🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.51 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 1.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 952.7

Radius: 12.2

Gravity: 6.4 G

Time & Orbit

Eccentricity (e): 0.239

Orbit Range: 0.78 AU - 1.26 AU

Year: 724 Days

Day: 11.9 Hours

Environment

Temp: -173 °C

Axial Tilt: 23.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 31,238,461 km

• M1: 233,971 km (0.111 R)
• M2: 622,477 km (0.053 R)
• M3: 1,082,939 km (0.087 R)
• M4: 1,559,707 km (0.079 R)
• M5: 2,001,171 km (0.036 R)
• M6: 2,405,534 km (0.096 R)
• M7: 3,207,977 km (0.084 R)
• M8: 3,797,093 km (0.115 R)
• M9: 4,507,533 km (0.051 R)
• M10: 5,101,437 km (0.087 R)
• M11: 5,629,368 km (0.097 R)
• M12: 6,298,220 km (0.116 R)
• M13: 6,884,195 km (0.083 R)
• M14: 7,721,943 km (0.051 R)
• M15: 8,165,800 km (0.059 R)
• M16: 8,678,771 km (0.063 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 180.1

Radius: 12.7

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.183

Orbit Range: 0.94 AU - 1.36 AU

Year: 867 Days

Day: 12.1 Hours

Environment

Temp: -176 °C

Axial Tilt: 176.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 31,238,461 km

• M1: 157,975 km (0.119 R)
• M2: 567,574 km (0.118 R)
• M3: 1,034,768 km (0.113 R)
• M4: 2,065,199 km (0.109 R)
• M5: 2,550,494 km (0.104 R)
• M6: 3,001,831 km (0.115 R)
• M7: 3,446,585 km (0.12 R)
• M8: 4,149,097 km (0.1 R)
• M9: 5,116,247 km (0.12 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 164.8

Radius: 13

Gravity: 0.98 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 1.16 AU - 1.26 AU

Year: 936 Days

Day: 13.1 Hours

Environment

Temp: -181 °C

Axial Tilt: 37.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 31,238,461 km

• M1: 161,715 km (0.072 R)
• M2: 620,831 km (0.119 R)
• M3: 1,124,677 km (0.058 R)
• M4: 1,615,208 km (0.083 R)
• M5: 2,240,079 km (0.112 R)
• M6: 3,201,694 km (0.088 R)
• M7: 4,210,731 km (0.093 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.42 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 122.2

Radius: 14.6

Gravity: 0.57 G

Time & Orbit

Eccentricity (e): 0.185

Orbit Range: 1.16 AU - 1.68 AU

Year: 1189 Days

Day: 11.3 Hours

Environment

Temp: -197 °C

Axial Tilt: 3.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 31,238,461 km

• M1: 181,612 km (0.103 R)
• M2: 1,083,986 km (0.104 R)
• M3: 1,671,756 km (0.056 R)
• M4: 2,256,684 km (0.057 R)
• M5: 3,157,712 km (0.057 R)
• M6: 4,105,414 km (0.115 R)
• M7: 4,654,289 km (0.09 R)
• M8: 5,724,961 km (0.026 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.44 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 254.3

Radius: 12.5

Gravity: 1.63 G

Time & Orbit

Eccentricity (e): 0.136

Orbit Range: 1.24 AU - 1.64 AU

Year: 1215 Days

Day: 6.8 Hours

Environment

Temp: -181 °C

Axial Tilt: 21.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 31,238,461 km

• M1: 157,078 km (0.096 R)
• M2: 585,825 km (0.119 R)
• M3: 1,038,658 km (0.108 R)
• M4: 1,432,699 km (0.113 R)
• M5: 2,454,303 km (0.102 R)
• M6: 2,868,240 km (0.046 R)
• M7: 3,584,963 km (0.106 R)
• M8: 4,984,003 km (0.089 R)
• M9: 5,394,050 km (0.092 R)
• M10: 6,002,315 km (0.114 R)
• M11: 6,783,665 km (0.079 R)
• M12: 7,913,877 km (0.107 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 421

Radius: 8.1

Gravity: 6.42 G

Time & Orbit

Eccentricity (e): 0.225

Orbit Range: 2.15 AU - 3.41 AU

Year: 3258 Days

Day: 9.7 Hours

Environment

Temp: -219 °C

Axial Tilt: 39.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 31,238,461 km

• M1: 100,679 km (0.101 R)
• M2: 470,186 km (0.108 R)
• M3: 1,145,770 km (0.092 R)
• M4: 1,553,574 km (0.098 R)
• M5: 2,093,772 km (0.115 R)
• M6: 2,942,441 km (0.115 R)
• M7: 3,674,423 km (0.097 R)
• M8: 4,123,965 km (0.113 R)
• M9: 4,969,492 km (0.092 R)
• M10: 5,796,917 km (0.079 R)
• M11: 6,544,907 km (0.1 R)
• M12: 7,325,359 km (0.087 R)
• M13: 8,932,788 km (0.082 R)
• M14: 10,039,962 km (0.112 R)
• M15: 10,530,643 km (0.087 R)
• M16: 10,840,311 km (0.089 R)
• M17: 11,397,114 km (0.054 R)
• M18: 11,972,766 km (0.095 R)
• M19: 14,001,463 km (0.108 R)
• M20: 14,376,206 km (0.118 R)
• M21: 15,640,906 km (0.065 R)
• M22: 16,872,545 km (0.096 R)
• M23: 17,458,221 km (0.119 R)
• M24: 17,892,653 km (0.098 R)
• M25: 18,839,608 km (0.088 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 820.4

Radius: 8

Gravity: 12.82 G

Time & Orbit

Eccentricity (e): 0.152

Orbit Range: 2.44 AU - 3.32 AU

Year: 3436 Days

Day: 11.4 Hours

Environment

Temp: -216 °C

Axial Tilt: 33.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 31,238,461 km

• M1: 100,231 km (0.056 R)
• M2: 386,561 km (0.12 R)
• M3: 681,269 km (0.105 R)
• M4: 1,009,636 km (0.1 R)
• M5: 1,308,832 km (0.059 R)
• M6: 1,864,289 km (0.116 R)
• M7: 2,276,281 km (0.06 R)
• M8: 2,616,168 km (0.041 R)
• M9: 4,328,166 km (0.039 R)
• M10: 4,827,523 km (0.039 R)
• M11: 5,912,706 km (0.037 R)
• M12: 8,163,406 km (0.103 R)
• M13: 8,412,487 km (0.044 R)
• M14: 8,740,106 km (0.065 R)
• M15: 9,459,672 km (0.084 R)
• M16: 9,934,196 km (0.088 R)
• M17: 11,497,793 km (0.094 R)
• M18: 14,268,495 km (0.072 R)
• M19: 14,840,109 km (0.11 R)
• M20: 15,808,157 km (0.045 R)
• M21: 16,817,643 km (0.04 R)
• M22: 18,964,672 km (0.088 R)
• M23: 19,213,902 km (0.086 R)
• M24: 21,760,805 km (0.065 R)

Planet 8 - Ice Giant

Semi-Major Axis: 5.79 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 197.7

Radius: 3.9

Gravity: 13 G

Time & Orbit

Eccentricity (e): 0.147

Orbit Range: 4.94 AU - 6.64 AU

Year: 9793 Days

Day: 18 Hours

Environment

Temp: -228 °C

Axial Tilt: 39 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 31,238,461 km

• M1: 49,367 km (0.085 R)
• M2: 403,765 km (0.063 R)
• M3: 849,267 km (0.046 R)
• M4: 1,060,948 km (0.046 R)
• M5: 1,828,385 km (0.067 R)
• M6: 3,005,870 km (0.117 R)
• M7: 5,977,931 km (0.097 R)
• M8: 8,072,451 km (0.045 R)
• M9: 8,653,638 km (0.087 R)
• M10: 10,117,454 km (0.113 R)
• M11: 11,690,026 km (0.065 R)
• M12: 15,426,383 km (0.119 R)
• M13: 18,933,855 km (0.091 R)
• M14: 20,095,332 km (0.079 R)
• M15: 26,369,916 km (0.068 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: 519 - 11,862 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit