🌌 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: 0.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 245.1

Radius: 13.3

Gravity: 1.39 G

Time & Orbit

Eccentricity (e): 0.129

Orbit Range: 0.52 AU - 0.68 AU

Year: 310 Days

Day: 9.8 Hours

Environment

Temp: -160 °C

Axial Tilt: 35.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 45,520,351 km

• M1: 165,455 km (0.076 R)
• M2: 593,904 km (0.106 R)
• M3: 1,246,300 km (0.082 R)
• M4: 2,118,904 km (0.11 R)
• M5: 2,570,839 km (0.048 R)
• M6: 3,025,019 km (0.105 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 507.5

Radius: 9.6

Gravity: 5.51 G

Time & Orbit

Eccentricity (e): 0.184

Orbit Range: 0.51 AU - 0.73 AU

Year: 326 Days

Day: 15 Hours

Environment

Temp: -161 °C

Axial Tilt: 21 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 45,520,351 km

• M1: 120,127 km (0.08 R)
• M2: 422,464 km (0.118 R)
• M3: 831,315 km (0.041 R)
• M4: 1,205,609 km (0.104 R)
• M5: 1,834,818 km (0.063 R)
• M6: 2,248,905 km (0.092 R)
• M7: 2,597,468 km (0.117 R)
• M8: 3,298,035 km (0.065 R)
• M9: 3,878,774 km (0.08 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 268.2

Radius: 14.2

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.063

Orbit Range: 0.79 AU - 0.89 AU

Year: 513 Days

Day: 11.6 Hours

Environment

Temp: -161 °C

Axial Tilt: 15.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 45,520,351 km

• M1: 176,675 km (0.08 R)
• M2: 792,121 km (0.028 R)
• M3: 1,332,468 km (0.072 R)
• M4: 1,933,253 km (0.054 R)
• M5: 2,495,292 km (0.082 R)
• M6: 3,063,166 km (0.102 R)
• M7: 4,331,756 km (0.046 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 872.2

Radius: 9.1

Gravity: 10.53 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 1.02 AU - 1.1 AU

Year: 728 Days

Day: 7.7 Hours

Environment

Temp: -174 °C

Axial Tilt: 32.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 45,520,351 km

• M1: 114,293 km (0.099 R)
• M2: 403,465 km (0.064 R)
• M3: 890,706 km (0.062 R)
• M4: 1,264,850 km (0.08 R)
• M5: 1,609,224 km (0.099 R)
• M6: 2,153,013 km (0.106 R)
• M7: 2,512,795 km (0.11 R)
• M8: 2,863,453 km (0.118 R)
• M9: 4,439,167 km (0.106 R)
• M10: 4,778,306 km (0.066 R)
• M11: 5,226,501 km (0.1 R)
• M12: 5,566,537 km (0.083 R)
• M13: 7,926,742 km (0.098 R)
• M14: 8,478,609 km (0.089 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.24 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 190.7

Radius: 11

Gravity: 1.58 G

Time & Orbit

Eccentricity (e): 0.186

Orbit Range: 1.82 AU - 2.66 AU

Year: 2236 Days

Day: 6.5 Hours

Environment

Temp: -203 °C

Axial Tilt: 97.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 45,520,351 km

• M1: 165,455 km (0.118 R)
• M2: 646,412 km (0.115 R)
• M3: 1,444,517 km (0.117 R)
• M4: 1,930,710 km (0.102 R)
• M5: 2,799,575 km (0.052 R)
• M6: 5,197,180 km (0.075 R)
• M7: 6,123,938 km (0.109 R)
• M8: 8,978,864 km (0.075 R)
• M9: 10,310,584 km (0.114 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 604.7

Radius: 11.8

Gravity: 4.34 G

Time & Orbit

Eccentricity (e): 0.06

Orbit Range: 2.26 AU - 2.54 AU

Year: 2479 Days

Day: 10 Hours

Environment

Temp: -206 °C

Axial Tilt: 19.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 45,520,351 km

• M1: 146,756 km (0.077 R)
• M2: 979,567 km (0.042 R)
• M3: 1,424,022 km (0.111 R)
• M4: 2,213,001 km (0.118 R)
• M5: 2,707,123 km (0.106 R)
• M6: 3,695,367 km (0.033 R)
• M7: 4,132,940 km (0.117 R)
• M8: 4,520,399 km (0.107 R)
• M9: 4,909,952 km (0.052 R)
• M10: 5,633,706 km (0.079 R)
• M11: 6,320,959 km (0.12 R)
• M12: 7,955,465 km (0.094 R)
• M13: 8,590,807 km (0.076 R)
• M14: 9,607,175 km (0.116 R)
• M15: 10,217,684 km (0.08 R)
• M16: 10,815,776 km (0.065 R)
• M17: 11,437,206 km (0.09 R)
• M18: 12,205,840 km (0.092 R)
• M19: 12,666,302 km (0.116 R)
• M20: 14,955,150 km (0.1 R)
• M21: 15,434,312 km (0.114 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.54 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 59

Radius: 3

Gravity: 6.56 G

Time & Orbit

Eccentricity (e): 0.136

Orbit Range: 5.65 AU - 7.43 AU

Year: 11153 Days

Day: 16.2 Hours

Environment

Temp: -234 °C

Axial Tilt: 11.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 45,520,351 km

• M1: 38,596 km (0.07 R)
• M2: 150,944 km (0.094 R)
• M3: 292,763 km (0.054 R)
• M4: 754,572 km (0.083 R)
• M5: 930,648 km (0.084 R)
• M6: 1,375,253 km (0.082 R)
• M7: 3,517,794 km (0.075 R)
• M8: 4,158,522 km (0.107 R)
• M9: 15,791,701 km (0.106 R)
• M10: 19,462,833 km (0.071 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.78 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 630.9

Radius: 4.5

Gravity: 31.16 G

Time & Orbit

Eccentricity (e): 0.226

Orbit Range: 6.02 AU - 9.54 AU

Year: 14471 Days

Day: 19.5 Hours

Environment

Temp: -233 °C

Axial Tilt: 4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 45,520,351 km

• M1: 55,950 km (0.049 R)
• M2: 295,605 km (0.094 R)
• M3: 632,051 km (0.114 R)
• M4: 2,064,750 km (0.073 R)
• M5: 3,701,799 km (0.103 R)
• M6: 3,986,634 km (0.09 R)
• M7: 5,064,786 km (0.093 R)
• M8: 5,451,795 km (0.104 R)
• M9: 5,634,005 km (0.092 R)
• M10: 6,940,892 km (0.105 R)
• M11: 9,705,461 km (0.1 R)
• M12: 10,580,459 km (0.108 R)
• M13: 11,867,898 km (0.116 R)
• M14: 12,423,355 km (0.115 R)
• M15: 12,867,362 km (0.062 R)
• M16: 13,190,792 km (0.089 R)
• M17: 17,506,990 km (0.116 R)
• M18: 26,326,532 km (0.045 R)
• M19: 28,018,634 km (0.081 R)
• M20: 40,678,204 km (0.09 R)
• M21: 42,934,439 km (0.073 R)
• M22: 43,366,628 km (0.082 R)
• M23: 44,093,224 km (0.094 R)
• M24: 46,321,933 km (0.051 R)
• M25: 52,794,585 km (0.115 R)
• M26: 54,291,760 km (0.108 R)
• M27: 56,159,938 km (0.038 R)
• M28: 56,849,734 km (0.069 R)
• M29: 57,022,968 km (0.042 R)
• M30: 58,070,453 km (0.097 R)
• M31: 59,486,845 km (0.079 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.08 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 250.1

Radius: 6.5

Gravity: 5.92 G

Time & Orbit

Eccentricity (e): 0.076

Orbit Range: 7.47 AU - 8.69 AU

Year: 15316 Days

Day: 23.4 Hours

Environment

Temp: -222 °C

Axial Tilt: 17.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 45,520,351 km

• M1: 80,932 km (0.073 R)
• M2: 478,115 km (0.111 R)
• M3: 724,802 km (0.118 R)
• M4: 1,370,017 km (0.077 R)
• M5: 2,694,108 km (0.026 R)
• M6: 2,988,965 km (0.107 R)
• M7: 3,520,038 km (0.104 R)
• M8: 4,085,069 km (0.043 R)
• M9: 5,232,784 km (0.101 R)
• M10: 5,592,118 km (0.086 R)
• M11: 6,469,958 km (0.065 R)
• M12: 7,039,029 km (0.102 R)
• M13: 9,084,929 km (0.12 R)
• M14: 9,508,441 km (0.109 R)
• M15: 16,690,186 km (0.057 R)
• M16: 19,870,636 km (0.084 R)
• M17: 24,679,161 km (0.12 R)
• M18: 26,062,492 km (0.086 R)
• M19: 26,916,995 km (0.044 R)
• M20: 27,691,912 km (0.109 R)
• M21: 29,489,929 km (0.028 R)
• M22: 32,985,882 km (0.071 R)
• M23: 35,118,998 km (0.039 R)
• M24: 40,282,817 km (0.059 R)
• M25: 43,242,162 km (0.097 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 388 - 11,783 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit