🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.5 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 623.7

Radius: 12.2

Gravity: 4.19 G

Time & Orbit

Eccentricity (e): 0.233

Orbit Range: 0.76 AU - 1.22 AU

Year: 692 Days

Day: 10.3 Hours

Environment

Temp: -168 °C

Axial Tilt: 33.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 46,485,127 km

• M1: 152,739 km (0.115 R)
• M2: 556,803 km (0.073 R)
• M3: 964,607 km (0.081 R)
• M4: 1,681,779 km (0.084 R)
• M5: 2,081,804 km (0.116 R)
• M6: 2,493,348 km (0.06 R)
• M7: 3,353,835 km (0.093 R)
• M8: 3,853,641 km (0.045 R)
• M9: 5,140,931 km (0.114 R)
• M10: 6,055,871 km (0.055 R)
• M11: 6,614,021 km (0.097 R)
• M12: 7,012,251 km (0.077 R)
• M13: 7,515,647 km (0.109 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.36 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 467

Radius: 10.3

Gravity: 4.4 G

Time & Orbit

Eccentricity (e): 0.195

Orbit Range: 1.09 AU - 1.63 AU

Year: 1115 Days

Day: 14.6 Hours

Environment

Temp: -179 °C

Axial Tilt: 0.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 46,485,127 km

• M1: 128,205 km (0.118 R)
• M2: 474,674 km (0.092 R)
• M3: 817,403 km (0.085 R)
• M4: 2,317,121 km (0.053 R)
• M5: 2,913,269 km (0.042 R)
• M6: 3,296,239 km (0.083 R)
• M7: 3,787,968 km (0.06 R)
• M8: 4,617,189 km (0.089 R)
• M9: 5,329,574 km (0.085 R)
• M10: 6,611,029 km (0.106 R)
• M11: 7,065,208 km (0.096 R)
• M12: 8,189,436 km (0.091 R)
• M13: 9,094,204 km (0.092 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 577.8

Radius: 14.5

Gravity: 2.75 G

Time & Orbit

Eccentricity (e): 0.051

Orbit Range: 1.34 AU - 1.48 AU

Year: 1177 Days

Day: 11.4 Hours

Environment

Temp: -194 °C

Axial Tilt: 14.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 46,485,127 km

• M1: 196,123 km (0.059 R)
• M2: 671,096 km (0.115 R)
• M3: 1,262,756 km (0.032 R)
• M4: 1,818,213 km (0.036 R)
• M5: 3,755,505 km (0.086 R)
• M6: 5,236,673 km (0.11 R)
• M7: 6,497,335 km (0.085 R)
• M8: 8,673,236 km (0.116 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 538.5

Radius: 15

Gravity: 2.39 G

Time & Orbit

Eccentricity (e): 0.112

Orbit Range: 1.7 AU - 2.12 AU

Year: 1855 Days

Day: 12.6 Hours

Environment

Temp: -197 °C

Axial Tilt: 49.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 46,485,127 km

• M1: 186,997 km (0.088 R)
• M2: 953,686 km (0.088 R)
• M3: 2,059,813 km (0.052 R)
• M4: 5,780,911 km (0.113 R)
• M5: 7,763,531 km (0.107 R)
• M6: 8,787,529 km (0.094 R)
• M7: 10,200,480 km (0.082 R)
• M8: 13,191,091 km (0.08 R)
• M9: 13,679,229 km (0.061 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 990.7

Radius: 9.9

Gravity: 10.11 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 2.23 AU - 2.37 AU

Year: 2452 Days

Day: 8.7 Hours

Environment

Temp: -198 °C

Axial Tilt: 12.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 46,485,127 km

• M1: 126,261 km (0.055 R)
• M2: 543,339 km (0.04 R)
• M3: 1,263,354 km (0.066 R)
• M4: 1,872,965 km (0.113 R)
• M5: 3,143,350 km (0.117 R)
• M6: 3,503,133 km (0.11 R)
• M7: 4,503,345 km (0.049 R)
• M8: 5,327,031 km (0.095 R)
• M9: 6,165,078 km (0.119 R)
• M10: 10,453,151 km (0.099 R)
• M11: 11,636,171 km (0.026 R)
• M12: 12,020,937 km (0.078 R)
• M13: 12,369,949 km (0.119 R)
• M14: 13,272,323 km (0.065 R)
• M15: 14,121,441 km (0.038 R)
• M16: 15,616,522 km (0.042 R)
• M17: 16,295,995 km (0.066 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 363.5

Radius: 8.6

Gravity: 4.91 G

Time & Orbit

Eccentricity (e): 0.239

Orbit Range: 1.82 AU - 2.96 AU

Year: 2597 Days

Day: 9.9 Hours

Environment

Temp: -206 °C

Axial Tilt: 36.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 46,485,127 km

• M1: 106,962 km (0.119 R)
• M2: 395,686 km (0.067 R)
• M3: 691,591 km (0.104 R)
• M4: 974,780 km (0.108 R)
• M5: 1,302,997 km (0.077 R)
• M6: 1,624,184 km (0.069 R)
• M7: 1,907,971 km (0.109 R)
• M8: 2,390,424 km (0.08 R)
• M9: 2,660,897 km (0.113 R)
• M10: 3,280,382 km (0.066 R)
• M11: 4,105,414 km (0.079 R)
• M12: 6,286,252 km (0.041 R)
• M13: 6,647,082 km (0.088 R)
• M14: 9,506,496 km (0.106 R)
• M15: 10,474,544 km (0.078 R)
• M16: 11,130,680 km (0.11 R)
• M17: 12,686,647 km (0.098 R)
• M18: 14,162,730 km (0.117 R)
• M19: 15,749,963 km (0.055 R)

Planet 7 - Ice Giant

Semi-Major Axis: 10.06 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 124.2

Radius: 6.6

Gravity: 2.85 G

Time & Orbit

Eccentricity (e): 0.116

Orbit Range: 8.89 AU - 11.23 AU

Year: 22429 Days

Day: 15.4 Hours

Environment

Temp: -235 °C

Axial Tilt: 34.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 46,485,127 km

• M1: 83,176 km (0.101 R)
• M2: 405,410 km (0.082 R)
• M3: 824,733 km (0.116 R)
• M4: 1,237,324 km (0.115 R)
• M5: 1,477,877 km (0.09 R)
• M6: 1,780,215 km (0.111 R)
• M7: 2,357,064 km (0.093 R)
• M8: 2,750,806 km (0.105 R)
• M9: 13,913,799 km (0.103 R)
• M10: 15,930,228 km (0.089 R)
• M11: 20,131,984 km (0.116 R)
• M12: 23,662,643 km (0.118 R)
• M13: 24,651,336 km (0.108 R)
• M14: 26,423,472 km (0.065 R)
• M15: 27,782,269 km (0.097 R)
• M16: 31,812,436 km (0.092 R)
• M17: 35,629,575 km (0.114 R)
• M18: 42,041,190 km (0.088 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: 424 - 19,780 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit