🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.45 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 523.1

Radius: 12.8

Gravity: 3.19 G

Time & Orbit

Eccentricity (e): 0.14

Orbit Range: 0.77 AU - 1.01 AU

Year: 569 Days

Day: 6.1 Hours

Environment

Temp: -162 °C

Axial Tilt: 8.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 23,337,850 km

• M1: 159,172 km (0.066 R)
• M2: 595,100 km (0.049 R)
• M3: 993,330 km (0.097 R)
• M4: 1,518,718 km (0.074 R)
• M5: 1,920,537 km (0.082 R)
• M6: 2,461,783 km (0.056 R)
• M7: 2,969,069 km (0.087 R)
• M8: 3,895,229 km (0.048 R)
• M9: 4,544,035 km (0.051 R)
• M10: 5,101,138 km (0.053 R)
• M11: 5,686,215 km (0.094 R)
• M12: 6,334,423 km (0.084 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 438.4

Radius: 10.9

Gravity: 3.69 G

Time & Orbit

Eccentricity (e): 0.223

Orbit Range: 0.73 AU - 1.15 AU

Year: 618 Days

Day: 12.1 Hours

Environment

Temp: -167 °C

Axial Tilt: 19.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 23,337,850 km

• M1: 135,536 km (0.066 R)
• M2: 543,190 km (0.072 R)
• M3: 940,073 km (0.057 R)
• M4: 1,420,881 km (0.112 R)
• M5: 2,417,502 km (0.06 R)
• M6: 2,760,230 km (0.091 R)
• M7: 3,312,246 km (0.049 R)
• M8: 3,896,127 km (0.036 R)
• M9: 4,532,666 km (0.099 R)
• M10: 4,915,487 km (0.076 R)
• M11: 5,386,720 km (0.113 R)
• M12: 6,159,094 km (0.12 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 15.1

Radius: 8.7

Gravity: 0.2 G

Time & Orbit

Eccentricity (e): 0.218

Orbit Range: 1.58 AU - 2.46 AU

Year: 1947 Days

Day: 10.9 Hours

Environment

Temp: -193 °C

Axial Tilt: 38.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 23,337,850 km

• M1: 115,639 km (0.07 R)
• M2: 414,087 km (0.052 R)
• M3: 720,763 km (0.086 R)
• M4: 1,098,647 km (0.101 R)
• M5: 2,019,870 km (0.11 R)
• M6: 2,398,652 km (0.113 R)
• M7: 2,692,313 km (0.12 R)
• M8: 3,131,981 km (0.119 R)
• M9: 3,721,995 km (0.07 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 255.7

Radius: 9.2

Gravity: 3.02 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 2.06 AU - 2.2 AU

Year: 2108 Days

Day: 13.5 Hours

Environment

Temp: -208 °C

Axial Tilt: 33.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 23,337,850 km

• M1: 118,182 km (0.096 R)
• M2: 507,586 km (0.11 R)
• M3: 816,356 km (0.116 R)
• M4: 1,160,281 km (0.097 R)
• M5: 1,711,549 km (0.068 R)
• M6: 2,333,876 km (0.091 R)
• M7: 2,678,550 km (0.082 R)
• M8: 3,364,456 km (0.107 R)
• M9: 4,826,027 km (0.119 R)
• M10: 5,183,267 km (0.07 R)
• M11: 5,752,188 km (0.067 R)
• M12: 6,177,046 km (0.096 R)
• M13: 6,551,040 km (0.082 R)
• M14: 6,915,311 km (0.086 R)
• M15: 7,344,507 km (0.114 R)
• M16: 7,871,990 km (0.086 R)
• M17: 8,368,206 km (0.056 R)
• M18: 9,181,420 km (0.073 R)
• M19: 9,638,142 km (0.113 R)
• M20: 10,303,105 km (0.027 R)
• M21: 10,964,477 km (0.084 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.29 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 446.9

Radius: 14.7

Gravity: 2.07 G

Time & Orbit

Eccentricity (e): 0.101

Orbit Range: 2.06 AU - 2.52 AU

Year: 2350 Days

Day: 8.9 Hours

Environment

Temp: -213 °C

Axial Tilt: 28.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 23,337,850 km

• M1: 182,958 km (0.102 R)
• M2: 662,719 km (0.12 R)
• M3: 1,946,268 km (0.111 R)
• M4: 3,770,166 km (0.09 R)
• M5: 4,228,085 km (0.049 R)
• M6: 5,391,507 km (0.11 R)
• M7: 11,402,798 km (0.117 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 645.8

Radius: 8.4

Gravity: 9.15 G

Time & Orbit

Eccentricity (e): 0.148

Orbit Range: 3.41 AU - 4.59 AU

Year: 5426 Days

Day: 11.9 Hours

Environment

Temp: -211 °C

Axial Tilt: 36 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 23,337,850 km

• M1: 104,419 km (0.094 R)
• M2: 372,947 km (0.113 R)
• M3: 664,963 km (0.113 R)
• M4: 1,164,320 km (0.11 R)
• M5: 1,463,666 km (0.086 R)
• M6: 2,069,088 km (0.101 R)
• M7: 2,651,921 km (0.093 R)
• M8: 8,505,537 km (0.063 R)
• M9: 9,731,192 km (0.069 R)
• M10: 14,498,278 km (0.03 R)
• M11: 15,644,646 km (0.1 R)
• M12: 18,116,901 km (0.106 R)
• M13: 18,508,847 km (0.098 R)
• M14: 19,650,428 km (0.12 R)
• M15: 21,999,264 km (0.061 R)
• M16: 25,495,367 km (0.042 R)
• M17: 27,161,588 km (0.096 R)
• M18: 27,934,560 km (0.086 R)
• M19: 29,614,544 km (0.102 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.06 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 469.3

Radius: 4.2

Gravity: 26.6 G

Time & Orbit

Eccentricity (e): 0.03

Orbit Range: 5.88 AU - 6.24 AU

Year: 10118 Days

Day: 18.8 Hours

Environment

Temp: -237 °C

Axial Tilt: 44.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 23,337,850 km

• M1: 52,210 km (0.108 R)
• M2: 201,658 km (0.102 R)
• M3: 392,545 km (0.117 R)
• M4: 611,406 km (0.07 R)
• M5: 843,732 km (0.045 R)
• M6: 1,381,686 km (0.093 R)
• M7: 1,665,772 km (0.116 R)
• M8: 2,962,487 km (0.074 R)
• M9: 3,387,195 km (0.094 R)
• M10: 3,876,829 km (0.11 R)
• M11: 4,553,460 km (0.07 R)
• M12: 7,167,832 km (0.038 R)
• M13: 8,480,853 km (0.102 R)
• M14: 10,637,605 km (0.038 R)
• M15: 12,845,371 km (0.097 R)
• M16: 14,025,548 km (0.111 R)
• M17: 14,579,509 km (0.119 R)
• M18: 16,941,660 km (0.115 R)
• M19: 17,499,211 km (0.071 R)
• M20: 18,285,647 km (0.109 R)
• M21: 21,103,772 km (0.087 R)
• M22: 22,407,218 km (0.055 R)
• M23: 26,174,541 km (0.039 R)
• M24: 27,773,443 km (0.036 R)
• M25: 31,267,900 km (0.096 R)
• M26: 32,000,331 km (0.09 R)
• M27: 38,157,480 km (0.109 R)
• M28: 39,598,257 km (0.091 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.69 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 57.4

Radius: 5.1

Gravity: 2.21 G

Time & Orbit

Eccentricity (e): 0.202

Orbit Range: 5.34 AU - 8.04 AU

Year: 11736 Days

Day: 17.8 Hours

Environment

Temp: -228 °C

Axial Tilt: 16.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 23,337,850 km

• M1: 66,571 km (0.096 R)
• M2: 1,027,438 km (0.099 R)
• M3: 1,691,054 km (0.082 R)
• M4: 1,913,955 km (0.066 R)
• M5: 2,156,154 km (0.116 R)
• M6: 5,966,711 km (0.117 R)
• M7: 6,633,768 km (0.102 R)
• M8: 11,365,249 km (0.106 R)
• M9: 19,026,904 km (0.099 R)
• M10: 20,978,558 km (0.079 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 423 - 15,033 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit