🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.41 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 154.8

Radius: 12.4

Gravity: 1.01 G

Time & Orbit

Eccentricity (e): 0.062

Orbit Range: 0.77 AU - 0.87 AU

Year: 487 Days

Day: 11.1 Hours

Environment

Temp: -140 °C

Axial Tilt: 8.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 59,176,266 km

• M1: 154,235 km (0.069 R)
• M2: 583,581 km (0.111 R)
• M3: 970,142 km (0.108 R)
• M4: 1,776,624 km (0.104 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 996.7

Radius: 8.8

Gravity: 12.87 G

Time & Orbit

Eccentricity (e): 0.07

Orbit Range: 1.5 AU - 1.72 AU

Year: 1340 Days

Day: 11.9 Hours

Environment

Temp: -175 °C

Axial Tilt: 13.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 59,176,266 km

• M1: 109,655 km (0.075 R)
• M2: 475,422 km (0.095 R)
• M3: 847,771 km (0.052 R)
• M4: 1,465,461 km (0.055 R)
• M5: 1,905,727 km (0.092 R)
• M6: 2,198,939 km (0.114 R)
• M7: 2,483,474 km (0.069 R)
• M8: 3,097,574 km (0.047 R)
• M9: 3,424,744 km (0.119 R)
• M10: 4,567,073 km (0.11 R)
• M11: 5,992,891 km (0.107 R)
• M12: 6,528,152 km (0.072 R)
• M13: 7,015,841 km (0.116 R)
• M14: 7,472,414 km (0.108 R)
• M15: 8,385,858 km (0.078 R)
• M16: 9,055,907 km (0.064 R)
• M17: 11,758,093 km (0.039 R)
• M18: 13,722,014 km (0.032 R)

Planet 3 - Gas Giant

Semi-Major Axis: 3.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 69.7

Radius: 9.6

Gravity: 0.76 G

Time & Orbit

Eccentricity (e): 0.191

Orbit Range: 2.52 AU - 3.72 AU

Year: 3615 Days

Day: 10.3 Hours

Environment

Temp: -205 °C

Axial Tilt: 31.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 59,176,266 km

• M1: 119,379 km (0.071 R)
• M2: 519,553 km (0.094 R)
• M3: 1,136,495 km (0.097 R)
• M4: 1,498,821 km (0.049 R)
• M5: 2,510,402 km (0.086 R)
• M6: 3,037,585 km (0.106 R)
• M7: 3,606,057 km (0.04 R)
• M8: 5,959,530 km (0.084 R)
• M9: 6,755,840 km (0.052 R)
• M10: 10,858,262 km (0.119 R)

Planet 4 - Gas Giant

Semi-Major Axis: 4.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 204.7

Radius: 14.1

Gravity: 1.03 G

Time & Orbit

Eccentricity (e): 0.225

Orbit Range: 3.16 AU - 5 AU

Year: 5406 Days

Day: 14.9 Hours

Environment

Temp: -217 °C

Axial Tilt: 11.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 59,176,266 km

• M1: 175,329 km (0.082 R)
• M2: 722,408 km (0.107 R)
• M3: 1,243,757 km (0.107 R)
• M4: 1,794,426 km (0.079 R)
• M5: 2,255,188 km (0.101 R)
• M6: 3,297,735 km (0.104 R)
• M7: 5,524,949 km (0.113 R)
• M8: 6,547,450 km (0.12 R)
• M9: 7,756,201 km (0.086 R)
• M10: 9,917,441 km (0.051 R)
• M11: 11,055,582 km (0.116 R)
• M12: 13,873,707 km (0.11 R)
• M13: 14,451,005 km (0.087 R)
• M14: 14,944,378 km (0.047 R)
• M15: 15,448,972 km (0.118 R)
• M16: 15,964,935 km (0.069 R)
• M17: 16,492,417 km (0.081 R)
• M18: 19,070,288 km (0.102 R)
• M19: 20,332,146 km (0.099 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 187.3

Radius: 11.5

Gravity: 1.42 G

Time & Orbit

Eccentricity (e): 0.13

Orbit Range: 5.02 AU - 6.52 AU

Year: 9092 Days

Day: 7.8 Hours

Environment

Temp: -216 °C

Axial Tilt: 36.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 59,176,266 km

• M1: 143,165 km (0.105 R)
• M2: 602,431 km (0.118 R)
• M3: 1,235,379 km (0.101 R)
• M4: 2,326,546 km (0.103 R)
• M5: 2,861,957 km (0.114 R)
• M6: 3,519,739 km (0.106 R)
• M7: 3,907,347 km (0.096 R)
• M8: 5,003,600 km (0.099 R)
• M9: 5,666,767 km (0.12 R)
• M10: 6,577,220 km (0.045 R)
• M11: 7,477,799 km (0.115 R)
• M12: 7,939,757 km (0.03 R)
• M13: 9,198,773 km (0.109 R)
• M14: 12,254,459 km (0.062 R)
• M15: 12,847,465 km (0.098 R)
• M16: 14,198,334 km (0.119 R)
• M17: 15,356,820 km (0.107 R)
• M18: 16,163,452 km (0.117 R)
• M19: 19,210,461 km (0.072 R)
• M20: 24,430,679 km (0.097 R)
• M21: 26,908,169 km (0.083 R)

Planet 6 - Ice Giant

Semi-Major Axis: 5.92 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 519.2

Radius: 3.2

Gravity: 50.7 G

Time & Orbit

Eccentricity (e): 0.095

Orbit Range: 5.36 AU - 6.48 AU

Year: 9449 Days

Day: 16.8 Hours

Environment

Temp: -218 °C

Axial Tilt: 32.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 59,176,266 km

• M1: 41,588 km (0.097 R)
• M2: 346,768 km (0.101 R)
• M3: 2,034,232 km (0.089 R)
• M4: 2,750,806 km (0.113 R)
• M5: 5,816,066 km (0.11 R)
• M6: 5,951,452 km (0.111 R)
• M7: 6,263,812 km (0.061 R)
• M8: 8,116,283 km (0.078 R)
• M9: 8,718,564 km (0.12 R)
• M10: 12,459,857 km (0.047 R)
• M11: 12,741,550 km (0.052 R)
• M12: 12,912,690 km (0.116 R)
• M13: 13,317,950 km (0.049 R)
• M14: 21,727,894 km (0.101 R)
• M15: 21,972,187 km (0.111 R)
• M16: 22,799,763 km (0.101 R)
• M17: 25,227,138 km (0.085 R)
• M18: 25,406,805 km (0.112 R)
• M19: 28,887,050 km (0.066 R)
• M20: 31,931,965 km (0.045 R)
• M21: 39,128,221 km (0.106 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.15 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 819.4

Radius: 3.2

Gravity: 80.02 G

Time & Orbit

Eccentricity (e): 0.169

Orbit Range: 5.94 AU - 8.36 AU

Year: 12542 Days

Day: 17.6 Hours

Environment

Temp: -217 °C

Axial Tilt: 134.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 59,176,266 km

• M1: 61,036 km (0.032 R)
• M2: 220,058 km (0.097 R)
• M3: 320,139 km (0.118 R)
• M4: 595,250 km (0.032 R)
• M5: 837,000 km (0.091 R)
• M6: 1,203,814 km (0.081 R)
• M7: 1,394,402 km (0.102 R)
• M8: 1,573,470 km (0.062 R)
• M9: 1,767,648 km (0.087 R)
• M10: 2,223,473 km (0.116 R)
• M11: 2,575,327 km (0.072 R)
• M12: 2,798,827 km (0.099 R)
• M13: 3,881,616 km (0.053 R)
• M14: 4,205,645 km (0.053 R)
• M15: 4,874,048 km (0.076 R)
• M16: 6,539,073 km (0.103 R)
• M17: 6,661,892 km (0.119 R)
• M18: 7,838,180 km (0.102 R)
• M19: 9,095,401 km (0.117 R)
• M20: 12,496,658 km (0.106 R)
• M21: 12,749,479 km (0.066 R)
• M22: 15,038,924 km (0.081 R)
• M23: 15,614,876 km (0.112 R)
• M24: 15,982,139 km (0.11 R)
• M25: 19,214,351 km (0.049 R)
• M26: 24,394,027 km (0.059 R)
• M27: 26,932,553 km (0.084 R)
• M28: 29,196,418 km (0.058 R)
• M29: 33,366,758 km (0.118 R)
• M30: 34,098,291 km (0.081 R)
• M31: 36,742,883 km (0.113 R)
• M32: 38,446,653 km (0.117 R)
• M33: 41,030,507 km (0.093 R)
• M34: 43,150,309 km (0.112 R)
• M35: 44,603,353 km (0.07 R)
• M36: 44,750,408 km (0.084 R)
• M37: 46,691,889 km (0.059 R)
• M38: 54,179,113 km (0.106 R)
• M39: 58,822,182 km (0.081 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 396 - 16,023 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit