🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 780.5

Radius: 10.5

Gravity: 7.08 G

Time & Orbit

Eccentricity (e): 0.229

Orbit Range: 0.54 AU - 0.86 AU

Year: 378 Days

Day: 10.4 Hours

Environment

Temp: -130 °C

Axial Tilt: 37.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 37,689,099 km

• M1: 130,599 km (0.087 R)
• M2: 462,407 km (0.071 R)
• M3: 857,196 km (0.102 R)
• M4: 1,222,364 km (0.116 R)
• M5: 1,554,771 km (0.112 R)
• M6: 1,893,759 km (0.103 R)
• M7: 3,026,215 km (0.092 R)
• M8: 3,361,315 km (0.12 R)
• M9: 3,708,980 km (0.09 R)
• M10: 4,241,548 km (0.113 R)
• M11: 4,824,681 km (0.1 R)
• M12: 5,460,472 km (0.105 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 238.2

Radius: 9.2

Gravity: 2.81 G

Time & Orbit

Eccentricity (e): 0.158

Orbit Range: 0.71 AU - 0.97 AU

Year: 497 Days

Day: 8.7 Hours

Environment

Temp: -145 °C

Axial Tilt: 13.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 37,689,099 km

• M1: 114,442 km (0.099 R)
• M2: 519,254 km (0.063 R)
• M3: 1,073,963 km (0.099 R)
• M4: 1,958,835 km (0.12 R)
• M5: 2,682,290 km (0.066 R)
• M6: 3,745,781 km (0.07 R)
• M7: 4,032,560 km (0.081 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 925.1

Radius: 12.8

Gravity: 5.65 G

Time & Orbit

Eccentricity (e): 0.141

Orbit Range: 2.19 AU - 2.91 AU

Year: 2629 Days

Day: 12.9 Hours

Environment

Temp: -196 °C

Axial Tilt: 32.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 37,689,099 km

• M1: 159,172 km (0.107 R)
• M2: 628,012 km (0.116 R)
• M3: 1,045,540 km (0.103 R)
• M4: 1,551,031 km (0.045 R)
• M5: 1,985,463 km (0.092 R)
• M6: 2,988,965 km (0.088 R)
• M7: 3,501,787 km (0.093 R)
• M8: 4,370,801 km (0.106 R)
• M9: 4,868,364 km (0.062 R)
• M10: 5,530,932 km (0.08 R)
• M11: 6,141,890 km (0.089 R)
• M12: 6,738,786 km (0.111 R)
• M13: 8,016,052 km (0.062 R)
• M14: 8,556,250 km (0.095 R)
• M15: 10,323,899 km (0.105 R)
• M16: 11,377,516 km (0.098 R)
• M17: 11,844,262 km (0.12 R)
• M18: 13,415,339 km (0.062 R)
• M19: 14,373,214 km (0.098 R)
• M20: 16,640,669 km (0.056 R)
• M21: 17,803,044 km (0.104 R)
• M22: 18,549,238 km (0.037 R)
• M23: 19,018,826 km (0.072 R)
• M24: 19,737,943 km (0.111 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 195.5

Radius: 14.1

Gravity: 0.98 G

Time & Orbit

Eccentricity (e): 0.166

Orbit Range: 2.17 AU - 3.03 AU

Year: 2707 Days

Day: 11.9 Hours

Environment

Temp: -201 °C

Axial Tilt: 48.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 37,689,099 km

• M1: 175,329 km (0.081 R)
• M2: 656,585 km (0.057 R)
• M3: 1,099,993 km (0.091 R)
• M4: 1,661,883 km (0.113 R)
• M5: 2,215,844 km (0.106 R)
• M6: 3,402,604 km (0.085 R)
• M7: 4,007,428 km (0.117 R)
• M8: 4,530,871 km (0.1 R)
• M9: 6,722,629 km (0.049 R)
• M10: 7,545,567 km (0.037 R)
• M11: 9,176,932 km (0.118 R)
• M12: 9,930,157 km (0.101 R)
• M13: 10,388,375 km (0.105 R)
• M14: 12,327,313 km (0.094 R)
• M15: 12,972,828 km (0.101 R)

Planet 5 - Ice Giant

Semi-Major Axis: 6.08 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 543.8

Radius: 7.7

Gravity: 9.17 G

Time & Orbit

Eccentricity (e): 0.147

Orbit Range: 5.19 AU - 6.97 AU

Year: 9680 Days

Day: 15.1 Hours

Environment

Temp: -230 °C

Axial Tilt: 23.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 37,689,099 km

• M1: 95,743 km (0.119 R)
• M2: 508,633 km (0.06 R)
• M3: 884,123 km (0.05 R)
• M4: 1,463,217 km (0.06 R)
• M5: 1,859,801 km (0.088 R)
• M6: 2,766,513 km (0.118 R)
• M7: 3,352,488 km (0.092 R)
• M8: 3,613,836 km (0.064 R)
• M9: 4,097,486 km (0.046 R)
• M10: 5,415,742 km (0.091 R)
• M11: 6,919,500 km (0.084 R)
• M12: 7,424,243 km (0.086 R)
• M13: 7,911,783 km (0.076 R)
• M14: 9,316,357 km (0.119 R)
• M15: 9,597,152 km (0.092 R)
• M16: 11,778,289 km (0.064 R)
• M17: 12,273,309 km (0.075 R)
• M18: 17,162,466 km (0.115 R)
• M19: 19,269,403 km (0.093 R)
• M20: 21,869,862 km (0.086 R)
• M21: 25,143,812 km (0.104 R)
• M22: 34,060,742 km (0.112 R)
• M23: 35,290,886 km (0.057 R)
• M24: 41,132,533 km (0.116 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.84 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 555.4

Radius: 5.9

Gravity: 15.96 G

Time & Orbit

Eccentricity (e): 0.24

Orbit Range: 5.2 AU - 8.48 AU

Year: 11550 Days

Day: 19.6 Hours

Environment

Temp: -223 °C

Axial Tilt: 27 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 37,689,099 km

• M1: 77,791 km (0.118 R)
• M2: 294,109 km (0.104 R)
• M3: 534,962 km (0.088 R)
• M4: 804,837 km (0.06 R)
• M5: 1,247,048 km (0.11 R)
• M6: 2,234,543 km (0.112 R)
• M7: 2,442,933 km (0.102 R)
• M8: 2,664,338 km (0.044 R)
• M9: 3,361,464 km (0.075 R)
• M10: 3,792,007 km (0.115 R)
• M11: 6,177,943 km (0.106 R)
• M12: 7,101,860 km (0.106 R)
• M13: 8,655,434 km (0.099 R)
• M14: 8,840,935 km (0.057 R)
• M15: 12,068,210 km (0.074 R)
• M16: 13,753,729 km (0.077 R)
• M17: 14,652,663 km (0.07 R)
• M18: 17,143,018 km (0.052 R)
• M19: 17,362,478 km (0.056 R)
• M20: 17,732,284 km (0.057 R)
• M21: 18,488,053 km (0.114 R)
• M22: 19,107,837 km (0.081 R)
• M23: 22,503,409 km (0.027 R)
• M24: 28,574,091 km (0.053 R)
• M25: 32,874,730 km (0.077 R)
• M26: 34,592,712 km (0.065 R)
• M27: 36,249,359 km (0.099 R)
• M28: 37,097,130 km (0.083 R)
• M29: 40,880,909 km (0.081 R)
• M30: 48,617,214 km (0.037 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.58 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 183.4

Radius: 3.9

Gravity: 12.06 G

Time & Orbit

Eccentricity (e): 0.158

Orbit Range: 6.38 AU - 8.78 AU

Year: 13475 Days

Day: 19.1 Hours

Environment

Temp: -222 °C

Axial Tilt: 12 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 37,689,099 km

• M1: 53,556 km (0.085 R)
• M2: 253,718 km (0.063 R)
• M3: 483,052 km (0.076 R)
• M4: 672,592 km (0.069 R)
• M5: 919,877 km (0.099 R)
• M6: 1,116,449 km (0.1 R)
• M7: 2,097,661 km (0.061 R)
• M8: 2,758,286 km (0.076 R)
• M9: 3,784,377 km (0.049 R)
• M10: 4,531,320 km (0.096 R)
• M11: 6,041,660 km (0.103 R)
• M12: 6,729,810 km (0.093 R)
• M13: 8,138,274 km (0.069 R)
• M14: 10,723,175 km (0.048 R)
• M15: 11,883,905 km (0.107 R)
• M16: 15,425,336 km (0.043 R)
• M17: 27,856,021 km (0.033 R)
• M18: 32,627,296 km (0.119 R)
• M19: 36,350,188 km (0.096 R)
• M20: 36,571,144 km (0.101 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: 283 - 18,462 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit