🌌 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: 0.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 90.4

Radius: 12.6

Gravity: 0.57 G

Time & Orbit

Eccentricity (e): 0.069

Orbit Range: 0.64 AU - 0.74 AU

Year: 389 Days

Day: 8.2 Hours

Environment

Temp: -153 °C

Axial Tilt: 38.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 62,327,138 km

• M1: 157,227 km (0.082 R)
• M2: 559,346 km (0.069 R)
• M3: 1,010,234 km (0.072 R)
• M4: 1,723,667 km (0.109 R)
• M5: 2,473,900 km (0.093 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 13

Radius: 13.1

Gravity: 0.08 G

Time & Orbit

Eccentricity (e): 0.059

Orbit Range: 1.03 AU - 1.15 AU

Year: 772 Days

Day: 11.8 Hours

Environment

Temp: -178 °C

Axial Tilt: 7.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 62,327,138 km

• M1: 216,019 km (0.114 R)
• M2: 654,491 km (0.029 R)
• M3: 1,490,892 km (0.033 R)
• M4: 2,016,280 km (0.071 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 289.1

Radius: 12.8

Gravity: 1.76 G

Time & Orbit

Eccentricity (e): 0.247

Orbit Range: 0.92 AU - 1.52 AU

Year: 914 Days

Day: 9.7 Hours

Environment

Temp: -183 °C

Axial Tilt: 130.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 62,327,138 km

• M1: 159,172 km (0.113 R)
• M2: 800,797 km (0.114 R)
• M3: 1,647,222 km (0.097 R)
• M4: 2,047,396 km (0.071 R)
• M5: 2,596,421 km (0.076 R)
• M6: 3,193,915 km (0.115 R)
• M7: 4,151,640 km (0.097 R)
• M8: 5,240,862 km (0.097 R)
• M9: 5,954,893 km (0.096 R)
• M10: 6,692,261 km (0.085 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.29 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 652.8

Radius: 14.4

Gravity: 3.15 G

Time & Orbit

Eccentricity (e): 0.052

Orbit Range: 1.22 AU - 1.36 AU

Year: 994 Days

Day: 6.2 Hours

Environment

Temp: -178 °C

Axial Tilt: 6.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 62,327,138 km

• M1: 179,817 km (0.067 R)
• M2: 711,787 km (0.09 R)
• M3: 1,211,144 km (0.074 R)
• M4: 1,943,576 km (0.049 R)
• M5: 2,391,322 km (0.113 R)
• M6: 3,222,787 km (0.115 R)
• M7: 3,692,075 km (0.1 R)
• M8: 4,256,508 km (0.082 R)
• M9: 4,824,382 km (0.103 R)
• M10: 6,219,681 km (0.092 R)
• M11: 6,793,090 km (0.06 R)
• M12: 7,498,743 km (0.072 R)
• M13: 8,488,632 km (0.093 R)
• M14: 9,223,906 km (0.05 R)
• M15: 9,766,347 km (0.092 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 692.2

Radius: 9.5

Gravity: 7.67 G

Time & Orbit

Eccentricity (e): 0.164

Orbit Range: 1.52 AU - 2.12 AU

Year: 1665 Days

Day: 9.8 Hours

Environment

Temp: -194 °C

Axial Tilt: 32 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 62,327,138 km

• M1: 118,182 km (0.116 R)
• M2: 891,903 km (0.092 R)
• M3: 1,425,369 km (0.104 R)
• M4: 1,745,358 km (0.032 R)
• M5: 2,079,261 km (0.102 R)
• M6: 2,468,814 km (0.079 R)
• M7: 2,979,840 km (0.11 R)
• M8: 3,975,264 km (0.075 R)
• M9: 4,719,364 km (0.094 R)
• M10: 6,814,333 km (0.115 R)
• M11: 7,623,507 km (0.052 R)
• M12: 8,986,942 km (0.101 R)
• M13: 9,959,478 km (0.107 R)
• M14: 11,622,109 km (0.054 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.37 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 149

Radius: 8.7

Gravity: 1.97 G

Time & Orbit

Eccentricity (e): 0.072

Orbit Range: 3.13 AU - 3.61 AU

Year: 4196 Days

Day: 11.3 Hours

Environment

Temp: -212 °C

Axial Tilt: 32.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 62,327,138 km

• M1: 108,309 km (0.068 R)
• M2: 475,871 km (0.089 R)
• M3: 981,811 km (0.088 R)
• M4: 1,375,253 km (0.118 R)
• M5: 1,742,666 km (0.089 R)
• M6: 2,763,821 km (0.1 R)
• M7: 3,304,767 km (0.061 R)
• M8: 4,295,553 km (0.063 R)
• M9: 6,987,567 km (0.117 R)
• M10: 8,232,969 km (0.12 R)
• M11: 8,574,052 km (0.073 R)
• M12: 9,894,702 km (0.115 R)
• M13: 11,925,045 km (0.055 R)
• M14: 12,281,836 km (0.115 R)
• M15: 13,565,984 km (0.086 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.94 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 654

Radius: 3.5

Gravity: 53.39 G

Time & Orbit

Eccentricity (e): 0.044

Orbit Range: 7.59 AU - 8.29 AU

Year: 15175 Days

Day: 19.6 Hours

Environment

Temp: -228 °C

Axial Tilt: 16.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 62,327,138 km

• M1: 45,029 km (0.084 R)
• M2: 186,848 km (0.066 R)
• M3: 349,461 km (0.096 R)
• M4: 645,365 km (0.108 R)
• M5: 982,110 km (0.087 R)
• M6: 1,242,410 km (0.029 R)
• M7: 1,410,708 km (0.074 R)
• M8: 1,594,265 km (0.107 R)
• M9: 1,793,379 km (0.093 R)
• M10: 2,065,348 km (0.087 R)
• M11: 2,343,451 km (0.1 R)
• M12: 2,645,788 km (0.059 R)
• M13: 3,461,096 km (0.11 R)
• M14: 4,791,171 km (0.053 R)
• M15: 5,531,980 km (0.088 R)
• M16: 9,159,578 km (0.039 R)
• M17: 12,385,357 km (0.072 R)
• M18: 17,148,105 km (0.119 R)
• M19: 23,975,452 km (0.091 R)
• M20: 24,572,797 km (0.118 R)
• M21: 28,037,184 km (0.058 R)
• M22: 28,478,049 km (0.053 R)
• M23: 30,287,734 km (0.05 R)
• M24: 33,389,347 km (0.12 R)
• M25: 39,936,498 km (0.086 R)
• M26: 42,199,315 km (0.064 R)
• M27: 42,633,000 km (0.081 R)
• M28: 43,803,753 km (0.1 R)
• M29: 51,775,225 km (0.068 R)
• M30: 52,438,542 km (0.073 R)
• M31: 54,804,432 km (0.114 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 177 - 13,917 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit