🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 253.8

Radius: 15

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.05

Orbit Range: 0.52 AU - 0.58 AU

Year: 282 Days

Day: 12.5 Hours

Environment

Temp: -147 °C

Axial Tilt: 27.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 71,838,207 km

• M1: 186,549 km (0.083 R)
• M2: 677,529 km (0.105 R)
• M3: 1,206,656 km (0.074 R)
• M4: 1,751,342 km (0.099 R)
• M5: 3,123,604 km (0.094 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 275.3

Radius: 9.7

Gravity: 2.93 G

Time & Orbit

Eccentricity (e): 0.069

Orbit Range: 1.58 AU - 1.82 AU

Year: 1530 Days

Day: 8.7 Hours

Environment

Temp: -194 °C

Axial Tilt: 18.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 71,838,207 km

• M1: 120,576 km (0.073 R)
• M2: 467,045 km (0.111 R)
• M3: 835,205 km (0.054 R)
• M4: 1,325,886 km (0.088 R)
• M5: 1,677,591 km (0.092 R)
• M6: 2,081,505 km (0.102 R)
• M7: 2,435,005 km (0.063 R)
• M8: 2,879,011 km (0.11 R)
• M9: 3,448,081 km (0.09 R)
• M10: 4,106,761 km (0.065 R)
• M11: 5,453,740 km (0.074 R)
• M12: 6,772,744 km (0.066 R)
• M13: 8,240,748 km (0.068 R)
• M14: 8,719,910 km (0.111 R)
• M15: 9,189,348 km (0.105 R)

Planet 3 - Gas Giant

Semi-Major Axis: 3.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 778.6

Radius: 12.4

Gravity: 5.06 G

Time & Orbit

Eccentricity (e): 0.176

Orbit Range: 2.62 AU - 3.74 AU

Year: 3914 Days

Day: 9.2 Hours

Environment

Temp: -214 °C

Axial Tilt: 16.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 71,838,207 km

• M1: 154,235 km (0.113 R)
• M2: 580,141 km (0.092 R)
• M3: 1,002,007 km (0.108 R)
• M4: 1,661,135 km (0.098 R)
• M5: 3,024,420 km (0.105 R)
• M6: 3,831,800 km (0.105 R)
• M7: 5,427,860 km (0.045 R)
• M8: 6,106,286 km (0.081 R)
• M9: 8,522,291 km (0.058 R)
• M10: 9,841,296 km (0.118 R)
• M11: 10,295,924 km (0.099 R)
• M12: 10,938,596 km (0.098 R)
• M13: 12,209,729 km (0.041 R)
• M14: 18,663,980 km (0.107 R)
• M15: 20,541,732 km (0.044 R)
• M16: 22,971,800 km (0.093 R)
• M17: 23,626,590 km (0.092 R)
• M18: 24,594,040 km (0.117 R)

Planet 4 - Gas Giant

Semi-Major Axis: 5.48 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 298.5

Radius: 10.4

Gravity: 2.76 G

Time & Orbit

Eccentricity (e): 0.201

Orbit Range: 4.38 AU - 6.58 AU

Year: 8855 Days

Day: 10.4 Hours

Environment

Temp: -229 °C

Axial Tilt: 49 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 71,838,207 km

• M1: 129,402 km (0.054 R)
• M2: 509,530 km (0.117 R)
• M3: 869,912 km (0.09 R)
• M4: 1,429,856 km (0.115 R)
• M5: 1,779,317 km (0.117 R)
• M6: 3,774,953 km (0.104 R)
• M7: 4,104,816 km (0.118 R)
• M8: 4,904,566 km (0.072 R)
• M9: 6,642,295 km (0.072 R)
• M10: 7,231,860 km (0.068 R)
• M11: 7,706,086 km (0.094 R)
• M12: 8,476,066 km (0.049 R)
• M13: 9,726,106 km (0.115 R)
• M14: 10,952,659 km (0.071 R)
• M15: 14,840,558 km (0.115 R)
• M16: 28,930,134 km (0.1 R)

Planet 5 - Ice Giant

Semi-Major Axis: 5.6 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 45.2

Radius: 6.3

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.222

Orbit Range: 4.36 AU - 6.84 AU

Year: 9147 Days

Day: 19.2 Hours

Environment

Temp: -228 °C

Axial Tilt: 2.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 71,838,207 km

• M1: 81,680 km (0.049 R)
• M2: 299,495 km (0.117 R)
• M3: 749,485 km (0.066 R)
• M4: 1,767,798 km (0.111 R)
• M5: 2,768,757 km (0.117 R)
• M6: 3,252,856 km (0.074 R)
• M7: 3,754,159 km (0.104 R)
• M8: 5,255,822 km (0.07 R)
• M9: 6,721,283 km (0.114 R)
• M10: 11,239,288 km (0.091 R)
• M11: 12,295,150 km (0.08 R)

Planet 6 - Ice Giant

Semi-Major Axis: 5.92 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 150.3

Radius: 4.9

Gravity: 6.26 G

Time & Orbit

Eccentricity (e): 0.06

Orbit Range: 5.56 AU - 6.28 AU

Year: 9942 Days

Day: 23.6 Hours

Environment

Temp: -229 °C

Axial Tilt: 26.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 71,838,207 km

• M1: 61,186 km (0.072 R)
• M2: 330,910 km (0.104 R)
• M3: 1,180,477 km (0.044 R)
• M4: 1,435,541 km (0.043 R)
• M5: 1,818,661 km (0.087 R)
• M6: 2,426,477 km (0.096 R)
• M7: 3,121,509 km (0.098 R)
• M8: 3,653,330 km (0.119 R)
• M9: 4,078,487 km (0.079 R)
• M10: 4,738,812 km (0.083 R)
• M11: 5,134,947 km (0.054 R)
• M12: 5,993,339 km (0.081 R)
• M13: 7,010,007 km (0.1 R)
• M14: 7,178,753 km (0.068 R)
• M15: 9,217,473 km (0.098 R)
• M16: 9,750,191 km (0.108 R)
• M17: 9,918,339 km (0.103 R)
• M18: 10,174,002 km (0.044 R)
• M19: 11,286,711 km (0.073 R)
• M20: 13,079,043 km (0.079 R)
• M21: 14,610,177 km (0.104 R)
• M22: 16,433,924 km (0.032 R)
• M23: 17,155,285 km (0.089 R)
• M24: 17,834,909 km (0.079 R)
• M25: 20,526,324 km (0.069 R)
• M26: 20,872,045 km (0.119 R)
• M27: 27,693,259 km (0.03 R)
• M28: 28,200,246 km (0.115 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.81 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 228

Radius: 4.4

Gravity: 11.78 G

Time & Orbit

Eccentricity (e): 0.02

Orbit Range: 7.65 AU - 7.97 AU

Year: 15066 Days

Day: 22.6 Hours

Environment

Temp: -234 °C

Axial Tilt: 16.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 71,838,207 km

• M1: 56,997 km (0.051 R)
• M2: 368,160 km (0.098 R)
• M3: 564,732 km (0.062 R)
• M4: 820,993 km (0.075 R)
• M5: 971,339 km (0.082 R)
• M6: 1,650,214 km (0.062 R)
• M7: 4,967,547 km (0.118 R)
• M8: 8,086,812 km (0.077 R)
• M9: 11,113,476 km (0.109 R)
• M10: 12,139,418 km (0.078 R)
• M11: 15,463,034 km (0.096 R)
• M12: 16,532,958 km (0.068 R)
• M13: 23,484,472 km (0.034 R)
• M14: 23,657,706 km (0.095 R)
• M15: 25,989,488 km (0.07 R)
• M16: 30,276,814 km (0.1 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.22 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 453.4

Radius: 8

Gravity: 7.08 G

Time & Orbit

Eccentricity (e): 0.108

Orbit Range: 9.12 AU - 11.32 AU

Year: 22552 Days

Day: 18.8 Hours

Environment

Temp: -245 °C

Axial Tilt: 22.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 71,838,207 km

• M1: 99,483 km (0.087 R)
• M2: 1,103,583 km (0.077 R)
• M3: 1,795,324 km (0.085 R)
• M4: 2,055,924 km (0.066 R)
• M5: 2,748,562 km (0.059 R)
• M6: 4,225,392 km (0.058 R)
• M7: 5,264,050 km (0.11 R)
• M8: 7,885,453 km (0.112 R)
• M9: 9,174,837 km (0.036 R)
• M10: 10,128,374 km (0.052 R)
• M11: 11,084,903 km (0.045 R)
• M12: 12,034,999 km (0.043 R)
• M13: 12,630,548 km (0.111 R)
• M14: 13,245,695 km (0.049 R)
• M15: 16,705,295 km (0.093 R)
• M16: 17,952,193 km (0.112 R)
• M17: 19,349,587 km (0.029 R)
• M18: 21,579,343 km (0.068 R)
• M19: 27,892,523 km (0.082 R)
• M20: 32,596,030 km (0.076 R)
• M21: 33,234,813 km (0.095 R)
• M22: 34,143,171 km (0.117 R)
• M23: 34,802,149 km (0.094 R)
• M24: 36,829,649 km (0.105 R)
• M25: 39,221,420 km (0.095 R)
• M26: 41,416,021 km (0.086 R)
• M27: 42,619,386 km (0.058 R)
• M28: 43,537,020 km (0.04 R)
• M29: 44,467,817 km (0.073 R)
• M30: 48,323,852 km (0.102 R)
• M31: 50,502,745 km (0.106 R)
• M32: 51,014,819 km (0.09 R)
• M33: 52,049,138 km (0.108 R)
• M34: 63,569,371 km (0.085 R)
• M35: 67,619,434 km (0.114 R)
• M36: 69,707,521 km (0.036 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 213 - 15,926 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit