🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.41 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 76.6

Radius: 10.3

Gravity: 0.72 G

Time & Orbit

Eccentricity (e): 0.202

Orbit Range: 0.65 AU - 0.97 AU

Year: 486 Days

Day: 9.5 Hours

Environment

Temp: -160 °C

Axial Tilt: 35.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 22,729,077 km

• M1: 130,599 km (0.111 R)
• M2: 468,541 km (0.113 R)
• M3: 1,018,612 km (0.071 R)
• M4: 1,376,749 km (0.118 R)
• M5: 1,801,458 km (0.119 R)
• M6: 2,150,769 km (0.032 R)
• M7: 2,537,629 km (0.042 R)
• M8: 2,988,367 km (0.079 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 141.1

Radius: 12.9

Gravity: 0.85 G

Time & Orbit

Eccentricity (e): 0.158

Orbit Range: 0.77 AU - 1.05 AU

Year: 579 Days

Day: 6.3 Hours

Environment

Temp: -175 °C

Axial Tilt: 16.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 22,729,077 km

• M1: 160,369 km (0.063 R)
• M2: 580,889 km (0.114 R)
• M3: 1,049,579 km (0.086 R)
• M4: 1,540,559 km (0.057 R)
• M5: 1,963,771 km (0.065 R)
• M6: 2,541,817 km (0.118 R)
• M7: 3,161,452 km (0.098 R)
• M8: 3,880,270 km (0.092 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 847.6

Radius: 13.4

Gravity: 4.72 G

Time & Orbit

Eccentricity (e): 0.13

Orbit Range: 0.95 AU - 1.23 AU

Year: 759 Days

Day: 8.5 Hours

Environment

Temp: -173 °C

Axial Tilt: 22.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 22,729,077 km

• M1: 167,250 km (0.1 R)
• M2: 786,286 km (0.09 R)
• M3: 1,232,238 km (0.079 R)
• M4: 1,879,548 km (0.1 R)
• M5: 2,442,185 km (0.102 R)
• M6: 3,589,601 km (0.037 R)
• M7: 4,803,887 km (0.116 R)
• M8: 5,612,015 km (0.073 R)
• M9: 6,857,716 km (0.057 R)
• M10: 7,358,270 km (0.065 R)
• M11: 8,331,105 km (0.099 R)
• M12: 8,875,193 km (0.104 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 526.9

Radius: 9.8

Gravity: 5.49 G

Time & Orbit

Eccentricity (e): 0.215

Orbit Range: 0.97 AU - 1.49 AU

Year: 910 Days

Day: 10.9 Hours

Environment

Temp: -185 °C

Axial Tilt: 45.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 22,729,077 km

• M1: 121,922 km (0.109 R)
• M2: 451,187 km (0.038 R)
• M3: 761,752 km (0.069 R)
• M4: 1,353,861 km (0.083 R)
• M5: 2,100,803 km (0.072 R)
• M6: 2,418,549 km (0.107 R)
• M7: 2,780,576 km (0.061 R)
• M8: 3,803,376 km (0.093 R)
• M9: 4,692,287 km (0.092 R)
• M10: 5,113,405 km (0.08 R)
• M11: 5,464,511 km (0.113 R)
• M12: 5,812,027 km (0.11 R)
• M13: 6,133,363 km (0.066 R)
• M14: 6,899,903 km (0.103 R)
• M15: 7,633,680 km (0.068 R)
• M16: 7,970,724 km (0.1 R)
• M17: 8,368,056 km (0.11 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 208.6

Radius: 10.2

Gravity: 2 G

Time & Orbit

Eccentricity (e): 0.09

Orbit Range: 2.5 AU - 3 AU

Year: 3041 Days

Day: 6.6 Hours

Environment

Temp: -210 °C

Axial Tilt: 14.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 22,729,077 km

• M1: 126,859 km (0.083 R)
• M2: 454,478 km (0.088 R)
• M3: 795,711 km (0.1 R)
• M4: 1,160,131 km (0.084 R)
• M5: 1,637,349 km (0.076 R)
• M6: 2,665,684 km (0.047 R)
• M7: 3,440,601 km (0.1 R)
• M8: 4,875,993 km (0.092 R)
• M9: 5,727,654 km (0.087 R)
• M10: 6,348,485 km (0.116 R)
• M11: 8,273,959 km (0.105 R)
• M12: 9,354,205 km (0.112 R)
• M13: 9,778,465 km (0.106 R)
• M14: 11,274,294 km (0.069 R)
• M15: 11,642,903 km (0.097 R)
• M16: 12,443,401 km (0.116 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 508.7

Radius: 9.6

Gravity: 5.52 G

Time & Orbit

Eccentricity (e): 0.16

Orbit Range: 3.28 AU - 4.54 AU

Year: 5156 Days

Day: 7.5 Hours

Environment

Temp: -227 °C

Axial Tilt: 7.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 22,729,077 km

• M1: 119,379 km (0.105 R)
• M2: 624,870 km (0.11 R)
• M3: 939,325 km (0.1 R)
• M4: 1,656,348 km (0.12 R)
• M5: 2,601,507 km (0.081 R)
• M6: 3,173,569 km (0.073 R)
• M7: 3,937,416 km (0.099 R)
• M8: 5,347,675 km (0.103 R)
• M9: 7,035,139 km (0.108 R)
• M10: 7,611,240 km (0.046 R)
• M11: 8,072,750 km (0.072 R)
• M12: 8,628,207 km (0.084 R)
• M13: 9,651,456 km (0.074 R)
• M14: 11,937,461 km (0.12 R)
• M15: 14,347,932 km (0.091 R)
• M16: 16,708,736 km (0.093 R)
• M17: 17,611,110 km (0.119 R)
• M18: 18,168,063 km (0.084 R)
• M19: 19,122,348 km (0.059 R)
• M20: 20,176,564 km (0.042 R)
• M21: 27,247,906 km (0.069 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 226.5

Radius: 14.5

Gravity: 1.08 G

Time & Orbit

Eccentricity (e): 0.174

Orbit Range: 3.44 AU - 4.9 AU

Year: 5679 Days

Day: 13.4 Hours

Environment

Temp: -218 °C

Axial Tilt: 31.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 22,729,077 km

• M1: 180,714 km (0.103 R)
• M2: 783,145 km (0.034 R)
• M3: 1,258,866 km (0.115 R)
• M4: 1,850,974 km (0.112 R)
• M5: 2,612,278 km (0.108 R)
• M6: 3,101,613 km (0.115 R)
• M7: 4,204,299 km (0.081 R)
• M8: 5,248,342 km (0.086 R)
• M9: 5,711,796 km (0.111 R)
• M10: 6,574,976 km (0.105 R)
• M11: 7,491,562 km (0.112 R)
• M12: 8,284,880 km (0.112 R)
• M13: 8,952,236 km (0.106 R)
• M14: 9,846,083 km (0.087 R)
• M15: 11,595,929 km (0.066 R)
• M16: 12,075,091 km (0.081 R)
• M17: 12,887,857 km (0.067 R)
• M18: 14,224,514 km (0.09 R)
• M19: 18,434,796 km (0.062 R)
• M20: 21,598,492 km (0.073 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 378 - 10,411 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit