🌌 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 - Terrestrial

Semi-Major Axis: 0.55 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.11

Radius: 1.35

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.005

Orbit Range: 0.55 AU - 0.55 AU

Year: 263 Days

Day: 17.7 Hours

Environment

Temp: -131 °C

Axial Tilt: 36.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.25

Radius: 1.38

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.099

Orbit Range: 0.54 AU - 0.66 AU

Year: 300 Days

Day: 41.6 Hours

Environment

Temp: -135 °C

Axial Tilt: 4.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 55,248,331 km

• M1: 36,203 km (0.112 R)
• M2: 167,550 km (0.083 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 875.8

Radius: 9.4

Gravity: 9.91 G

Time & Orbit

Eccentricity (e): 0.005

Orbit Range: 1.02 AU - 1.04 AU

Year: 675 Days

Day: 11.9 Hours

Environment

Temp: -161 °C

Axial Tilt: 35.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 55,248,331 km

• M1: 116,836 km (0.06 R)
• M2: 425,456 km (0.069 R)
• M3: 881,879 km (0.045 R)
• M4: 1,908,869 km (0.101 R)
• M5: 2,618,711 km (0.064 R)
• M6: 3,123,304 km (0.117 R)
• M7: 3,749,222 km (0.107 R)
• M8: 4,521,895 km (0.072 R)
• M9: 4,893,945 km (0.056 R)
• M10: 5,894,605 km (0.106 R)
• M11: 6,256,931 km (0.11 R)
• M12: 7,410,779 km (0.096 R)
• M13: 7,761,886 km (0.065 R)
• M14: 8,074,994 km (0.061 R)
• M15: 8,421,612 km (0.089 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 625.2

Radius: 13.3

Gravity: 3.53 G

Time & Orbit

Eccentricity (e): 0.198

Orbit Range: 2.21 AU - 3.31 AU

Year: 2961 Days

Day: 11.7 Hours

Environment

Temp: -192 °C

Axial Tilt: 13.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 55,248,331 km

• M1: 165,904 km (0.059 R)
• M2: 582,235 km (0.086 R)
• M3: 1,316,461 km (0.102 R)
• M4: 2,212,104 km (0.054 R)
• M5: 2,899,207 km (0.044 R)
• M6: 3,537,092 km (0.106 R)
• M7: 4,267,130 km (0.093 R)
• M8: 4,702,459 km (0.112 R)
• M9: 5,461,070 km (0.083 R)
• M10: 6,327,541 km (0.103 R)
• M11: 7,529,410 km (0.108 R)
• M12: 8,201,404 km (0.096 R)
• M13: 9,665,518 km (0.108 R)
• M14: 10,114,162 km (0.083 R)
• M15: 11,053,637 km (0.117 R)
• M16: 11,503,328 km (0.058 R)
• M17: 12,971,033 km (0.111 R)
• M18: 14,318,760 km (0.084 R)
• M19: 15,604,703 km (0.095 R)
• M20: 16,751,820 km (0.071 R)
• M21: 18,864,441 km (0.117 R)
• M22: 20,226,380 km (0.041 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 854.7

Radius: 13.8

Gravity: 4.49 G

Time & Orbit

Eccentricity (e): 0.115

Orbit Range: 3.4 AU - 4.28 AU

Year: 4859 Days

Day: 6.2 Hours

Environment

Temp: -216 °C

Axial Tilt: 46.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 55,248,331 km

• M1: 171,738 km (0.106 R)
• M2: 809,923 km (0.092 R)
• M3: 1,301,202 km (0.089 R)
• M4: 2,623,947 km (0.051 R)
• M5: 3,081,417 km (0.099 R)
• M6: 3,903,457 km (0.074 R)
• M7: 4,580,537 km (0.036 R)
• M8: 5,194,188 km (0.115 R)
• M9: 6,108,081 km (0.109 R)
• M10: 6,819,718 km (0.089 R)
• M11: 7,953,072 km (0.083 R)
• M12: 8,604,421 km (0.061 R)
• M13: 10,820,264 km (0.114 R)
• M14: 11,669,232 km (0.115 R)
• M15: 12,766,682 km (0.037 R)
• M16: 13,235,073 km (0.081 R)
• M17: 17,280,200 km (0.092 R)
• M18: 19,039,620 km (0.105 R)
• M19: 20,137,220 km (0.082 R)
• M20: 23,996,546 km (0.045 R)
• M21: 25,033,408 km (0.103 R)
• M22: 30,856,805 km (0.088 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.86 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 192.3

Radius: 6.3

Gravity: 4.85 G

Time & Orbit

Eccentricity (e): 0.052

Orbit Range: 6.5 AU - 7.22 AU

Year: 11601 Days

Day: 19 Hours

Environment

Temp: -231 °C

Axial Tilt: 0.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 55,248,331 km

• M1: 78,988 km (0.098 R)
• M2: 290,220 km (0.078 R)
• M3: 538,552 km (0.117 R)
• M4: 1,040,154 km (0.114 R)
• M5: 1,651,411 km (0.082 R)
• M6: 3,104,605 km (0.107 R)
• M7: 4,883,772 km (0.109 R)
• M8: 8,478,759 km (0.07 R)
• M9: 14,605,988 km (0.095 R)
• M10: 18,520,366 km (0.107 R)
• M11: 24,206,132 km (0.114 R)
• M12: 27,441,934 km (0.109 R)
• M13: 33,625,263 km (0.09 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.64 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 390.1

Radius: 7.2

Gravity: 7.53 G

Time & Orbit

Eccentricity (e): 0.207

Orbit Range: 6.85 AU - 10.43 AU

Year: 16398 Days

Day: 21.4 Hours

Environment

Temp: -236 °C

Axial Tilt: 22.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 55,248,331 km

• M1: 89,759 km (0.048 R)
• M2: 324,029 km (0.047 R)
• M3: 1,313,469 km (0.118 R)
• M4: 1,732,792 km (0.044 R)
• M5: 2,641,599 km (0.113 R)
• M6: 3,726,633 km (0.061 R)
• M7: 4,444,553 km (0.096 R)
• M8: 6,421,339 km (0.095 R)
• M9: 7,025,864 km (0.092 R)
• M10: 7,449,525 km (0.108 R)
• M11: 8,025,627 km (0.041 R)
• M12: 8,871,902 km (0.038 R)
• M13: 9,519,212 km (0.055 R)
• M14: 11,885,102 km (0.111 R)
• M15: 13,947,608 km (0.094 R)
• M16: 15,518,834 km (0.052 R)
• M17: 15,875,476 km (0.073 R)
• M18: 16,531,163 km (0.111 R)
• M19: 17,128,956 km (0.035 R)
• M20: 17,741,111 km (0.103 R)
• M21: 18,766,754 km (0.087 R)
• M22: 19,748,116 km (0.079 R)
• M23: 20,763,287 km (0.095 R)
• M24: 25,665,908 km (0.074 R)
• M25: 26,164,668 km (0.11 R)
• M26: 27,079,010 km (0.111 R)
• M27: 27,909,278 km (0.076 R)
• M28: 30,280,404 km (0.076 R)
• M29: 32,899,265 km (0.111 R)
• M30: 33,133,984 km (0.072 R)
• M31: 34,323,885 km (0.044 R)
• M32: 35,789,047 km (0.116 R)
• M33: 36,537,186 km (0.1 R)
• M34: 39,899,547 km (0.045 R)
• M35: 42,206,197 km (0.106 R)
• M36: 42,483,252 km (0.117 R)
• M37: 44,171,314 km (0.083 R)
• M38: 47,981,123 km (0.104 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 238 - 15,085 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit