🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 976.1

Radius: 13.4

Gravity: 5.44 G

Time & Orbit

Eccentricity (e): 0.057

Orbit Range: 0.49 AU - 0.55 AU

Year: 250 Days

Day: 10.4 Hours

Environment

Temp: -148 °C

Axial Tilt: 7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 44,952,272 km

• M1: 166,652 km (0.042 R)
• M2: 652,247 km (0.046 R)
• M3: 1,089,072 km (0.058 R)
• M4: 1,812,229 km (0.111 R)
• M5: 2,511,898 km (0.069 R)
• M6: 3,064,064 km (0.11 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 687.6

Radius: 14.9

Gravity: 3.1 G

Time & Orbit

Eccentricity (e): 0.084

Orbit Range: 0.49 AU - 0.59 AU

Year: 265 Days

Day: 10.7 Hours

Environment

Temp: -148 °C

Axial Tilt: 39.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 44,952,272 km

• M1: 185,501 km (0.096 R)
• M2: 781,948 km (0.064 R)
• M3: 1,259,016 km (0.068 R)
• M4: 1,960,779 km (0.088 R)
• M5: 2,592,830 km (0.072 R)
• M6: 3,443,145 km (0.108 R)
• M7: 4,092,998 km (0.113 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 752.8

Radius: 11.9

Gravity: 5.32 G

Time & Orbit

Eccentricity (e): 0.026

Orbit Range: 0.56 AU - 0.58 AU

Year: 287 Days

Day: 6.3 Hours

Environment

Temp: -149 °C

Axial Tilt: 33.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 44,952,272 km

• M1: 147,952 km (0.054 R)
• M2: 573,558 km (0.099 R)
• M3: 979,268 km (0.114 R)
• M4: 1,553,125 km (0.085 R)
• M5: 2,269,848 km (0.043 R)
• M6: 2,885,145 km (0.047 R)
• M7: 3,269,761 km (0.057 R)
• M8: 3,677,415 km (0.108 R)
• M9: 4,094,344 km (0.09 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 802.8

Radius: 13

Gravity: 4.75 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 1.4 AU - 1.8 AU

Year: 1350 Days

Day: 12.7 Hours

Environment

Temp: -199 °C

Axial Tilt: 6.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 44,952,272 km

• M1: 163,062 km (0.094 R)
• M2: 584,030 km (0.103 R)
• M3: 1,100,442 km (0.114 R)
• M4: 1,516,773 km (0.077 R)
• M5: 1,924,577 km (0.118 R)
• M6: 2,480,781 km (0.11 R)
• M7: 3,477,403 km (0.113 R)
• M8: 4,147,751 km (0.076 R)
• M9: 4,783,841 km (0.108 R)
• M10: 5,571,174 km (0.03 R)
• M11: 7,919,113 km (0.091 R)
• M12: 9,897,694 km (0.108 R)
• M13: 10,898,354 km (0.089 R)
• M14: 11,317,079 km (0.117 R)
• M15: 12,223,941 km (0.114 R)
• M16: 13,178,824 km (0.087 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 956.8

Radius: 8.8

Gravity: 12.36 G

Time & Orbit

Eccentricity (e): 0.188

Orbit Range: 1.4 AU - 2.06 AU

Year: 1517 Days

Day: 10.2 Hours

Environment

Temp: -190 °C

Axial Tilt: 15.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 44,952,272 km

• M1: 109,506 km (0.1 R)
• M2: 452,384 km (0.099 R)
• M3: 741,706 km (0.087 R)
• M4: 1,099,993 km (0.082 R)
• M5: 1,389,764 km (0.096 R)
• M6: 1,731,296 km (0.097 R)
• M7: 2,299,319 km (0.118 R)
• M8: 2,853,579 km (0.083 R)
• M9: 3,297,287 km (0.108 R)
• M10: 3,595,435 km (0.06 R)
• M11: 4,189,339 km (0.075 R)
• M12: 5,758,022 km (0.116 R)
• M13: 6,964,828 km (0.117 R)
• M14: 7,263,575 km (0.074 R)
• M15: 7,684,843 km (0.114 R)
• M16: 8,332,153 km (0.101 R)
• M17: 10,282,610 km (0.117 R)
• M18: 10,635,062 km (0.115 R)
• M19: 12,009,567 km (0.031 R)
• M20: 12,962,207 km (0.053 R)
• M21: 14,179,485 km (0.107 R)
• M22: 14,484,365 km (0.107 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 956.7

Radius: 14.5

Gravity: 4.55 G

Time & Orbit

Eccentricity (e): 0.205

Orbit Range: 1.42 AU - 2.16 AU

Year: 1597 Days

Day: 5.2 Hours

Environment

Temp: -191 °C

Axial Tilt: 3.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 44,952,272 km

• M1: 180,415 km (0.056 R)
• M2: 635,791 km (0.098 R)
• M3: 1,098,048 km (0.083 R)
• M4: 1,639,293 km (0.074 R)
• M5: 2,541,069 km (0.108 R)
• M6: 3,052,545 km (0.115 R)
• M7: 3,860,223 km (0.083 R)
• M8: 4,383,367 km (0.049 R)
• M9: 4,848,617 km (0.091 R)
• M10: 5,975,388 km (0.12 R)
• M11: 6,810,593 km (0.085 R)
• M12: 9,224,504 km (0.05 R)
• M13: 10,950,714 km (0.093 R)
• M14: 11,584,111 km (0.116 R)
• M15: 13,759,863 km (0.112 R)
• M16: 14,586,540 km (0.067 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.45 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 291.4

Radius: 12.5

Gravity: 1.86 G

Time & Orbit

Eccentricity (e): 0.041

Orbit Range: 2.35 AU - 2.55 AU

Year: 2557 Days

Day: 13.1 Hours

Environment

Temp: -210 °C

Axial Tilt: 36.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 44,952,272 km

• M1: 159,621 km (0.112 R)
• M2: 705,354 km (0.069 R)
• M3: 1,508,844 km (0.119 R)
• M4: 2,199,238 km (0.108 R)
• M5: 2,625,143 km (0.109 R)
• M6: 3,465,135 km (0.119 R)
• M7: 4,119,626 km (0.075 R)
• M8: 6,314,676 km (0.06 R)
• M9: 7,186,083 km (0.112 R)
• M10: 8,855,596 km (0.048 R)
• M11: 9,781,307 km (0.08 R)
• M12: 10,560,413 km (0.093 R)
• M13: 11,862,662 km (0.034 R)
• M14: 13,473,083 km (0.103 R)

Planet 8 - Gas Giant

Semi-Major Axis: 3.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 425.8

Radius: 12.9

Gravity: 2.56 G

Time & Orbit

Eccentricity (e): 0.242

Orbit Range: 2.57 AU - 4.21 AU

Year: 4162 Days

Day: 8.7 Hours

Environment

Temp: -219 °C

Axial Tilt: 41.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 44,952,272 km

• M1: 318,195 km (0.099 R)
• M2: 777,909 km (0.092 R)
• M3: 1,316,760 km (0.101 R)
• M4: 2,602,554 km (0.088 R)
• M5: 3,570,004 km (0.097 R)
• M6: 4,420,617 km (0.107 R)
• M7: 5,174,890 km (0.067 R)
• M8: 6,407,875 km (0.088 R)
• M9: 7,312,045 km (0.109 R)
• M10: 8,095,040 km (0.115 R)
• M11: 8,682,960 km (0.107 R)
• M12: 9,905,773 km (0.111 R)
• M13: 10,538,572 km (0.086 R)
• M14: 11,030,749 km (0.074 R)
• M15: 12,150,040 km (0.113 R)
• M16: 12,968,191 km (0.081 R)
• M17: 14,066,837 km (0.078 R)
• M18: 15,278,431 km (0.065 R)
• M19: 16,558,240 km (0.105 R)
• M20: 19,759,635 km (0.096 R)
• M21: 20,763,436 km (0.103 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.15 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 234.7

Radius: 6.5

Gravity: 5.56 G

Time & Orbit

Eccentricity (e): 0.224

Orbit Range: 6.32 AU - 9.98 AU

Year: 15516 Days

Day: 16.2 Hours

Environment

Temp: -226 °C

Axial Tilt: 35 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 44,952,272 km

• M1: 80,783 km (0.077 R)
• M2: 413,489 km (0.117 R)
• M3: 724,652 km (0.051 R)
• M4: 2,317,121 km (0.089 R)
• M5: 2,543,014 km (0.091 R)
• M6: 3,723,641 km (0.079 R)
• M7: 5,200,022 km (0.089 R)
• M8: 6,761,225 km (0.037 R)
• M9: 9,919,236 km (0.104 R)
• M10: 10,620,402 km (0.084 R)
• M11: 11,354,329 km (0.111 R)
• M12: 15,737,098 km (0.104 R)
• M13: 18,784,705 km (0.119 R)
• M14: 22,372,661 km (0.115 R)
• M15: 25,923,665 km (0.079 R)
• M16: 28,721,295 km (0.119 R)
• M17: 36,057,126 km (0.085 R)
• M18: 37,469,479 km (0.07 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: 441 - 13,751 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit