🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 323.3

Radius: 10.9

Gravity: 2.72 G

Time & Orbit

Eccentricity (e): 0.043

Orbit Range: 0.67 AU - 0.73 AU

Year: 372 Days

Day: 11.9 Hours

Environment

Temp: -147 °C

Axial Tilt: 36 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 82,729,517 km

• M1: 140,173 km (0.093 R)
• M2: 499,956 km (0.044 R)
• M3: 869,463 km (0.055 R)
• M4: 1,446,611 km (0.091 R)
• M5: 1,800,261 km (0.052 R)
• M6: 2,538,825 km (0.079 R)
• M7: 3,209,622 km (0.118 R)
• M8: 3,565,665 km (0.071 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 287.7

Radius: 12.8

Gravity: 1.76 G

Time & Orbit

Eccentricity (e): 0.137

Orbit Range: 0.74 AU - 0.98 AU

Year: 507 Days

Day: 8.7 Hours

Environment

Temp: -159 °C

Axial Tilt: 42.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 82,729,517 km

• M1: 159,621 km (0.1 R)
• M2: 564,582 km (0.088 R)
• M3: 977,024 km (0.07 R)
• M4: 1,527,245 km (0.12 R)
• M5: 1,957,638 km (0.083 R)
• M6: 2,408,675 km (0.032 R)
• M7: 2,870,334 km (0.075 R)
• M8: 3,570,752 km (0.079 R)
• M9: 4,111,548 km (0.12 R)
• M10: 4,610,606 km (0.094 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 204.9

Radius: 14.1

Gravity: 1.03 G

Time & Orbit

Eccentricity (e): 0.173

Orbit Range: 0.8 AU - 1.14 AU

Year: 607 Days

Day: 7.7 Hours

Environment

Temp: -159 °C

Axial Tilt: 23.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 82,729,517 km

• M1: 176,376 km (0.108 R)
• M2: 754,871 km (0.104 R)
• M3: 1,347,428 km (0.114 R)
• M4: 1,921,884 km (0.112 R)
• M5: 2,771,450 km (0.099 R)
• M6: 3,543,824 km (0.046 R)
• M7: 4,220,455 km (0.041 R)
• M8: 4,811,516 km (0.091 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 938.8

Radius: 13.7

Gravity: 5 G

Time & Orbit

Eccentricity (e): 0.027

Orbit Range: 2.46 AU - 2.6 AU

Year: 2559 Days

Day: 10.2 Hours

Environment

Temp: -190 °C

Axial Tilt: 15.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 82,729,517 km

• M1: 171,439 km (0.103 R)
• M2: 798,404 km (0.074 R)
• M3: 1,394,701 km (0.091 R)
• M4: 2,162,437 km (0.041 R)
• M5: 2,644,442 km (0.08 R)
• M6: 3,181,049 km (0.107 R)
• M7: 4,092,100 km (0.113 R)
• M8: 4,700,066 km (0.113 R)
• M9: 5,244,004 km (0.093 R)
• M10: 6,893,619 km (0.114 R)
• M11: 7,789,711 km (0.064 R)
• M12: 10,118,202 km (0.042 R)
• M13: 11,441,993 km (0.12 R)
• M14: 13,522,900 km (0.05 R)
• M15: 14,727,312 km (0.067 R)
• M16: 16,585,766 km (0.103 R)
• M17: 17,019,151 km (0.063 R)
• M18: 18,021,906 km (0.119 R)
• M19: 20,268,118 km (0.038 R)
• M20: 20,889,099 km (0.102 R)
• M21: 21,331,310 km (0.113 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 368.8

Radius: 13

Gravity: 2.18 G

Time & Orbit

Eccentricity (e): 0.065

Orbit Range: 2.43 AU - 2.77 AU

Year: 2666 Days

Day: 5.2 Hours

Environment

Temp: -196 °C

Axial Tilt: 46.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 82,729,517 km

• M1: 162,014 km (0.099 R)
• M2: 958,474 km (0.075 R)
• M3: 1,424,022 km (0.108 R)
• M4: 2,136,407 km (0.059 R)
• M5: 3,014,995 km (0.081 R)
• M6: 3,598,128 km (0.048 R)
• M7: 4,102,871 km (0.081 R)
• M8: 5,575,812 km (0.097 R)
• M9: 6,280,119 km (0.119 R)
• M10: 7,546,913 km (0.079 R)
• M11: 8,044,925 km (0.075 R)
• M12: 8,471,578 km (0.088 R)
• M13: 9,946,463 km (0.064 R)
• M14: 10,690,563 km (0.061 R)
• M15: 13,189,296 km (0.103 R)
• M16: 14,087,931 km (0.105 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 617.7

Radius: 11.2

Gravity: 4.92 G

Time & Orbit

Eccentricity (e): 0.008

Orbit Range: 3.82 AU - 3.88 AU

Year: 4803 Days

Day: 9.3 Hours

Environment

Temp: -216 °C

Axial Tilt: 19.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 82,729,517 km

• M1: 139,575 km (0.033 R)
• M2: 597,045 km (0.115 R)
• M3: 1,082,789 km (0.091 R)
• M4: 1,570,927 km (0.092 R)
• M5: 2,370,677 km (0.101 R)
• M6: 3,505,228 km (0.12 R)
• M7: 4,113,193 km (0.053 R)
• M8: 4,491,377 km (0.07 R)
• M9: 5,768,494 km (0.09 R)
• M10: 6,243,916 km (0.11 R)
• M11: 8,831,361 km (0.056 R)
• M12: 9,709,201 km (0.118 R)
• M13: 10,864,994 km (0.077 R)
• M14: 11,453,213 km (0.117 R)
• M15: 12,110,247 km (0.027 R)
• M16: 12,644,012 km (0.115 R)
• M17: 13,142,771 km (0.079 R)
• M18: 13,551,323 km (0.116 R)
• M19: 16,009,067 km (0.086 R)
• M20: 19,072,981 km (0.047 R)
• M21: 19,795,987 km (0.114 R)
• M22: 20,401,110 km (0.073 R)
• M23: 22,146,918 km (0.103 R)
• M24: 23,914,566 km (0.074 R)
• M25: 24,447,434 km (0.073 R)
• M26: 27,896,113 km (0.096 R)
• M27: 28,401,754 km (0.044 R)

Planet 7 - Ice Giant

Semi-Major Axis: 11.43 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 583.4

Radius: 4.3

Gravity: 31.55 G

Time & Orbit

Eccentricity (e): 0.127

Orbit Range: 9.98 AU - 12.88 AU

Year: 24570 Days

Day: 16.2 Hours

Environment

Temp: -225 °C

Axial Tilt: 25.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 82,729,517 km

• M1: 54,902 km (0.055 R)
• M2: 685,607 km (0.079 R)
• M3: 1,408,314 km (0.12 R)
• M4: 1,698,983 km (0.084 R)
• M5: 1,967,362 km (0.097 R)
• M6: 2,175,901 km (0.105 R)
• M7: 2,492,749 km (0.119 R)
• M8: 3,659,314 km (0.111 R)
• M9: 4,378,580 km (0.112 R)
• M10: 4,920,124 km (0.061 R)
• M11: 5,110,263 km (0.067 R)
• M12: 5,668,563 km (0.057 R)
• M13: 7,338,972 km (0.119 R)
• M14: 8,802,638 km (0.054 R)
• M15: 9,139,832 km (0.034 R)
• M16: 9,661,629 km (0.096 R)
• M17: 11,020,576 km (0.093 R)
• M18: 13,659,183 km (0.117 R)
• M19: 14,034,973 km (0.03 R)
• M20: 14,187,264 km (0.106 R)
• M21: 20,141,259 km (0.052 R)
• M22: 20,530,064 km (0.088 R)
• M23: 20,824,921 km (0.116 R)
• M24: 26,164,368 km (0.05 R)
• M25: 28,290,005 km (0.087 R)
• M26: 32,348,146 km (0.046 R)
• M27: 38,240,657 km (0.05 R)
• M28: 39,287,542 km (0.114 R)
• M29: 42,225,046 km (0.048 R)
• M30: 49,936,218 km (0.1 R)
• M31: 51,006,292 km (0.086 R)
• M32: 57,945,538 km (0.09 R)
• M33: 58,928,845 km (0.089 R)
• M34: 64,853,071 km (0.066 R)
• M35: 65,487,665 km (0.032 R)
• M36: 75,509,675 km (0.109 R)
• M37: 76,447,055 km (0.081 R)
• M38: 79,546,873 km (0.114 R)
• M39: 80,517,314 km (0.106 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 374 - 15,752 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit