🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 648.6

Radius: 12.5

Gravity: 4.15 G

Time & Orbit

Eccentricity (e): 0.062

Orbit Range: 0.56 AU - 0.64 AU

Year: 310 Days

Day: 8.5 Hours

Environment

Temp: -146 °C

Axial Tilt: 88.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 23,799,387 km

• M1: 155,432 km (0.11 R)
• M2: 572,661 km (0.108 R)
• M3: 969,394 km (0.073 R)
• M4: 1,376,749 km (0.11 R)
• M5: 1,880,146 km (0.077 R)
• M6: 2,326,696 km (0.056 R)
• M7: 2,921,796 km (0.064 R)
• M8: 3,427,736 km (0.09 R)
• M9: 4,028,222 km (0.099 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 21.9

Radius: 13.1

Gravity: 0.13 G

Time & Orbit

Eccentricity (e): 0.137

Orbit Range: 0.66 AU - 0.86 AU

Year: 442 Days

Day: 10.3 Hours

Environment

Temp: -159 °C

Axial Tilt: 49.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (3)

Outer Limit: 23,799,387 km

• M1: 168,148 km (0.076 R)
• M2: 587,321 km (0.118 R)
• M3: 1,442,871 km (0.103 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 562

Radius: 8.6

Gravity: 7.6 G

Time & Orbit

Eccentricity (e): 0.193

Orbit Range: 0.93 AU - 1.37 AU

Year: 822 Days

Day: 12.9 Hours

Environment

Temp: -176 °C

Axial Tilt: 33.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 23,799,387 km

• M1: 114,143 km (0.097 R)
• M2: 488,138 km (0.115 R)
• M3: 1,051,075 km (0.094 R)
• M4: 1,441,076 km (0.053 R)
• M5: 2,103,944 km (0.055 R)
• M6: 2,672,416 km (0.099 R)
• M7: 3,005,720 km (0.101 R)
• M8: 3,326,458 km (0.102 R)
• M9: 4,592,954 km (0.081 R)
• M10: 5,895,203 km (0.107 R)
• M11: 6,589,038 km (0.073 R)
• M12: 7,589,848 km (0.108 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 566.8

Radius: 11.2

Gravity: 4.52 G

Time & Orbit

Eccentricity (e): 0.085

Orbit Range: 2.02 AU - 2.4 AU

Year: 2191 Days

Day: 11.8 Hours

Environment

Temp: -197 °C

Axial Tilt: 38.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 23,799,387 km

• M1: 139,276 km (0.039 R)
• M2: 636,539 km (0.109 R)
• M3: 1,071,869 km (0.027 R)
• M4: 1,511,088 km (0.119 R)
• M5: 2,070,435 km (0.046 R)
• M6: 3,435,665 km (0.086 R)
• M7: 4,022,388 km (0.067 R)
• M8: 6,473,100 km (0.099 R)
• M9: 12,683,356 km (0.118 R)
• M10: 13,606,974 km (0.078 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 569.6

Radius: 10.2

Gravity: 5.47 G

Time & Orbit

Eccentricity (e): 0.218

Orbit Range: 2.43 AU - 3.79 AU

Year: 3657 Days

Day: 7 Hours

Environment

Temp: -211 °C

Axial Tilt: 23.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 23,799,387 km

• M1: 127,009 km (0.108 R)
• M2: 583,132 km (0.114 R)
• M3: 1,051,972 km (0.105 R)
• M4: 1,518,418 km (0.071 R)
• M5: 1,988,006 km (0.075 R)
• M6: 2,823,959 km (0.071 R)
• M7: 3,559,233 km (0.088 R)
• M8: 4,693,035 km (0.083 R)
• M9: 6,307,196 km (0.071 R)
• M10: 6,960,340 km (0.091 R)
• M11: 7,690,677 km (0.083 R)
• M12: 8,228,481 km (0.059 R)
• M13: 8,683,558 km (0.105 R)
• M14: 9,644,425 km (0.091 R)
• M15: 11,429,726 km (0.107 R)
• M16: 12,537,199 km (0.108 R)
• M17: 13,521,404 km (0.093 R)
• M18: 15,432,217 km (0.089 R)
• M19: 16,783,535 km (0.069 R)
• M20: 18,270,986 km (0.108 R)
• M21: 19,228,862 km (0.116 R)
• M22: 19,720,141 km (0.097 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 176.7

Radius: 10.9

Gravity: 1.49 G

Time & Orbit

Eccentricity (e): 0.189

Orbit Range: 3.13 AU - 4.59 AU

Year: 5057 Days

Day: 7.9 Hours

Environment

Temp: -220 °C

Axial Tilt: 18.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 23,799,387 km

• M1: 137,181 km (0.092 R)
• M2: 497,563 km (0.076 R)
• M3: 1,199,177 km (0.101 R)
• M4: 2,170,815 km (0.094 R)
• M5: 2,510,851 km (0.041 R)
• M6: 3,047,757 km (0.096 R)
• M7: 3,946,541 km (0.071 R)
• M8: 4,944,658 km (0.086 R)
• M9: 5,589,874 km (0.117 R)
• M10: 6,182,880 km (0.084 R)
• M11: 6,619,855 km (0.098 R)
• M12: 10,508,802 km (0.103 R)
• M13: 12,198,659 km (0.048 R)
• M14: 13,376,593 km (0.095 R)
• M15: 13,970,048 km (0.104 R)
• M16: 14,533,433 km (0.026 R)
• M17: 16,992,373 km (0.047 R)

Asteroid Belt

Center: 4.18 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 7 - Gas Giant

Semi-Major Axis: 4.49 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 208.3

Radius: 14.4

Gravity: 1 G

Time & Orbit

Eccentricity (e): 0.087

Orbit Range: 4.1 AU - 4.88 AU

Year: 6345 Days

Day: 14.1 Hours

Environment

Temp: -232 °C

Axial Tilt: 130.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 23,799,387 km

• M1: 179,069 km (0.12 R)
• M2: 644,019 km (0.116 R)
• M3: 1,444,667 km (0.069 R)
• M4: 1,954,197 km (0.075 R)
• M5: 2,840,564 km (0.101 R)
• M6: 3,443,145 km (0.079 R)
• M7: 4,108,855 km (0.103 R)
• M8: 4,716,522 km (0.103 R)
• M9: 5,461,669 km (0.08 R)
• M10: 5,945,767 km (0.072 R)
• M11: 10,588,836 km (0.074 R)
• M12: 12,454,920 km (0.112 R)
• M13: 14,890,673 km (0.09 R)
• M14: 15,413,517 km (0.115 R)
• M15: 17,283,790 km (0.113 R)
• M16: 19,178,297 km (0.079 R)

Kuiper Belt

Range: 30 - 48 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 338 - 12,090 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit