🌌 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: 0.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 450.5

Radius: 11.8

Gravity: 3.24 G

Time & Orbit

Eccentricity (e): 0.065

Orbit Range: 0.55 AU - 0.63 AU

Year: 313 Days

Day: 6.9 Hours

Environment

Temp: -153 °C

Axial Tilt: 6.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 65,566,573 km

• M1: 146,756 km (0.081 R)
• M2: 563,834 km (0.079 R)
• M3: 941,719 km (0.069 R)
• M4: 1,358,049 km (0.04 R)
• M5: 2,213,600 km (0.065 R)
• M6: 2,703,383 km (0.114 R)
• M7: 3,612,489 km (0.115 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 693.1

Radius: 15

Gravity: 3.08 G

Time & Orbit

Eccentricity (e): 0.234

Orbit Range: 0.61 AU - 0.99 AU

Year: 494 Days

Day: 12 Hours

Environment

Temp: -173 °C

Axial Tilt: 10.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 65,566,573 km

• M1: 186,549 km (0.11 R)
• M2: 856,597 km (0.114 R)
• M3: 1,401,433 km (0.106 R)
• M4: 2,028,398 km (0.119 R)
• M5: 2,515,189 km (0.113 R)
• M6: 3,092,487 km (0.041 R)
• M7: 3,995,909 km (0.05 R)
• M8: 4,803,588 km (0.082 R)
• M9: 6,235,688 km (0.096 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 373.9

Radius: 8.8

Gravity: 4.83 G

Time & Orbit

Eccentricity (e): 0.007

Orbit Range: 1.04 AU - 1.06 AU

Year: 743 Days

Day: 11.3 Hours

Environment

Temp: -185 °C

Axial Tilt: 33.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 65,566,573 km

• M1: 111,600 km (0.064 R)
• M2: 424,559 km (0.106 R)
• M3: 701,614 km (0.036 R)
• M4: 991,983 km (0.103 R)
• M5: 1,273,975 km (0.117 R)
• M6: 1,588,131 km (0.097 R)
• M7: 2,023,610 km (0.026 R)
• M8: 2,298,870 km (0.084 R)
• M9: 2,880,956 km (0.07 R)
• M10: 3,851,547 km (0.074 R)
• M11: 4,472,378 km (0.08 R)
• M12: 5,659,587 km (0.033 R)
• M13: 6,403,686 km (0.109 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.29 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 418.1

Radius: 11.9

Gravity: 2.95 G

Time & Orbit

Eccentricity (e): 0.181

Orbit Range: 2.69 AU - 3.89 AU

Year: 4119 Days

Day: 14.6 Hours

Environment

Temp: -212 °C

Axial Tilt: 25.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 65,566,573 km

• M1: 148,102 km (0.089 R)
• M2: 644,168 km (0.106 R)
• M3: 1,019,210 km (0.069 R)
• M4: 1,414,149 km (0.065 R)
• M5: 2,027,051 km (0.076 R)
• M6: 2,699,045 km (0.089 R)
• M7: 3,166,987 km (0.12 R)
• M8: 3,748,025 km (0.097 R)
• M9: 4,465,945 km (0.097 R)
• M10: 4,953,933 km (0.113 R)
• M11: 6,994,748 km (0.086 R)
• M12: 8,117,629 km (0.077 R)
• M13: 9,283,146 km (0.083 R)
• M14: 9,886,923 km (0.095 R)
• M15: 13,401,725 km (0.112 R)
• M16: 14,222,868 km (0.103 R)
• M17: 17,334,504 km (0.064 R)
• M18: 18,661,886 km (0.067 R)
• M19: 21,779,655 km (0.114 R)

Planet 5 - Ice Giant

Semi-Major Axis: 6.95 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 49.7

Radius: 6

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.166

Orbit Range: 5.8 AU - 8.1 AU

Year: 12647 Days

Day: 24.9 Hours

Environment

Temp: -240 °C

Axial Tilt: 29.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 65,566,573 km

• M1: 74,649 km (0.057 R)
• M2: 503,397 km (0.096 R)
• M3: 1,467,705 km (0.1 R)
• M4: 1,851,124 km (0.058 R)
• M5: 2,073,426 km (0.051 R)
• M6: 9,103,629 km (0.081 R)
• M7: 11,740,590 km (0.063 R)
• M8: 12,460,156 km (0.109 R)
• M9: 17,869,615 km (0.113 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.19 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 327.3

Radius: 7.3

Gravity: 6.14 G

Time & Orbit

Eccentricity (e): 0.211

Orbit Range: 5.67 AU - 8.71 AU

Year: 13308 Days

Day: 23.8 Hours

Environment

Temp: -238 °C

Axial Tilt: 2.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 65,566,573 km

• M1: 96,042 km (0.049 R)
• M2: 606,171 km (0.108 R)
• M3: 1,001,259 km (0.117 R)
• M4: 1,884,933 km (0.07 R)
• M5: 2,713,257 km (0.108 R)
• M6: 3,209,174 km (0.066 R)
• M7: 5,917,942 km (0.032 R)
• M8: 7,536,890 km (0.073 R)
• M9: 7,784,176 km (0.097 R)
• M10: 14,890,074 km (0.057 R)
• M11: 16,012,806 km (0.042 R)
• M12: 16,284,925 km (0.057 R)
• M13: 24,674,972 km (0.053 R)
• M14: 26,717,432 km (0.064 R)
• M15: 30,298,506 km (0.118 R)
• M16: 30,715,285 km (0.115 R)
• M17: 31,241,421 km (0.098 R)
• M18: 32,311,794 km (0.095 R)
• M19: 33,962,905 km (0.118 R)
• M20: 36,367,841 km (0.117 R)
• M21: 44,931,272 km (0.046 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.79 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 778.4

Radius: 3.5

Gravity: 63.54 G

Time & Orbit

Eccentricity (e): 0.185

Orbit Range: 6.35 AU - 9.23 AU

Year: 15008 Days

Day: 18.5 Hours

Environment

Temp: -227 °C

Axial Tilt: 0.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 65,566,573 km

• M1: 47,123 km (0.114 R)
• M2: 156,779 km (0.119 R)
• M3: 514,617 km (0.078 R)
• M4: 713,133 km (0.079 R)
• M5: 949,348 km (0.082 R)
• M6: 1,079,648 km (0.119 R)
• M7: 1,641,537 km (0.075 R)
• M8: 2,210,757 km (0.037 R)
• M9: 3,075,134 km (0.108 R)
• M10: 5,399,735 km (0.107 R)
• M11: 7,244,726 km (0.076 R)
• M12: 7,942,600 km (0.069 R)
• M13: 8,332,601 km (0.111 R)
• M14: 10,476,040 km (0.056 R)
• M15: 12,696,072 km (0.041 R)
• M16: 16,349,402 km (0.055 R)
• M17: 16,899,922 km (0.081 R)
• M18: 19,750,509 km (0.089 R)
• M19: 27,575,675 km (0.095 R)
• M20: 36,435,758 km (0.085 R)
• M21: 45,153,873 km (0.085 R)
• M22: 47,969,156 km (0.074 R)
• M23: 49,582,718 km (0.119 R)
• M24: 54,292,358 km (0.114 R)
• M25: 57,652,626 km (0.07 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 390 - 14,312 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit