🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.34 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 170.9

Radius: 12

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.182

Orbit Range: 0.56 AU - 0.8 AU

Year: 380 Days

Day: 9.3 Hours

Environment

Temp: -157 °C

Axial Tilt: 9.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 67,183,103 km

• M1: 149,299 km (0.095 R)
• M2: 610,808 km (0.072 R)
• M3: 1,000,660 km (0.114 R)
• M4: 1,604,587 km (0.061 R)
• M5: 2,097,362 km (0.12 R)
• M6: 2,608,388 km (0.065 R)
• M7: 3,239,542 km (0.108 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 771.7

Radius: 11.7

Gravity: 5.64 G

Time & Orbit

Eccentricity (e): 0.202

Orbit Range: 0.69 AU - 1.05 AU

Year: 550 Days

Day: 10 Hours

Environment

Temp: -169 °C

Axial Tilt: 29.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 67,183,103 km

• M1: 145,559 km (0.041 R)
• M2: 545,883 km (0.072 R)
• M3: 1,018,761 km (0.095 R)
• M4: 1,619,995 km (0.108 R)
• M5: 2,069,537 km (0.088 R)
• M6: 2,488,710 km (0.085 R)
• M7: 2,873,775 km (0.036 R)
• M8: 3,261,832 km (0.092 R)
• M9: 3,779,441 km (0.044 R)
• M10: 4,262,193 km (0.111 R)
• M11: 5,147,214 km (0.098 R)
• M12: 5,981,222 km (0.104 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.46 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 821.7

Radius: 14.4

Gravity: 3.96 G

Time & Orbit

Eccentricity (e): 0.052

Orbit Range: 1.38 AU - 1.54 AU

Year: 1197 Days

Day: 5.5 Hours

Environment

Temp: -185 °C

Axial Tilt: 7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 67,183,103 km

• M1: 179,218 km (0.116 R)
• M2: 637,287 km (0.075 R)
• M3: 1,182,272 km (0.088 R)
• M4: 1,873,115 km (0.088 R)
• M5: 2,746,318 km (0.099 R)
• M6: 3,241,038 km (0.091 R)
• M7: 3,910,788 km (0.117 R)
• M8: 4,449,639 km (0.118 R)
• M9: 4,978,916 km (0.111 R)
• M10: 5,466,007 km (0.09 R)
• M11: 6,165,227 km (0.07 R)
• M12: 6,899,005 km (0.041 R)
• M13: 8,232,371 km (0.082 R)
• M14: 9,152,996 km (0.102 R)
• M15: 10,628,480 km (0.036 R)
• M16: 11,614,928 km (0.112 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 161.6

Radius: 11.1

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 1.41 AU - 1.69 AU

Year: 1309 Days

Day: 11.7 Hours

Environment

Temp: -198 °C

Axial Tilt: 34.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 67,183,103 km

• M1: 154,535 km (0.114 R)
• M2: 603,627 km (0.1 R)
• M3: 1,020,108 km (0.104 R)
• M4: 1,701,377 km (0.107 R)
• M5: 2,264,164 km (0.117 R)
• M6: 2,720,587 km (0.074 R)
• M7: 3,090,542 km (0.099 R)
• M8: 3,990,972 km (0.065 R)
• M9: 5,007,041 km (0.059 R)
• M10: 6,770,949 km (0.115 R)
• M11: 7,129,535 km (0.11 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 119.1

Radius: 14.1

Gravity: 0.6 G

Time & Orbit

Eccentricity (e): 0.219

Orbit Range: 1.3 AU - 2.02 AU

Year: 1451 Days

Day: 10 Hours

Environment

Temp: -198 °C

Axial Tilt: 45.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 67,183,103 km

• M1: 175,329 km (0.114 R)
• M2: 686,953 km (0.106 R)
• M3: 1,355,506 km (0.036 R)
• M4: 1,844,392 km (0.062 R)
• M5: 2,889,184 km (0.045 R)
• M6: 4,842,184 km (0.112 R)
• M7: 5,467,054 km (0.116 R)
• M8: 5,937,988 km (0.106 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 65.9

Radius: 12.2

Gravity: 0.44 G

Time & Orbit

Eccentricity (e): 0.223

Orbit Range: 2.32 AU - 3.64 AU

Year: 3489 Days

Day: 14.8 Hours

Environment

Temp: -210 °C

Axial Tilt: 31.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 67,183,103 km

• M1: 447,298 km (0.058 R)
• M2: 1,142,928 km (0.118 R)
• M3: 2,036,775 km (0.111 R)
• M4: 3,632,087 km (0.098 R)
• M5: 4,025,978 km (0.117 R)
• M6: 5,606,180 km (0.112 R)
• M7: 8,187,043 km (0.1 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 527.3

Radius: 10.5

Gravity: 4.78 G

Time & Orbit

Eccentricity (e): 0.128

Orbit Range: 2.96 AU - 3.84 AU

Year: 4252 Days

Day: 9.2 Hours

Environment

Temp: -211 °C

Axial Tilt: 19.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 67,183,103 km

• M1: 132,245 km (0.067 R)
• M2: 530,773 km (0.1 R)
• M3: 1,226,703 km (0.081 R)
• M4: 1,747,902 km (0.119 R)
• M5: 4,332,055 km (0.082 R)
• M6: 5,441,323 km (0.109 R)
• M7: 6,427,622 km (0.101 R)
• M8: 8,072,899 km (0.105 R)
• M9: 9,664,471 km (0.114 R)
• M10: 10,184,324 km (0.098 R)
• M11: 10,765,063 km (0.11 R)
• M12: 11,193,212 km (0.104 R)
• M13: 11,992,663 km (0.108 R)
• M14: 12,406,301 km (0.078 R)
• M15: 15,466,924 km (0.112 R)
• M16: 16,458,309 km (0.098 R)
• M17: 17,374,895 km (0.105 R)
• M18: 18,144,127 km (0.105 R)
• M19: 19,059,966 km (0.096 R)
• M20: 19,560,819 km (0.07 R)
• M21: 21,517,709 km (0.106 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.15 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 180.4

Radius: 4.8

Gravity: 7.83 G

Time & Orbit

Eccentricity (e): 0.177

Orbit Range: 7.53 AU - 10.77 AU

Year: 18773 Days

Day: 19.9 Hours

Environment

Temp: -229 °C

Axial Tilt: 28.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 67,183,103 km

• M1: 59,839 km (0.117 R)
• M2: 273,315 km (0.1 R)
• M3: 473,926 km (0.093 R)
• M4: 909,106 km (0.109 R)
• M5: 1,977,235 km (0.094 R)
• M6: 2,311,736 km (0.082 R)
• M7: 2,829,644 km (0.099 R)
• M8: 3,445,688 km (0.107 R)
• M9: 4,037,347 km (0.062 R)
• M10: 6,327,092 km (0.113 R)
• M11: 10,606,639 km (0.034 R)
• M12: 16,421,957 km (0.109 R)
• M13: 21,294,808 km (0.118 R)
• M14: 22,049,230 km (0.117 R)
• M15: 23,522,320 km (0.067 R)
• M16: 24,057,582 km (0.091 R)
• M17: 35,597,262 km (0.039 R)
• M18: 39,717,187 km (0.102 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.46 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 484.3

Radius: 8

Gravity: 7.57 G

Time & Orbit

Eccentricity (e): 0.143

Orbit Range: 8.11 AU - 10.81 AU

Year: 19735 Days

Day: 17.2 Hours

Environment

Temp: -230 °C

Axial Tilt: 37.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 67,183,103 km

• M1: 99,632 km (0.083 R)
• M2: 574,306 km (0.047 R)
• M3: 1,305,989 km (0.096 R)
• M4: 1,786,947 km (0.059 R)
• M5: 2,156,603 km (0.031 R)
• M6: 3,025,318 km (0.065 R)
• M7: 4,655,635 km (0.118 R)
• M8: 6,975,749 km (0.111 R)
• M9: 7,943,647 km (0.06 R)
• M10: 9,050,671 km (0.093 R)
• M11: 9,751,388 km (0.049 R)
• M12: 12,327,762 km (0.09 R)
• M13: 12,786,280 km (0.114 R)
• M14: 13,460,966 km (0.104 R)
• M15: 15,401,250 km (0.081 R)
• M16: 16,634,984 km (0.097 R)
• M17: 17,438,923 km (0.107 R)
• M18: 21,661,472 km (0.026 R)
• M19: 23,306,899 km (0.098 R)
• M20: 24,211,069 km (0.045 R)
• M21: 25,875,794 km (0.102 R)
• M22: 28,062,167 km (0.108 R)
• M23: 28,627,348 km (0.116 R)
• M24: 33,806,276 km (0.08 R)
• M25: 35,750,450 km (0.1 R)
• M26: 37,087,257 km (0.097 R)
• M27: 40,287,754 km (0.114 R)
• M28: 44,426,678 km (0.1 R)
• M29: 66,981,998 km (0.112 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: 218 - 10,367 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit