🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.64 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 1.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 762.1

Radius: 11.3

Gravity: 5.97 G

Time & Orbit

Eccentricity (e): 0.154

Orbit Range: 1.08 AU - 1.48 AU

Year: 935 Days

Day: 13.9 Hours

Environment

Temp: -167 °C

Axial Tilt: 18.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 39,436,742 km

• M1: 140,622 km (0.04 R)
• M2: 547,827 km (0.113 R)
• M3: 1,313,320 km (0.111 R)
• M4: 1,703,172 km (0.101 R)
• M5: 2,059,065 km (0.057 R)
• M6: 2,798,378 km (0.088 R)
• M7: 4,466,394 km (0.119 R)
• M8: 7,017,636 km (0.067 R)
• M9: 8,231,473 km (0.12 R)
• M10: 8,819,991 km (0.074 R)
• M11: 9,493,930 km (0.105 R)
• M12: 10,081,401 km (0.052 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.37 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 159.4

Radius: 8

Gravity: 2.49 G

Time & Orbit

Eccentricity (e): 0.022

Orbit Range: 1.34 AU - 1.4 AU

Year: 1035 Days

Day: 7 Hours

Environment

Temp: -181 °C

Axial Tilt: 28.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 39,436,742 km

• M1: 99,632 km (0.12 R)
• M2: 453,581 km (0.064 R)
• M3: 1,335,610 km (0.083 R)
• M4: 1,677,291 km (0.026 R)
• M5: 2,682,888 km (0.047 R)
• M6: 3,590,349 km (0.034 R)
• M7: 4,688,696 km (0.074 R)
• M8: 4,971,137 km (0.086 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 990.1

Radius: 11.1

Gravity: 8.04 G

Time & Orbit

Eccentricity (e): 0.003

Orbit Range: 1.79 AU - 1.81 AU

Year: 1559 Days

Day: 12.5 Hours

Environment

Temp: -185 °C

Axial Tilt: 86.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 39,436,742 km

• M1: 138,079 km (0.086 R)
• M2: 483,351 km (0.059 R)
• M3: 840,142 km (0.109 R)
• M4: 1,375,403 km (0.087 R)
• M5: 1,795,324 km (0.093 R)
• M6: 2,784,166 km (0.116 R)
• M7: 3,301,775 km (0.047 R)
• M8: 5,140,033 km (0.045 R)
• M9: 6,317,368 km (0.12 R)
• M10: 8,593,650 km (0.099 R)
• M11: 9,830,824 km (0.098 R)
• M12: 10,245,210 km (0.091 R)
• M13: 13,146,661 km (0.097 R)
• M14: 14,785,206 km (0.032 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 728.6

Radius: 12.7

Gravity: 4.52 G

Time & Orbit

Eccentricity (e): 0.1

Orbit Range: 1.81 AU - 2.21 AU

Year: 1840 Days

Day: 5.4 Hours

Environment

Temp: -186 °C

Axial Tilt: 1.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 39,436,742 km

• M1: 157,975 km (0.085 R)
• M2: 958,174 km (0.107 R)
• M3: 1,566,888 km (0.06 R)
• M4: 2,081,654 km (0.034 R)
• M5: 2,584,602 km (0.095 R)
• M6: 3,425,642 km (0.074 R)
• M7: 4,343,425 km (0.061 R)
• M8: 5,766,549 km (0.103 R)
• M9: 6,354,768 km (0.049 R)
• M10: 8,925,308 km (0.116 R)
• M11: 10,548,295 km (0.104 R)
• M12: 11,130,830 km (0.065 R)
• M13: 12,280,938 km (0.113 R)
• M14: 12,762,643 km (0.087 R)
• M15: 13,721,117 km (0.119 R)
• M16: 15,088,292 km (0.075 R)
• M17: 15,594,531 km (0.11 R)

Asteroid Belt

Center: 2.78 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 5 - Gas Giant

Semi-Major Axis: 3.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 45

Radius: 12.9

Gravity: 0.27 G

Time & Orbit

Eccentricity (e): 0.135

Orbit Range: 3.06 AU - 4.02 AU

Year: 4301 Days

Day: 8 Hours

Environment

Temp: -206 °C

Axial Tilt: 4.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 39,436,742 km

• M1: 163,959 km (0.114 R)
• M2: 1,066,633 km (0.096 R)
• M3: 2,224,820 km (0.081 R)
• M4: 2,674,062 km (0.064 R)
• M5: 3,696,713 km (0.105 R)
• M6: 4,815,256 km (0.095 R)
• M7: 6,665,782 km (0.089 R)
• M8: 8,561,037 km (0.06 R)
• M9: 9,529,534 km (0.1 R)
• M10: 10,921,841 km (0.107 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 988.7

Radius: 14.2

Gravity: 4.9 G

Time & Orbit

Eccentricity (e): 0.179

Orbit Range: 3.46 AU - 4.96 AU

Year: 5577 Days

Day: 6.3 Hours

Environment

Temp: -207 °C

Axial Tilt: 16.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 39,436,742 km

• M1: 176,825 km (0.038 R)
• M2: 1,133,503 km (0.066 R)
• M3: 1,612,216 km (0.068 R)
• M4: 4,091,352 km (0.107 R)
• M5: 6,024,755 km (0.088 R)
• M6: 6,834,977 km (0.108 R)
• M7: 9,051,718 km (0.076 R)
• M8: 11,510,659 km (0.082 R)
• M9: 12,492,021 km (0.094 R)
• M10: 14,096,458 km (0.116 R)
• M11: 14,918,648 km (0.095 R)
• M12: 18,049,731 km (0.105 R)
• M13: 19,445,479 km (0.05 R)
• M14: 21,826,778 km (0.093 R)
• M15: 22,451,200 km (0.049 R)
• M16: 30,034,316 km (0.069 R)
• M17: 33,824,677 km (0.095 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 975.6

Radius: 8.2

Gravity: 14.51 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 4.31 AU - 5.54 AU

Year: 7046 Days

Day: 12.4 Hours

Environment

Temp: -217 °C

Axial Tilt: 25.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 39,436,742 km

• M1: 102,624 km (0.104 R)
• M2: 358,736 km (0.1 R)
• M3: 690,843 km (0.026 R)
• M4: 1,077,853 km (0.03 R)
• M5: 1,791,285 km (0.117 R)
• M6: 2,747,514 km (0.088 R)
• M7: 3,103,109 km (0.025 R)
• M8: 3,730,971 km (0.114 R)
• M9: 8,500,450 km (0.083 R)
• M10: 11,113,476 km (0.106 R)
• M11: 16,606,860 km (0.097 R)
• M12: 18,656,051 km (0.075 R)
• M13: 20,947,292 km (0.048 R)
• M14: 22,575,216 km (0.113 R)
• M15: 26,543,001 km (0.091 R)
• M16: 29,731,978 km (0.104 R)
• M17: 37,091,296 km (0.1 R)
• M18: 40,198,743 km (0.103 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.58 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 51.9

Radius: 6.6

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.114

Orbit Range: 6.72 AU - 8.44 AU

Year: 13475 Days

Day: 16.1 Hours

Environment

Temp: -235 °C

Axial Tilt: 37.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 39,436,742 km

• M1: 82,129 km (0.107 R)
• M2: 583,880 km (0.093 R)
• M3: 823,985 km (0.088 R)
• M4: 1,223,112 km (0.083 R)
• M5: 1,478,476 km (0.107 R)
• M6: 2,467,018 km (0.083 R)
• M7: 6,337,265 km (0.065 R)
• M8: 8,504,938 km (0.098 R)
• M9: 9,248,888 km (0.12 R)
• M10: 12,947,247 km (0.087 R)
• M11: 13,432,692 km (0.095 R)
• M12: 14,081,797 km (0.067 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.99 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 179.4

Radius: 7

Gravity: 3.66 G

Time & Orbit

Eccentricity (e): 0.025

Orbit Range: 7.79 AU - 8.19 AU

Year: 14583 Days

Day: 21.3 Hours

Environment

Temp: -228 °C

Axial Tilt: 36.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 39,436,742 km

• M1: 87,066 km (0.073 R)
• M2: 1,425,369 km (0.036 R)
• M3: 1,788,742 km (0.084 R)
• M4: 4,520,848 km (0.032 R)
• M5: 5,912,257 km (0.095 R)
• M6: 13,296,857 km (0.116 R)
• M7: 15,839,273 km (0.082 R)
• M8: 18,832,427 km (0.097 R)
• M9: 21,154,336 km (0.106 R)
• M10: 23,744,473 km (0.106 R)
• M11: 30,429,404 km (0.086 R)
• M12: 38,616,147 km (0.107 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 438 - 11,304 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit