🌌 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: 0.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 782.6

Radius: 14.4

Gravity: 3.77 G

Time & Orbit

Eccentricity (e): 0.181

Orbit Range: 0.42 AU - 0.6 AU

Year: 243 Days

Day: 12.3 Hours

Environment

Temp: -137 °C

Axial Tilt: 24.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 40,641,839 km

• M1: 179,069 km (0.119 R)
• M2: 703,409 km (0.087 R)
• M3: 1,314,965 km (0.069 R)
• M4: 1,796,222 km (0.1 R)
• M5: 2,357,064 km (0.038 R)
• M6: 2,865,248 km (0.119 R)
• M7: 3,885,356 km (0.109 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 450.1

Radius: 11.9

Gravity: 3.18 G

Time & Orbit

Eccentricity (e): 0.176

Orbit Range: 0.52 AU - 0.74 AU

Year: 333 Days

Day: 11.5 Hours

Environment

Temp: -148 °C

Axial Tilt: 1.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 40,641,839 km

• M1: 147,952 km (0.076 R)
• M2: 522,845 km (0.119 R)
• M3: 1,108,371 km (0.08 R)
• M4: 1,499,868 km (0.082 R)
• M5: 2,021,815 km (0.074 R)
• M6: 2,429,918 km (0.04 R)
• M7: 2,855,674 km (0.09 R)
• M8: 3,523,179 km (0.092 R)
• M9: 4,108,107 km (0.112 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 61.9

Radius: 9.8

Gravity: 0.64 G

Time & Orbit

Eccentricity (e): 0.165

Orbit Range: 0.6 AU - 0.84 AU

Year: 407 Days

Day: 7.3 Hours

Environment

Temp: -158 °C

Axial Tilt: 3.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 40,641,839 km

• M1: 121,922 km (0.097 R)
• M2: 441,613 km (0.098 R)
• M3: 1,023,249 km (0.085 R)
• M4: 1,513,332 km (0.074 R)
• M5: 2,135,958 km (0.105 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 730.2

Radius: 11.9

Gravity: 5.16 G

Time & Orbit

Eccentricity (e): 0.026

Orbit Range: 1.23 AU - 1.29 AU

Year: 943 Days

Day: 6.1 Hours

Environment

Temp: -182 °C

Axial Tilt: 31.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 40,641,839 km

• M1: 147,952 km (0.071 R)
• M2: 591,510 km (0.068 R)
• M3: 1,028,934 km (0.031 R)
• M4: 1,443,171 km (0.049 R)
• M5: 1,932,057 km (0.07 R)
• M6: 2,462,231 km (0.088 R)
• M7: 2,880,956 km (0.059 R)
• M8: 3,756,552 km (0.081 R)
• M9: 4,623,921 km (0.037 R)
• M10: 5,363,233 km (0.095 R)
• M11: 6,116,010 km (0.112 R)
• M12: 6,799,672 km (0.09 R)
• M13: 7,195,957 km (0.12 R)
• M14: 7,932,876 km (0.048 R)
• M15: 8,398,873 km (0.115 R)
• M16: 9,789,834 km (0.115 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 545.8

Radius: 9.1

Gravity: 6.59 G

Time & Orbit

Eccentricity (e): 0.23

Orbit Range: 1.62 AU - 2.6 AU

Year: 2044 Days

Day: 11.2 Hours

Environment

Temp: -193 °C

Axial Tilt: 31.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 40,641,839 km

• M1: 113,096 km (0.119 R)
• M2: 628,909 km (0.103 R)
• M3: 1,304,793 km (0.105 R)
• M4: 2,037,822 km (0.057 R)
• M5: 2,715,650 km (0.086 R)
• M6: 3,022,924 km (0.1 R)
• M7: 3,435,665 km (0.055 R)
• M8: 4,335,945 km (0.071 R)
• M9: 5,251,334 km (0.087 R)
• M10: 6,315,424 km (0.081 R)
• M11: 7,890,988 km (0.118 R)
• M12: 8,337,837 km (0.101 R)
• M13: 8,676,228 km (0.089 R)
• M14: 9,152,547 km (0.116 R)
• M15: 11,122,901 km (0.101 R)
• M16: 11,495,549 km (0.068 R)
• M17: 12,109,349 km (0.092 R)
• M18: 12,664,208 km (0.114 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 755.6

Radius: 14.4

Gravity: 3.64 G

Time & Orbit

Eccentricity (e): 0.171

Orbit Range: 2.09 AU - 2.95 AU

Year: 2668 Days

Day: 14.5 Hours

Environment

Temp: -205 °C

Axial Tilt: 167.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 40,641,839 km

• M1: 179,368 km (0.112 R)
• M2: 791,074 km (0.112 R)
• M3: 1,385,875 km (0.104 R)
• M4: 2,008,351 km (0.112 R)
• M5: 2,722,083 km (0.095 R)
• M6: 3,173,719 km (0.065 R)
• M7: 3,732,766 km (0.118 R)
• M8: 4,378,730 km (0.118 R)
• M9: 4,911,448 km (0.063 R)
• M10: 5,922,430 km (0.109 R)
• M11: 6,408,174 km (0.09 R)
• M12: 14,376,804 km (0.069 R)
• M13: 15,258,833 km (0.09 R)
• M14: 16,437,964 km (0.101 R)
• M15: 19,035,581 km (0.101 R)
• M16: 20,039,233 km (0.073 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 914.5

Radius: 14.7

Gravity: 4.23 G

Time & Orbit

Eccentricity (e): 0.116

Orbit Range: 2.9 AU - 3.66 AU

Year: 3961 Days

Day: 8.5 Hours

Environment

Temp: -224 °C

Axial Tilt: 36.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 40,641,839 km

• M1: 182,809 km (0.05 R)
• M2: 715,227 km (0.106 R)
• M3: 1,405,921 km (0.112 R)
• M4: 1,952,701 km (0.043 R)
• M5: 2,479,136 km (0.061 R)
• M6: 3,045,065 km (0.046 R)
• M7: 3,676,218 km (0.085 R)
• M8: 5,257,318 km (0.096 R)
• M9: 6,634,666 km (0.103 R)
• M10: 7,737,501 km (0.108 R)
• M11: 9,037,357 km (0.036 R)
• M12: 9,596,554 km (0.047 R)
• M13: 11,231,509 km (0.077 R)
• M14: 11,737,898 km (0.086 R)
• M15: 12,211,375 km (0.087 R)
• M16: 14,075,664 km (0.057 R)
• M17: 14,773,687 km (0.055 R)
• M18: 18,048,534 km (0.049 R)
• M19: 18,680,585 km (0.111 R)
• M20: 20,257,796 km (0.093 R)
• M21: 22,424,422 km (0.088 R)
• M22: 24,664,351 km (0.08 R)
• M23: 25,364,469 km (0.115 R)
• M24: 26,560,952 km (0.11 R)
• M25: 27,131,967 km (0.103 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 905.7

Radius: 11.4

Gravity: 6.97 G

Time & Orbit

Eccentricity (e): 0.109

Orbit Range: 4.19 AU - 5.21 AU

Year: 6795 Days

Day: 12.3 Hours

Environment

Temp: -230 °C

Axial Tilt: 34.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 40,641,839 km

• M1: 141,968 km (0.077 R)
• M2: 501,153 km (0.111 R)
• M3: 1,192,594 km (0.102 R)
• M4: 1,894,059 km (0.047 R)
• M5: 2,696,352 km (0.086 R)
• M6: 6,106,136 km (0.115 R)
• M7: 6,737,140 km (0.068 R)
• M8: 7,527,914 km (0.07 R)
• M9: 8,894,042 km (0.115 R)
• M10: 9,338,946 km (0.105 R)
• M11: 13,108,663 km (0.052 R)
• M12: 15,202,734 km (0.049 R)
• M13: 16,428,539 km (0.039 R)
• M14: 20,965,693 km (0.119 R)
• M15: 22,319,853 km (0.044 R)
• M16: 24,850,600 km (0.115 R)
• M17: 26,916,247 km (0.059 R)
• M18: 27,380,001 km (0.107 R)
• M19: 30,275,318 km (0.083 R)
• M20: 33,689,440 km (0.044 R)
• M21: 34,445,359 km (0.095 R)
• M22: 35,102,093 km (0.113 R)
• M23: 36,215,401 km (0.036 R)
• M24: 39,220,074 km (0.087 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.69 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 103.2

Radius: 7.8

Gravity: 1.7 G

Time & Orbit

Eccentricity (e): 0.058

Orbit Range: 9.13 AU - 10.25 AU

Year: 20115 Days

Day: 20.6 Hours

Environment

Temp: -231 °C

Axial Tilt: 20.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 40,641,839 km

• M1: 107,112 km (0.068 R)
• M2: 370,704 km (0.074 R)
• M3: 623,225 km (0.059 R)
• M4: 4,693,932 km (0.117 R)
• M5: 5,765,053 km (0.077 R)
• M6: 6,446,023 km (0.065 R)
• M7: 7,605,556 km (0.095 R)
• M8: 9,620,340 km (0.114 R)
• M9: 11,913,226 km (0.12 R)
• M10: 14,003,857 km (0.059 R)
• M11: 14,669,866 km (0.114 R)
• M12: 26,795,971 km (0.066 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: 541 - 12,662 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit