🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.54 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.18

Radius: 1.59

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 0.47 AU - 0.61 AU

Year: 260 Days

Day: 46.9 Hours

Environment

Temp: -131 °C

Axial Tilt: 20.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 52,068,060 km

• M1: 251,773 km (0.112 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 700.2

Radius: 10.5

Gravity: 6.35 G

Time & Orbit

Eccentricity (e): 0.03

Orbit Range: 0.97 AU - 1.03 AU

Year: 656 Days

Day: 9.7 Hours

Environment

Temp: -157 °C

Axial Tilt: 29.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 52,068,060 km

• M1: 130,599 km (0.079 R)
• M2: 518,656 km (0.051 R)
• M3: 937,530 km (0.11 R)
• M4: 1,267,393 km (0.113 R)
• M5: 1,790,537 km (0.074 R)
• M6: 2,689,919 km (0.12 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 345.3

Radius: 12

Gravity: 2.4 G

Time & Orbit

Eccentricity (e): 0.209

Orbit Range: 0.93 AU - 1.41 AU

Year: 830 Days

Day: 5.1 Hours

Environment

Temp: -170 °C

Axial Tilt: 8.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 52,068,060 km

• M1: 149,448 km (0.118 R)
• M2: 542,442 km (0.12 R)
• M3: 1,160,580 km (0.1 R)
• M4: 1,723,816 km (0.116 R)
• M5: 2,230,953 km (0.104 R)
• M6: 2,726,571 km (0.106 R)
• M7: 3,258,391 km (0.104 R)
• M8: 3,886,253 km (0.108 R)
• M9: 4,831,562 km (0.113 R)
• M10: 6,381,396 km (0.104 R)
• M11: 6,944,632 km (0.063 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.29 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 592.9

Radius: 10.5

Gravity: 5.38 G

Time & Orbit

Eccentricity (e): 0.21

Orbit Range: 1.02 AU - 1.56 AU

Year: 961 Days

Day: 14.7 Hours

Environment

Temp: -166 °C

Axial Tilt: 18.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 52,068,060 km

• M1: 130,599 km (0.108 R)
• M2: 772,673 km (0.097 R)
• M3: 1,872,217 km (0.085 R)
• M4: 2,255,487 km (0.105 R)
• M5: 2,848,643 km (0.09 R)
• M6: 3,718,554 km (0.101 R)
• M7: 4,704,105 km (0.033 R)
• M8: 5,754,282 km (0.059 R)
• M9: 6,377,806 km (0.086 R)
• M10: 7,637,570 km (0.091 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 772.1

Radius: 14.1

Gravity: 3.88 G

Time & Orbit

Eccentricity (e): 0.063

Orbit Range: 4.62 AU - 5.24 AU

Year: 7181 Days

Day: 11.5 Hours

Environment

Temp: -218 °C

Axial Tilt: 39.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 52,068,060 km

• M1: 175,478 km (0.078 R)
• M2: 933,491 km (0.115 R)
• M3: 1,384,977 km (0.071 R)
• M4: 1,972,298 km (0.078 R)
• M5: 2,448,169 km (0.115 R)
• M6: 2,960,542 km (0.119 R)
• M7: 3,684,895 km (0.059 R)
• M8: 4,635,140 km (0.067 R)
• M9: 6,004,559 km (0.026 R)
• M10: 7,358,570 km (0.116 R)
• M11: 7,905,799 km (0.107 R)
• M12: 8,480,254 km (0.089 R)
• M13: 9,529,983 km (0.077 R)
• M14: 11,367,045 km (0.071 R)
• M15: 12,864,519 km (0.116 R)
• M16: 13,660,978 km (0.064 R)
• M17: 15,352,332 km (0.093 R)
• M18: 17,383,721 km (0.044 R)
• M19: 20,719,903 km (0.107 R)
• M20: 23,865,199 km (0.106 R)
• M21: 25,951,640 km (0.107 R)
• M22: 28,251,857 km (0.072 R)
• M23: 29,500,251 km (0.093 R)
• M24: 30,684,917 km (0.094 R)
• M25: 37,316,590 km (0.096 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.44 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 82.4

Radius: 9.4

Gravity: 0.93 G

Time & Orbit

Eccentricity (e): 0.231

Orbit Range: 4.18 AU - 6.7 AU

Year: 8324 Days

Day: 12.2 Hours

Environment

Temp: -226 °C

Axial Tilt: 15.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 52,068,060 km

• M1: 195,973 km (0.107 R)
• M2: 858,393 km (0.079 R)
• M3: 2,264,762 km (0.031 R)
• M4: 3,377,172 km (0.043 R)
• M5: 4,569,317 km (0.101 R)
• M6: 5,322,991 km (0.093 R)
• M7: 5,940,831 km (0.059 R)
• M8: 10,035,175 km (0.075 R)
• M9: 13,452,289 km (0.061 R)
• M10: 15,549,203 km (0.113 R)
• M11: 19,177,849 km (0.105 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.28 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 528.8

Radius: 5.8

Gravity: 15.72 G

Time & Orbit

Eccentricity (e): 0.046

Orbit Range: 6.95 AU - 7.61 AU

Year: 12886 Days

Day: 22 Hours

Environment

Temp: -233 °C

Axial Tilt: 8.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 52,068,060 km

• M1: 89,160 km (0.072 R)
• M2: 412,142 km (0.05 R)
• M3: 894,296 km (0.064 R)
• M4: 1,177,186 km (0.119 R)
• M5: 1,448,107 km (0.054 R)
• M6: 1,712,896 km (0.053 R)
• M7: 2,079,859 km (0.101 R)
• M8: 2,902,797 km (0.112 R)
• M9: 3,399,911 km (0.112 R)
• M10: 3,603,514 km (0.111 R)
• M11: 4,235,116 km (0.119 R)
• M12: 5,333,912 km (0.096 R)
• M13: 5,574,465 km (0.037 R)
• M14: 6,848,441 km (0.058 R)
• M15: 7,945,293 km (0.093 R)
• M16: 9,350,914 km (0.081 R)
• M17: 10,008,696 km (0.059 R)
• M18: 10,375,360 km (0.031 R)
• M19: 10,642,841 km (0.1 R)
• M20: 11,303,316 km (0.12 R)
• M21: 11,643,501 km (0.113 R)
• M22: 12,644,910 km (0.107 R)
• M23: 14,616,759 km (0.081 R)
• M24: 15,710,619 km (0.083 R)
• M25: 16,063,371 km (0.085 R)
• M26: 17,227,691 km (0.09 R)
• M27: 22,717,334 km (0.095 R)
• M28: 23,077,716 km (0.102 R)
• M29: 26,794,026 km (0.089 R)
• M30: 28,846,060 km (0.076 R)
• M31: 30,452,143 km (0.067 R)
• M32: 32,343,359 km (0.097 R)
• M33: 32,570,897 km (0.049 R)
• M34: 35,505,858 km (0.091 R)
• M35: 35,748,057 km (0.114 R)
• M36: 36,358,266 km (0.116 R)
• M37: 43,535,374 km (0.084 R)
• M38: 44,511,500 km (0.106 R)
• M39: 49,160,254 km (0.058 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: 261 - 13,635 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit