🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.34 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 237.8

Radius: 9.1

Gravity: 2.87 G

Time & Orbit

Eccentricity (e): 0.076

Orbit Range: 0.63 AU - 0.73 AU

Year: 357 Days

Day: 6.6 Hours

Environment

Temp: -136 °C

Axial Tilt: 21.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 52,532,968 km

• M1: 113,096 km (0.107 R)
• M2: 470,934 km (0.032 R)
• M3: 774,917 km (0.094 R)
• M4: 1,411,157 km (0.039 R)
• M5: 2,113,220 km (0.081 R)
• M6: 2,795,535 km (0.088 R)
• M7: 3,241,636 km (0.116 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 525.8

Radius: 12.5

Gravity: 3.37 G

Time & Orbit

Eccentricity (e): 0.019

Orbit Range: 0.77 AU - 0.79 AU

Year: 438 Days

Day: 5.6 Hours

Environment

Temp: -142 °C

Axial Tilt: 22.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 52,532,968 km

• M1: 161,566 km (0.062 R)
• M2: 674,537 km (0.111 R)
• M3: 1,467,555 km (0.025 R)
• M4: 1,957,039 km (0.059 R)
• M5: 3,351,890 km (0.12 R)
• M6: 4,307,820 km (0.09 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 759.7

Radius: 10.6

Gravity: 6.76 G

Time & Orbit

Eccentricity (e): 0.069

Orbit Range: 0.89 AU - 1.03 AU

Year: 598 Days

Day: 8.9 Hours

Environment

Temp: -165 °C

Axial Tilt: 34.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 52,532,968 km

• M1: 132,993 km (0.097 R)
• M2: 668,553 km (0.086 R)
• M3: 998,267 km (0.031 R)
• M4: 1,406,370 km (0.109 R)
• M5: 2,086,292 km (0.098 R)
• M6: 2,476,144 km (0.058 R)
• M7: 2,845,651 km (0.045 R)
• M8: 3,214,858 km (0.084 R)
• M9: 3,977,957 km (0.101 R)
• M10: 4,662,367 km (0.12 R)
• M11: 5,352,612 km (0.086 R)
• M12: 6,206,666 km (0.048 R)
• M13: 6,646,185 km (0.098 R)
• M14: 6,999,984 km (0.112 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 408.8

Radius: 10.4

Gravity: 3.78 G

Time & Orbit

Eccentricity (e): 0.226

Orbit Range: 0.84 AU - 1.32 AU

Year: 714 Days

Day: 6.1 Hours

Environment

Temp: -169 °C

Axial Tilt: 27.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 52,532,968 km

• M1: 129,402 km (0.106 R)
• M2: 558,898 km (0.115 R)
• M3: 950,694 km (0.08 R)
• M4: 1,675,945 km (0.108 R)
• M5: 2,133,116 km (0.03 R)
• M6: 2,715,201 km (0.039 R)
• M7: 3,050,151 km (0.084 R)
• M8: 3,886,253 km (0.115 R)
• M9: 4,662,816 km (0.09 R)
• M10: 5,331,967 km (0.044 R)
• M11: 6,176,597 km (0.116 R)
• M12: 6,660,845 km (0.09 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 320.5

Radius: 14.6

Gravity: 1.5 G

Time & Orbit

Eccentricity (e): 0.239

Orbit Range: 2.49 AU - 4.05 AU

Year: 3760 Days

Day: 11.6 Hours

Environment

Temp: -198 °C

Axial Tilt: 35 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 52,532,968 km

• M1: 181,612 km (0.116 R)
• M2: 705,204 km (0.052 R)
• M3: 1,320,650 km (0.073 R)
• M4: 1,885,232 km (0.118 R)
• M5: 2,413,163 km (0.116 R)
• M6: 4,433,931 km (0.067 R)
• M7: 4,937,627 km (0.068 R)
• M8: 8,445,847 km (0.088 R)
• M9: 9,793,724 km (0.115 R)
• M10: 10,885,938 km (0.03 R)
• M11: 11,685,389 km (0.074 R)
• M12: 13,948,356 km (0.093 R)
• M13: 15,877,869 km (0.116 R)
• M14: 17,224,100 km (0.081 R)
• M15: 19,269,253 km (0.104 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.42 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 811.8

Radius: 12.9

Gravity: 4.88 G

Time & Orbit

Eccentricity (e): 0.228

Orbit Range: 2.64 AU - 4.2 AU

Year: 4021 Days

Day: 7.8 Hours

Environment

Temp: -205 °C

Axial Tilt: 22.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 52,532,968 km

• M1: 161,865 km (0.066 R)
• M2: 574,456 km (0.099 R)
• M3: 1,318,406 km (0.084 R)
• M4: 2,484,970 km (0.118 R)
• M5: 4,781,597 km (0.079 R)
• M6: 6,244,664 km (0.107 R)
• M7: 7,129,087 km (0.064 R)
• M8: 8,572,856 km (0.087 R)
• M9: 9,870,019 km (0.093 R)
• M10: 11,984,884 km (0.077 R)
• M11: 13,248,986 km (0.114 R)
• M12: 15,420,399 km (0.077 R)
• M13: 15,870,389 km (0.094 R)
• M14: 18,693,152 km (0.118 R)
• M15: 21,905,616 km (0.102 R)
• M16: 25,547,726 km (0.118 R)
• M17: 26,497,672 km (0.086 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 103.7

Radius: 12.4

Gravity: 0.67 G

Time & Orbit

Eccentricity (e): 0.223

Orbit Range: 3.15 AU - 4.95 AU

Year: 5182 Days

Day: 5.8 Hours

Environment

Temp: -204 °C

Axial Tilt: 14.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 52,532,968 km

• M1: 154,385 km (0.098 R)
• M2: 878,588 km (0.094 R)
• M3: 1,443,320 km (0.054 R)
• M4: 2,345,695 km (0.087 R)
• M5: 2,782,820 km (0.105 R)
• M6: 4,178,867 km (0.063 R)
• M7: 4,658,926 km (0.093 R)
• M8: 5,064,935 km (0.11 R)
• M9: 6,097,460 km (0.051 R)
• M10: 6,824,356 km (0.086 R)
• M11: 7,843,117 km (0.072 R)
• M12: 8,767,333 km (0.052 R)
• M13: 11,167,631 km (0.109 R)
• M14: 12,580,283 km (0.069 R)
• M15: 12,993,173 km (0.099 R)
• M16: 14,197,436 km (0.104 R)
• M17: 15,194,656 km (0.112 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 717.5

Radius: 12.4

Gravity: 4.67 G

Time & Orbit

Eccentricity (e): 0.128

Orbit Range: 3.92 AU - 5.08 AU

Year: 6069 Days

Day: 9.1 Hours

Environment

Temp: -212 °C

Axial Tilt: 10.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 52,532,968 km

• M1: 159,621 km (0.105 R)
• M2: 565,929 km (0.113 R)
• M3: 1,082,939 km (0.118 R)
• M4: 2,279,124 km (0.025 R)
• M5: 3,093,534 km (0.093 R)
• M6: 3,535,895 km (0.115 R)
• M7: 4,735,670 km (0.107 R)
• M8: 8,039,988 km (0.071 R)
• M9: 10,556,673 km (0.067 R)
• M10: 11,867,599 km (0.091 R)
• M11: 13,284,441 km (0.077 R)
• M12: 14,062,050 km (0.102 R)
• M13: 16,015,050 km (0.067 R)
• M14: 16,514,558 km (0.092 R)
• M15: 17,413,791 km (0.068 R)
• M16: 20,019,187 km (0.101 R)
• M17: 20,967,338 km (0.101 R)
• M18: 22,021,704 km (0.072 R)
• M19: 24,481,542 km (0.107 R)
• M20: 28,826,612 km (0.078 R)
• M21: 31,277,624 km (0.103 R)
• M22: 32,953,269 km (0.112 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.97 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 440.6

Radius: 4.5

Gravity: 21.76 G

Time & Orbit

Eccentricity (e): 0.102

Orbit Range: 7.16 AU - 8.78 AU

Year: 14306 Days

Day: 21 Hours

Environment

Temp: -225 °C

Axial Tilt: 48.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 52,532,968 km

• M1: 59,091 km (0.077 R)
• M2: 318,344 km (0.109 R)
• M3: 469,588 km (0.101 R)
• M4: 837,150 km (0.09 R)
• M5: 2,524,763 km (0.113 R)
• M6: 2,890,231 km (0.069 R)
• M7: 4,902,023 km (0.107 R)
• M8: 5,504,304 km (0.065 R)
• M9: 6,042,707 km (0.073 R)
• M10: 6,459,486 km (0.081 R)
• M11: 6,774,240 km (0.089 R)
• M12: 11,676,712 km (0.086 R)
• M13: 14,667,922 km (0.101 R)
• M14: 15,839,123 km (0.038 R)
• M15: 25,441,063 km (0.109 R)
• M16: 30,061,692 km (0.112 R)
• M17: 31,159,292 km (0.087 R)
• M18: 33,434,227 km (0.104 R)
• M19: 34,137,785 km (0.066 R)
• M20: 39,211,247 km (0.047 R)
• M21: 43,503,510 km (0.109 R)
• M22: 50,974,278 km (0.03 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 428 - 12,602 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit