🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.39 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 316.7

Radius: 12.5

Gravity: 2.03 G

Time & Orbit

Eccentricity (e): 0.043

Orbit Range: 0.75 AU - 0.81 AU

Year: 476 Days

Day: 7.9 Hours

Environment

Temp: -170 °C

Axial Tilt: 9.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 67,863,805 km

• M1: 155,432 km (0.114 R)
• M2: 578,944 km (0.065 R)
• M3: 978,071 km (0.057 R)
• M4: 1,389,914 km (0.063 R)
• M5: 2,071,482 km (0.077 R)
• M6: 2,877,365 km (0.117 R)
• M7: 3,277,989 km (0.092 R)
• M8: 3,955,517 km (0.074 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 356.5

Radius: 12

Gravity: 2.48 G

Time & Orbit

Eccentricity (e): 0.087

Orbit Range: 0.74 AU - 0.88 AU

Year: 503 Days

Day: 12.1 Hours

Environment

Temp: -174 °C

Axial Tilt: 29.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 67,863,805 km

• M1: 149,299 km (0.102 R)
• M2: 617,690 km (0.034 R)
• M3: 1,119,890 km (0.048 R)
• M4: 2,399,400 km (0.111 R)
• M5: 2,954,109 km (0.075 R)
• M6: 3,760,890 km (0.05 R)
• M7: 4,925,510 km (0.105 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 253.1

Radius: 14.6

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.21

Orbit Range: 0.81 AU - 1.25 AU

Year: 722 Days

Day: 12.3 Hours

Environment

Temp: -184 °C

Axial Tilt: 31 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 67,863,805 km

• M1: 181,612 km (0.07 R)
• M2: 816,804 km (0.07 R)
• M3: 1,380,788 km (0.106 R)
• M4: 2,155,556 km (0.108 R)
• M5: 3,063,764 km (0.108 R)
• M6: 3,570,752 km (0.055 R)
• M7: 4,080,132 km (0.1 R)
• M8: 4,537,004 km (0.083 R)
• M9: 5,137,041 km (0.082 R)
• M10: 5,943,972 km (0.071 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 248.2

Radius: 9.7

Gravity: 2.64 G

Time & Orbit

Eccentricity (e): 0.248

Orbit Range: 1.47 AU - 2.45 AU

Year: 1894 Days

Day: 12.5 Hours

Environment

Temp: -204 °C

Axial Tilt: 5.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 67,863,805 km

• M1: 120,576 km (0.093 R)
• M2: 430,842 km (0.085 R)
• M3: 900,430 km (0.079 R)
• M4: 1,573,620 km (0.081 R)
• M5: 1,925,474 km (0.075 R)
• M6: 2,307,398 km (0.04 R)
• M7: 2,935,260 km (0.059 R)
• M8: 4,511,722 km (0.102 R)
• M9: 5,371,162 km (0.082 R)
• M10: 5,722,867 km (0.11 R)
• M11: 6,156,401 km (0.069 R)
• M12: 6,518,877 km (0.066 R)
• M13: 7,262,079 km (0.092 R)
• M14: 8,114,039 km (0.114 R)
• M15: 9,351,812 km (0.094 R)
• M16: 10,233,841 km (0.055 R)
• M17: 10,582,553 km (0.116 R)
• M18: 11,203,534 km (0.118 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 531.2

Radius: 11.8

Gravity: 3.81 G

Time & Orbit

Eccentricity (e): 0.235

Orbit Range: 1.84 AU - 2.96 AU

Year: 2566 Days

Day: 14.4 Hours

Environment

Temp: -210 °C

Axial Tilt: 21.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 67,863,805 km

• M1: 146,756 km (0.096 R)
• M2: 786,436 km (0.06 R)
• M3: 1,491,192 km (0.038 R)
• M4: 2,612,428 km (0.115 R)
• M5: 3,049,403 km (0.114 R)
• M6: 3,534,998 km (0.087 R)
• M7: 4,091,352 km (0.091 R)
• M8: 4,599,087 km (0.112 R)
• M9: 6,757,485 km (0.053 R)
• M10: 7,265,071 km (0.086 R)
• M11: 7,707,432 km (0.116 R)
• M12: 8,581,383 km (0.09 R)
• M13: 9,800,605 km (0.118 R)
• M14: 10,600,655 km (0.1 R)
• M15: 11,881,811 km (0.101 R)
• M16: 12,919,123 km (0.091 R)
• M17: 13,438,078 km (0.095 R)
• M18: 16,394,131 km (0.094 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 902

Radius: 13.5

Gravity: 4.95 G

Time & Orbit

Eccentricity (e): 0.175

Orbit Range: 2.45 AU - 3.49 AU

Year: 3533 Days

Day: 11.8 Hours

Environment

Temp: -210 °C

Axial Tilt: 10.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 67,863,805 km

• M1: 167,998 km (0.104 R)
• M2: 595,400 km (0.064 R)
• M3: 1,436,439 km (0.075 R)
• M4: 2,842,060 km (0.114 R)
• M5: 3,507,920 km (0.082 R)
• M6: 3,986,334 km (0.089 R)
• M7: 4,484,795 km (0.108 R)
• M8: 4,923,416 km (0.055 R)
• M9: 5,663,327 km (0.088 R)
• M10: 6,206,816 km (0.041 R)
• M11: 7,432,172 km (0.101 R)
• M12: 8,049,562 km (0.091 R)
• M13: 8,553,258 km (0.095 R)
• M14: 9,465,805 km (0.114 R)
• M15: 10,233,542 km (0.113 R)
• M16: 13,625,673 km (0.097 R)
• M17: 14,290,785 km (0.039 R)
• M18: 16,703,799 km (0.098 R)
• M19: 21,084,773 km (0.115 R)
• M20: 25,712,433 km (0.087 R)

Planet 7 - Ice Giant

Semi-Major Axis: 5.81 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 339.3

Radius: 4.8

Gravity: 14.73 G

Time & Orbit

Eccentricity (e): 0.004

Orbit Range: 5.79 AU - 5.83 AU

Year: 9667 Days

Day: 23.9 Hours

Environment

Temp: -232 °C

Axial Tilt: 7.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 67,863,805 km

• M1: 59,690 km (0.062 R)
• M2: 271,969 km (0.081 R)
• M3: 475,721 km (0.104 R)
• M4: 695,481 km (0.118 R)
• M5: 1,049,279 km (0.07 R)
• M6: 1,619,846 km (0.091 R)
• M7: 2,555,431 km (0.037 R)
• M8: 3,432,972 km (0.067 R)
• M9: 3,757,749 km (0.111 R)
• M10: 4,309,017 km (0.057 R)
• M11: 4,884,071 km (0.056 R)
• M12: 5,175,189 km (0.087 R)
• M13: 9,538,061 km (0.086 R)
• M14: 14,460,429 km (0.11 R)
• M15: 16,632,590 km (0.045 R)
• M16: 17,291,120 km (0.11 R)
• M17: 18,035,220 km (0.109 R)
• M18: 27,226,214 km (0.103 R)
• M19: 28,047,656 km (0.112 R)
• M20: 28,979,352 km (0.054 R)
• M21: 31,998,985 km (0.106 R)
• M22: 32,403,348 km (0.051 R)
• M23: 33,428,991 km (0.082 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.77 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 604.9

Radius: 7

Gravity: 12.34 G

Time & Orbit

Eccentricity (e): 0.214

Orbit Range: 6.89 AU - 10.65 AU

Year: 17927 Days

Day: 20.1 Hours

Environment

Temp: -223 °C

Axial Tilt: 39.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 67,863,805 km

• M1: 87,964 km (0.111 R)
• M2: 828,623 km (0.076 R)
• M3: 1,184,666 km (0.109 R)
• M4: 1,917,097 km (0.102 R)
• M5: 2,165,429 km (0.099 R)
• M6: 2,435,304 km (0.104 R)
• M7: 2,704,281 km (0.11 R)
• M8: 3,409,934 km (0.061 R)
• M9: 4,556,153 km (0.098 R)
• M10: 4,826,925 km (0.077 R)
• M11: 5,551,278 km (0.047 R)
• M12: 6,471,305 km (0.08 R)
• M13: 6,770,650 km (0.088 R)
• M14: 9,130,706 km (0.05 R)
• M15: 11,611,188 km (0.093 R)
• M16: 13,936,388 km (0.111 R)
• M17: 16,318,435 km (0.06 R)
• M18: 18,443,772 km (0.11 R)
• M19: 27,663,339 km (0.052 R)
• M20: 28,338,624 km (0.067 R)
• M21: 32,623,256 km (0.11 R)
• M22: 34,529,133 km (0.103 R)
• M23: 40,835,282 km (0.07 R)
• M24: 41,563,674 km (0.091 R)
• M25: 45,181,549 km (0.117 R)
• M26: 46,749,035 km (0.048 R)
• M27: 48,190,411 km (0.047 R)
• M28: 52,008,149 km (0.098 R)
• M29: 54,779,748 km (0.105 R)
• M30: 59,119,583 km (0.087 R)
• M31: 60,427,218 km (0.028 R)
• M32: 63,682,916 km (0.098 R)
• M33: 66,050,302 km (0.103 R)
• M34: 66,852,296 km (0.067 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 391 - 13,011 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit