🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.4 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 224.7

Radius: 13.8

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.015

Orbit Range: 0.78 AU - 0.8 AU

Year: 453 Days

Day: 11.8 Hours

Environment

Temp: -146 °C

Axial Tilt: 21.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 55,113,332 km

• M1: 171,589 km (0.112 R)
• M2: 634,445 km (0.099 R)
• M3: 1,077,703 km (0.083 R)
• M4: 1,519,166 km (0.103 R)
• M5: 2,040,964 km (0.06 R)
• M6: 2,501,875 km (0.111 R)
• M7: 3,219,645 km (0.098 R)
• M8: 3,727,381 km (0.098 R)

Planet 2 - Gas Giant

Semi-Major Axis: 2.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 34.4

Radius: 10.4

Gravity: 0.32 G

Time & Orbit

Eccentricity (e): 0.231

Orbit Range: 2.24 AU - 3.58 AU

Year: 3205 Days

Day: 8.2 Hours

Environment

Temp: -196 °C

Axial Tilt: 5.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 55,113,332 km

• M1: 130,449 km (0.081 R)
• M2: 1,470,996 km (0.059 R)
• M3: 3,527,817 km (0.092 R)
• M4: 4,542,988 km (0.111 R)
• M5: 5,516,721 km (0.063 R)
• M6: 6,582,157 km (0.112 R)

Planet 3 - Gas Giant

Semi-Major Axis: 4.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 347

Radius: 10

Gravity: 3.47 G

Time & Orbit

Eccentricity (e): 0.074

Orbit Range: 3.75 AU - 4.35 AU

Year: 5263 Days

Day: 8.9 Hours

Environment

Temp: -216 °C

Axial Tilt: 7.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 55,113,332 km

• M1: 124,316 km (0.045 R)
• M2: 549,922 km (0.097 R)
• M3: 975,079 km (0.091 R)
• M4: 1,339,350 km (0.071 R)
• M5: 2,026,752 km (0.119 R)
• M6: 2,397,755 km (0.054 R)
• M7: 3,961,950 km (0.053 R)
• M8: 4,499,904 km (0.046 R)
• M9: 5,060,447 km (0.12 R)
• M10: 8,882,224 km (0.064 R)
• M11: 9,529,235 km (0.056 R)
• M12: 9,924,323 km (0.088 R)
• M13: 13,294,613 km (0.082 R)
• M14: 14,603,894 km (0.096 R)
• M15: 15,942,196 km (0.086 R)
• M16: 16,726,388 km (0.079 R)
• M17: 19,233,649 km (0.111 R)

Planet 4 - Gas Giant

Semi-Major Axis: 4.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 781.3

Radius: 14.5

Gravity: 3.72 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 4.11 AU - 4.15 AU

Year: 5419 Days

Day: 9.6 Hours

Environment

Temp: -212 °C

Axial Tilt: 44.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 55,113,332 km

• M1: 180,415 km (0.037 R)
• M2: 710,141 km (0.112 R)
• M3: 1,205,310 km (0.088 R)
• M4: 2,315,177 km (0.05 R)
• M5: 2,831,140 km (0.059 R)
• M6: 4,624,070 km (0.059 R)
• M7: 5,599,149 km (0.115 R)
• M8: 6,344,147 km (0.062 R)
• M9: 8,224,741 km (0.097 R)
• M10: 11,585,457 km (0.038 R)
• M11: 12,849,709 km (0.099 R)
• M12: 14,771,743 km (0.091 R)
• M13: 15,831,793 km (0.106 R)
• M14: 17,906,416 km (0.1 R)
• M15: 18,569,434 km (0.063 R)
• M16: 20,370,144 km (0.101 R)
• M17: 21,386,661 km (0.11 R)
• M18: 22,974,643 km (0.115 R)
• M19: 23,837,074 km (0.118 R)
• M20: 25,048,069 km (0.102 R)
• M21: 27,767,908 km (0.12 R)
• M22: 29,017,649 km (0.111 R)
• M23: 29,840,586 km (0.102 R)
• M24: 30,585,135 km (0.075 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.31 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 676.3

Radius: 10.7

Gravity: 5.91 G

Time & Orbit

Eccentricity (e): 0.136

Orbit Range: 3.72 AU - 4.9 AU

Year: 5777 Days

Day: 5.9 Hours

Environment

Temp: -206 °C

Axial Tilt: 1.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 55,113,332 km

• M1: 134,040 km (0.117 R)
• M2: 636,090 km (0.05 R)
• M3: 1,032,375 km (0.106 R)
• M4: 1,487,152 km (0.099 R)
• M5: 1,830,629 km (0.08 R)
• M6: 2,165,280 km (0.029 R)
• M7: 2,903,844 km (0.089 R)
• M8: 3,259,738 km (0.081 R)
• M9: 3,802,778 km (0.097 R)
• M10: 4,611,055 km (0.099 R)
• M11: 5,296,662 km (0.118 R)
• M12: 10,274,531 km (0.037 R)
• M13: 14,608,382 km (0.087 R)
• M14: 15,423,241 km (0.085 R)
• M15: 15,962,841 km (0.106 R)
• M16: 18,784,107 km (0.082 R)
• M17: 23,145,334 km (0.064 R)
• M18: 27,961,188 km (0.06 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 334.7

Radius: 15

Gravity: 1.49 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 4.83 AU - 5.03 AU

Year: 7068 Days

Day: 8.9 Hours

Environment

Temp: -213 °C

Axial Tilt: 5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 55,113,332 km

• M1: 189,989 km (0.109 R)
• M2: 1,090,718 km (0.095 R)
• M3: 1,646,025 km (0.045 R)
• M4: 3,046,561 km (0.088 R)
• M5: 5,699,529 km (0.115 R)
• M6: 7,144,944 km (0.104 R)
• M7: 12,446,393 km (0.08 R)
• M8: 13,883,281 km (0.109 R)
• M9: 16,301,830 km (0.066 R)
• M10: 17,085,423 km (0.107 R)
• M11: 17,767,889 km (0.107 R)
• M12: 23,367,337 km (0.11 R)
• M13: 24,363,958 km (0.115 R)
• M14: 24,833,396 km (0.093 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 831.2

Radius: 10.5

Gravity: 7.54 G

Time & Orbit

Eccentricity (e): 0.149

Orbit Range: 4.55 AU - 6.15 AU

Year: 7990 Days

Day: 5.5 Hours

Environment

Temp: -208 °C

Axial Tilt: 20 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 55,113,332 km

• M1: 131,945 km (0.109 R)
• M2: 486,941 km (0.047 R)
• M3: 1,063,491 km (0.071 R)
• M4: 2,408,376 km (0.087 R)
• M5: 2,794,787 km (0.05 R)
• M6: 3,133,477 km (0.051 R)
• M7: 3,843,917 km (0.114 R)
• M8: 5,551,427 km (0.081 R)
• M9: 7,080,318 km (0.061 R)
• M10: 7,963,095 km (0.11 R)
• M11: 10,290,389 km (0.061 R)
• M12: 11,315,882 km (0.075 R)
• M13: 11,744,630 km (0.045 R)
• M14: 15,185,381 km (0.103 R)
• M15: 17,416,483 km (0.117 R)
• M16: 17,916,439 km (0.077 R)
• M17: 24,955,917 km (0.087 R)
• M18: 25,500,154 km (0.037 R)
• M19: 26,052,320 km (0.085 R)
• M20: 28,341,167 km (0.082 R)
• M21: 29,333,150 km (0.107 R)
• M22: 30,143,373 km (0.091 R)
• M23: 30,760,763 km (0.084 R)
• M24: 34,308,177 km (0.112 R)
• M25: 39,084,239 km (0.097 R)
• M26: 41,188,333 km (0.097 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.43 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 939.5

Radius: 6.7

Gravity: 20.93 G

Time & Orbit

Eccentricity (e): 0.194

Orbit Range: 5.18 AU - 7.68 AU

Year: 10528 Days

Day: 15.2 Hours

Environment

Temp: -214 °C

Axial Tilt: 33.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 55,113,332 km

• M1: 84,523 km (0.098 R)
• M2: 431,739 km (0.117 R)
• M3: 1,202,916 km (0.083 R)
• M4: 1,869,674 km (0.09 R)
• M5: 3,526,620 km (0.107 R)
• M6: 3,820,879 km (0.119 R)
• M7: 4,581,884 km (0.045 R)
• M8: 4,932,691 km (0.118 R)
• M9: 5,301,150 km (0.117 R)
• M10: 6,131,269 km (0.076 R)
• M11: 7,045,013 km (0.117 R)
• M12: 8,845,273 km (0.093 R)
• M13: 9,189,049 km (0.092 R)
• M14: 11,100,461 km (0.097 R)
• M15: 11,969,774 km (0.057 R)
• M16: 12,512,815 km (0.099 R)
• M17: 15,335,876 km (0.108 R)
• M18: 20,029,958 km (0.063 R)
• M19: 20,623,114 km (0.083 R)
• M20: 21,054,105 km (0.081 R)
• M21: 25,997,567 km (0.094 R)
• M22: 30,983,514 km (0.082 R)
• M23: 33,403,709 km (0.063 R)
• M24: 33,998,061 km (0.098 R)
• M25: 49,075,282 km (0.042 R)
• M26: 52,354,168 km (0.117 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: 535 - 20,468 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit