 41,836,840 km (0.115 R)
• M27: 51,192,391 km (0.074 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 546 - 10,889 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit