🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 461.5

Radius: 9.8

Gravity: 4.81 G

Time & Orbit

Eccentricity (e): 0.009

Orbit Range: 0.55 AU - 0.57 AU

Year: 284 Days

Day: 10.6 Hours

Environment

Temp: -146 °C

Axial Tilt: 30 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 51,771,307 km

• M1: 121,922 km (0.069 R)
• M2: 429,645 km (0.071 R)
• M3: 791,373 km (0.046 R)
• M4: 1,340,547 km (0.06 R)
• M5: 1,760,169 km (0.115 R)
• M6: 2,525,212 km (0.073 R)
• M7: 3,181,648 km (0.097 R)
• M8: 3,856,932 km (0.092 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 177.8

Radius: 14.1

Gravity: 0.89 G

Time & Orbit

Eccentricity (e): 0.101

Orbit Range: 0.52 AU - 0.64 AU

Year: 300 Days

Day: 13.5 Hours

Environment

Temp: -149 °C

Axial Tilt: 41.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 51,771,307 km

• M1: 190,288 km (0.071 R)
• M2: 647,011 km (0.05 R)
• M3: 1,155,644 km (0.108 R)
• M4: 1,627,924 km (0.078 R)
• M5: 2,523,866 km (0.115 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 878.7

Radius: 12.5

Gravity: 5.62 G

Time & Orbit

Eccentricity (e): 0.224

Orbit Range: 0.61 AU - 0.95 AU

Year: 467 Days

Day: 5.4 Hours

Environment

Temp: -174 °C

Axial Tilt: 27.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 51,771,307 km

• M1: 155,731 km (0.06 R)
• M2: 547,079 km (0.061 R)
• M3: 1,025,942 km (0.118 R)
• M4: 1,497,325 km (0.096 R)
• M5: 1,902,137 km (0.098 R)
• M6: 2,527,905 km (0.103 R)
• M7: 3,076,031 km (0.101 R)
• M8: 3,676,368 km (0.113 R)
• M9: 4,095,840 km (0.076 R)
• M10: 4,793,116 km (0.118 R)
• M11: 5,655,548 km (0.074 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 975.7

Radius: 11.3

Gravity: 7.64 G

Time & Orbit

Eccentricity (e): 0.149

Orbit Range: 1.34 AU - 1.8 AU

Year: 1334 Days

Day: 7.7 Hours

Environment

Temp: -201 °C

Axial Tilt: 2.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 51,771,307 km

• M1: 140,622 km (0.116 R)
• M2: 528,380 km (0.089 R)
• M3: 961,166 km (0.106 R)
• M4: 2,763,372 km (0.118 R)
• M5: 3,273,949 km (0.087 R)
• M6: 4,076,243 km (0.093 R)
• M7: 4,963,657 km (0.108 R)
• M8: 5,586,433 km (0.104 R)
• M9: 6,045,699 km (0.12 R)
• M10: 6,731,156 km (0.077 R)
• M11: 7,968,929 km (0.092 R)
• M12: 8,492,671 km (0.088 R)
• M13: 9,008,185 km (0.111 R)
• M14: 9,448,302 km (0.053 R)
• M15: 10,304,002 km (0.12 R)
• M16: 11,067,699 km (0.062 R)
• M17: 11,427,033 km (0.049 R)
• M18: 12,398,223 km (0.079 R)
• M19: 13,022,794 km (0.066 R)
• M20: 13,750,288 km (0.103 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 469.5

Radius: 14.9

Gravity: 2.11 G

Time & Orbit

Eccentricity (e): 0.211

Orbit Range: 2.77 AU - 4.25 AU

Year: 4460 Days

Day: 12.8 Hours

Environment

Temp: -225 °C

Axial Tilt: 21.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 51,771,307 km

• M1: 185,501 km (0.106 R)
• M2: 813,962 km (0.07 R)
• M3: 1,405,622 km (0.079 R)
• M4: 2,118,455 km (0.104 R)
• M5: 2,826,053 km (0.031 R)
• M6: 3,433,271 km (0.111 R)
• M7: 6,425,229 km (0.085 R)
• M8: 8,124,511 km (0.119 R)
• M9: 9,789,086 km (0.117 R)
• M10: 10,350,677 km (0.089 R)
• M11: 13,053,910 km (0.096 R)
• M12: 15,011,099 km (0.043 R)
• M13: 16,588,609 km (0.119 R)
• M14: 19,065,949 km (0.097 R)
• M15: 21,046,176 km (0.112 R)
• M16: 21,511,725 km (0.085 R)
• M17: 22,949,809 km (0.062 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 495.6

Radius: 14.7

Gravity: 2.29 G

Time & Orbit

Eccentricity (e): 0.18

Orbit Range: 3.12 AU - 4.5 AU

Year: 5044 Days

Day: 10.8 Hours

Environment

Temp: -222 °C

Axial Tilt: 23.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 51,771,307 km

• M1: 182,809 km (0.114 R)
• M2: 1,121,086 km (0.104 R)
• M3: 1,814,173 km (0.091 R)
• M4: 2,351,230 km (0.117 R)
• M5: 3,629,544 km (0.037 R)
• M6: 4,519,052 km (0.066 R)
• M7: 11,113,476 km (0.062 R)
• M8: 13,536,214 km (0.105 R)
• M9: 19,211,807 km (0.105 R)
• M10: 20,998,904 km (0.101 R)
• M11: 22,392,258 km (0.083 R)
• M12: 26,224,058 km (0.051 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.22 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 337.8

Radius: 3.4

Gravity: 29.22 G

Time & Orbit

Eccentricity (e): 0.195

Orbit Range: 6.62 AU - 9.82 AU

Year: 15984 Days

Day: 15.5 Hours

Environment

Temp: -238 °C

Axial Tilt: 8.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 51,771,307 km

• M1: 59,241 km (0.087 R)
• M2: 210,035 km (0.085 R)
• M3: 324,328 km (0.115 R)
• M4: 437,723 km (0.107 R)
• M5: 600,635 km (0.109 R)
• M6: 1,884,484 km (0.058 R)
• M7: 2,166,476 km (0.098 R)
• M8: 2,415,706 km (0.104 R)
• M9: 3,134,524 km (0.1 R)
• M10: 3,377,770 km (0.12 R)
• M11: 4,271,019 km (0.12 R)
• M12: 5,310,724 km (0.103 R)
• M13: 6,863,850 km (0.117 R)
• M14: 7,273,897 km (0.084 R)
• M15: 7,400,008 km (0.106 R)
• M16: 9,876,451 km (0.109 R)
• M17: 21,174,531 km (0.113 R)
• M18: 24,121,310 km (0.105 R)
• M19: 24,874,685 km (0.036 R)
• M20: 26,329,375 km (0.053 R)
• M21: 37,252,114 km (0.103 R)
• M22: 44,253,593 km (0.082 R)
• M23: 45,097,475 km (0.102 R)
• M24: 47,693,297 km (0.074 R)
• M25: 50,539,696 km (0.065 R)
• M26: 50,692,585 km (0.104 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 456 - 17,729 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit