🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 75.8

Radius: 13

Gravity: 0.45 G

Time & Orbit

Eccentricity (e): 0.052

Orbit Range: 0.6 AU - 0.66 AU

Year: 333 Days

Day: 11.7 Hours

Environment

Temp: -142 °C

Axial Tilt: 7.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 81,633,219 km

• M1: 167,550 km (0.071 R)
• M2: 627,413 km (0.089 R)
• M3: 1,145,022 km (0.107 R)
• M4: 1,665,922 km (0.057 R)
• M5: 2,140,297 km (0.115 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 868

Radius: 8.7

Gravity: 11.47 G

Time & Orbit

Eccentricity (e): 0.23

Orbit Range: 0.59 AU - 0.93 AU

Year: 442 Days

Day: 12.4 Hours

Environment

Temp: -153 °C

Axial Tilt: 29.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 81,633,219 km

• M1: 108,159 km (0.091 R)
• M2: 438,920 km (0.102 R)
• M3: 895,493 km (0.052 R)
• M4: 1,239,718 km (0.09 R)
• M5: 1,519,765 km (0.095 R)
• M6: 2,487,364 km (0.099 R)
• M7: 2,895,317 km (0.12 R)
• M8: 3,311,050 km (0.035 R)
• M9: 3,687,438 km (0.103 R)
• M10: 4,496,762 km (0.068 R)
• M11: 4,975,326 km (0.09 R)
• M12: 5,318,503 km (0.084 R)
• M13: 5,730,197 km (0.118 R)
• M14: 6,107,632 km (0.063 R)
• M15: 6,444,377 km (0.112 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 589.5

Radius: 14.2

Gravity: 2.92 G

Time & Orbit

Eccentricity (e): 0.109

Orbit Range: 0.89 AU - 1.11 AU

Year: 667 Days

Day: 6.6 Hours

Environment

Temp: -170 °C

Axial Tilt: 13.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 81,633,219 km

• M1: 176,675 km (0.034 R)
• M2: 1,097,151 km (0.052 R)
• M3: 1,862,942 km (0.111 R)
• M4: 2,560,667 km (0.082 R)
• M5: 3,415,768 km (0.094 R)
• M6: 5,014,072 km (0.072 R)
• M7: 6,613,273 km (0.119 R)
• M8: 7,130,433 km (0.045 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 910

Radius: 13.1

Gravity: 5.3 G

Time & Orbit

Eccentricity (e): 0.146

Orbit Range: 0.92 AU - 1.24 AU

Year: 748 Days

Day: 9.8 Hours

Environment

Temp: -179 °C

Axial Tilt: 5.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 81,633,219 km

• M1: 162,912 km (0.039 R)
• M2: 591,959 km (0.08 R)
• M3: 1,099,395 km (0.104 R)
• M4: 1,516,474 km (0.111 R)
• M5: 2,099,905 km (0.097 R)
• M6: 2,664,936 km (0.114 R)
• M7: 3,384,951 km (0.106 R)
• M8: 3,995,759 km (0.12 R)
• M9: 4,560,192 km (0.098 R)
• M10: 5,270,034 km (0.064 R)
• M11: 6,843,953 km (0.096 R)
• M12: 7,393,426 km (0.039 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 998.3

Radius: 13.5

Gravity: 5.48 G

Time & Orbit

Eccentricity (e): 0.091

Orbit Range: 1.11 AU - 1.33 AU

Year: 899 Days

Day: 9.1 Hours

Environment

Temp: -183 °C

Axial Tilt: 39 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 81,633,219 km

• M1: 169,943 km (0.088 R)
• M2: 668,702 km (0.114 R)
• M3: 1,712,447 km (0.055 R)
• M4: 2,251,598 km (0.109 R)
• M5: 3,396,470 km (0.1 R)
• M6: 3,945,494 km (0.1 R)
• M7: 5,321,196 km (0.116 R)
• M8: 5,979,128 km (0.068 R)
• M9: 6,737,140 km (0.106 R)
• M10: 7,558,432 km (0.108 R)
• M11: 9,313,664 km (0.115 R)
• M12: 10,395,706 km (0.05 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 707

Radius: 14.5

Gravity: 3.36 G

Time & Orbit

Eccentricity (e): 0.158

Orbit Range: 1.16 AU - 1.6 AU

Year: 1081 Days

Day: 9.6 Hours

Environment

Temp: -188 °C

Axial Tilt: 37.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 81,633,219 km

• M1: 180,415 km (0.035 R)
• M2: 706,102 km (0.073 R)
• M3: 1,413,849 km (0.115 R)
• M4: 2,871,082 km (0.033 R)
• M5: 3,580,176 km (0.042 R)
• M6: 5,331,219 km (0.067 R)
• M7: 5,884,133 km (0.085 R)
• M8: 7,154,069 km (0.044 R)
• M9: 10,232,794 km (0.051 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 721.3

Radius: 8.9

Gravity: 9.11 G

Time & Orbit

Eccentricity (e): 0.142

Orbit Range: 2.5 AU - 3.32 AU

Year: 3310 Days

Day: 11.7 Hours

Environment

Temp: -213 °C

Axial Tilt: 34.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 81,633,219 km

• M1: 110,702 km (0.071 R)
• M2: 439,818 km (0.115 R)
• M3: 737,817 km (0.104 R)
• M4: 1,176,288 km (0.108 R)
• M5: 1,782,758 km (0.116 R)
• M6: 2,552,888 km (0.098 R)
• M7: 2,961,888 km (0.048 R)
• M8: 6,371,822 km (0.092 R)
• M9: 6,757,485 km (0.117 R)
• M10: 7,285,267 km (0.105 R)
• M11: 8,529,023 km (0.077 R)
• M12: 9,145,666 km (0.067 R)
• M13: 9,908,765 km (0.116 R)
• M14: 11,692,420 km (0.047 R)
• M15: 12,637,131 km (0.076 R)
• M16: 13,247,041 km (0.06 R)
• M17: 13,631,956 km (0.103 R)
• M18: 14,273,282 km (0.111 R)
• M19: 15,351,733 km (0.107 R)
• M20: 16,209,228 km (0.062 R)
• M21: 19,772,799 km (0.111 R)
• M22: 21,903,073 km (0.081 R)

Planet 8 - Gas Giant

Semi-Major Axis: 3.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 966.2

Radius: 9.2

Gravity: 11.42 G

Time & Orbit

Eccentricity (e): 0.09

Orbit Range: 3.32 AU - 3.98 AU

Year: 4650 Days

Day: 6.6 Hours

Environment

Temp: -225 °C

Axial Tilt: 35.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 81,633,219 km

• M1: 115,041 km (0.087 R)
• M2: 521,049 km (0.118 R)
• M3: 914,941 km (0.103 R)
• M4: 1,564,943 km (0.076 R)
• M5: 1,934,899 km (0.074 R)
• M6: 3,473,812 km (0.056 R)
• M7: 4,181,709 km (0.073 R)
• M8: 5,233,532 km (0.062 R)
• M9: 6,518,129 km (0.103 R)
• M10: 7,024,368 km (0.069 R)
• M11: 8,424,604 km (0.096 R)
• M12: 8,741,752 km (0.084 R)
• M13: 9,399,833 km (0.111 R)
• M14: 9,784,299 km (0.066 R)
• M15: 12,114,735 km (0.058 R)
• M16: 13,195,729 km (0.105 R)
• M17: 13,569,873 km (0.089 R)
• M18: 14,339,704 km (0.12 R)
• M19: 15,080,213 km (0.112 R)
• M20: 15,371,780 km (0.049 R)
• M21: 17,200,763 km (0.092 R)
• M22: 18,832,278 km (0.12 R)
• M23: 21,140,274 km (0.105 R)
• M24: 21,432,289 km (0.092 R)
• M25: 24,663,453 km (0.117 R)
• M26: 25,808,924 km (0.088 R)
• M27: 31,310,535 km (0.108 R)
• M28: 32,169,077 km (0.118 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.03 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 754.1

Radius: 7.7

Gravity: 12.72 G

Time & Orbit

Eccentricity (e): 0.201

Orbit Range: 8.01 AU - 12.05 AU

Year: 21183 Days

Day: 15.9 Hours

Environment

Temp: -237 °C

Axial Tilt: 15 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 81,633,219 km

• M1: 95,743 km (0.077 R)
• M2: 429,795 km (0.058 R)
• M3: 747,989 km (0.115 R)
• M4: 1,113,906 km (0.093 R)
• M5: 1,963,472 km (0.044 R)
• M6: 2,297,225 km (0.088 R)
• M7: 4,225,841 km (0.117 R)
• M8: 4,969,791 km (0.094 R)
• M9: 5,314,165 km (0.094 R)
• M10: 6,008,150 km (0.117 R)
• M11: 6,399,348 km (0.104 R)
• M12: 11,760,188 km (0.106 R)
• M13: 12,303,677 km (0.046 R)
• M14: 17,184,756 km (0.089 R)
• M15: 21,570,667 km (0.03 R)
• M16: 22,077,055 km (0.058 R)
• M17: 27,350,081 km (0.079 R)
• M18: 28,063,065 km (0.115 R)
• M19: 31,815,278 km (0.079 R)
• M20: 33,405,354 km (0.068 R)
• M21: 37,465,590 km (0.094 R)
• M22: 46,886,516 km (0.119 R)
• M23: 48,596,120 km (0.102 R)
• M24: 51,597,203 km (0.049 R)
• M25: 64,838,410 km (0.113 R)
• M26: 69,563,309 km (0.072 R)
• M27: 73,367,882 km (0.079 R)
• M28: 78,971,968 km (0.113 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: 250 - 11,436 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit