🌌 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: 3.92

Radius: 1.73

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.007

Orbit Range: 0.55 AU - 0.55 AU

Year: 268 Days

Day: 45 Hours

Environment

Temp: -132 °C

Axial Tilt: 35.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 56,676,612 km

• M1: 95,743 km (0.112 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 494.7

Radius: 14.8

Gravity: 2.26 G

Time & Orbit

Eccentricity (e): 0.103

Orbit Range: 0.76 AU - 0.94 AU

Year: 514 Days

Day: 11.1 Hours

Environment

Temp: -146 °C

Axial Tilt: 25.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 56,676,612 km

• M1: 184,005 km (0.102 R)
• M2: 752,178 km (0.089 R)
• M3: 1,367,325 km (0.088 R)
• M4: 1,893,759 km (0.045 R)
• M5: 2,634,269 km (0.103 R)
• M6: 3,526,471 km (0.06 R)
• M7: 4,191,433 km (0.107 R)
• M8: 4,878,536 km (0.096 R)
• M9: 5,673,649 km (0.103 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 403.4

Radius: 10.7

Gravity: 3.52 G

Time & Orbit

Eccentricity (e): 0.063

Orbit Range: 0.86 AU - 0.98 AU

Year: 579 Days

Day: 9.9 Hours

Environment

Temp: -151 °C

Axial Tilt: 29.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 56,676,612 km

• M1: 132,993 km (0.095 R)
• M2: 479,162 km (0.112 R)
• M3: 993,629 km (0.098 R)
• M4: 1,334,413 km (0.039 R)
• M5: 2,327,444 km (0.093 R)
• M6: 2,977,147 km (0.045 R)
• M7: 3,446,436 km (0.104 R)
• M8: 3,859,625 km (0.055 R)
• M9: 4,696,326 km (0.116 R)
• M10: 5,465,857 km (0.098 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 320.4

Radius: 10.5

Gravity: 2.91 G

Time & Orbit

Eccentricity (e): 0.075

Orbit Range: 1.05 AU - 1.23 AU

Year: 798 Days

Day: 5.9 Hours

Environment

Temp: -166 °C

Axial Tilt: 35.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 56,676,612 km

• M1: 130,749 km (0.064 R)
• M2: 467,942 km (0.102 R)
• M3: 1,132,605 km (0.077 R)
• M4: 2,573,682 km (0.083 R)
• M5: 2,940,795 km (0.11 R)
• M6: 3,849,004 km (0.082 R)
• M7: 4,200,110 km (0.041 R)
• M8: 4,870,308 km (0.101 R)

Asteroid Belt

Center: 2.14 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 5 - Gas Giant

Semi-Major Axis: 3.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 661.2

Radius: 10.2

Gravity: 6.36 G

Time & Orbit

Eccentricity (e): 0.217

Orbit Range: 2.45 AU - 3.81 AU

Year: 3633 Days

Day: 14.1 Hours

Environment

Temp: -194 °C

Axial Tilt: 9.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 56,676,612 km

• M1: 130,599 km (0.081 R)
• M2: 563,236 km (0.088 R)
• M3: 1,004,699 km (0.108 R)
• M4: 1,474,736 km (0.056 R)
• M5: 2,538,975 km (0.067 R)
• M6: 3,698,508 km (0.068 R)
• M7: 4,499,904 km (0.079 R)
• M8: 5,360,840 km (0.119 R)
• M9: 6,068,737 km (0.113 R)
• M10: 6,534,435 km (0.089 R)
• M11: 8,042,232 km (0.098 R)
• M12: 8,822,684 km (0.067 R)
• M13: 9,848,477 km (0.115 R)
• M14: 10,329,135 km (0.112 R)
• M15: 12,090,350 km (0.105 R)
• M16: 13,257,962 km (0.064 R)
• M17: 15,174,310 km (0.08 R)
• M18: 16,587,562 km (0.077 R)
• M19: 16,982,500 km (0.107 R)
• M20: 19,361,704 km (0.113 R)
• M21: 21,153,887 km (0.045 R)
• M22: 21,752,727 km (0.052 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.46 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 520.1

Radius: 12.9

Gravity: 3.13 G

Time & Orbit

Eccentricity (e): 0.005

Orbit Range: 3.44 AU - 3.48 AU

Year: 4222 Days

Day: 10.1 Hours

Environment

Temp: -210 °C

Axial Tilt: 32.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 56,676,612 km

• M1: 160,818 km (0.109 R)
• M2: 895,942 km (0.104 R)
• M3: 1,920,537 km (0.063 R)
• M4: 2,418,250 km (0.079 R)
• M5: 3,925,448 km (0.108 R)
• M6: 6,813,136 km (0.066 R)
• M7: 7,950,379 km (0.044 R)
• M8: 10,270,193 km (0.114 R)
• M9: 10,893,268 km (0.041 R)
• M10: 14,241,717 km (0.099 R)
• M11: 15,766,120 km (0.102 R)
• M12: 18,403,380 km (0.038 R)
• M13: 19,013,441 km (0.076 R)
• M14: 21,522,795 km (0.107 R)
• M15: 23,884,048 km (0.102 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 43.5

Radius: 12.9

Gravity: 0.26 G

Time & Orbit

Eccentricity (e): 0.197

Orbit Range: 3.07 AU - 4.57 AU

Year: 4898 Days

Day: 9.8 Hours

Environment

Temp: -205 °C

Axial Tilt: 18.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 56,676,612 km

• M1: 166,054 km (0.101 R)
• M2: 601,084 km (0.113 R)
• M3: 1,138,589 km (0.072 R)
• M4: 1,935,348 km (0.086 R)
• M5: 2,507,111 km (0.106 R)
• M6: 3,638,819 km (0.114 R)
• M7: 4,871,954 km (0.07 R)
• M8: 5,367,272 km (0.074 R)
• M9: 5,917,942 km (0.117 R)
• M10: 7,009,259 km (0.028 R)
• M11: 8,368,505 km (0.075 R)
• M12: 8,906,608 km (0.105 R)
• M13: 10,958,343 km (0.115 R)
• M14: 11,812,098 km (0.111 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.41 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 999.1

Radius: 4.7

Gravity: 45.23 G

Time & Orbit

Eccentricity (e): 0.136

Orbit Range: 5.54 AU - 7.28 AU

Year: 10646 Days

Day: 23.4 Hours

Environment

Temp: -217 °C

Axial Tilt: 31.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 56,676,612 km

• M1: 59,241 km (0.093 R)
• M2: 257,308 km (0.095 R)
• M3: 434,731 km (0.029 R)
• M4: 636,988 km (0.113 R)
• M5: 821,741 km (0.03 R)
• M6: 1,696,739 km (0.075 R)
• M7: 2,996,595 km (0.062 R)
• M8: 3,627,898 km (0.036 R)
• M9: 4,947,501 km (0.09 R)
• M10: 5,899,242 km (0.045 R)
• M11: 6,241,971 km (0.111 R)
• M12: 6,438,094 km (0.083 R)
• M13: 6,967,222 km (0.068 R)
• M14: 7,263,874 km (0.053 R)
• M15: 7,524,773 km (0.114 R)
• M16: 7,791,955 km (0.115 R)
• M17: 8,825,975 km (0.096 R)
• M18: 9,737,475 km (0.111 R)
• M19: 10,216,039 km (0.101 R)
• M20: 13,421,921 km (0.081 R)
• M21: 13,683,119 km (0.073 R)
• M22: 15,110,283 km (0.109 R)
• M23: 17,704,459 km (0.105 R)
• M24: 18,097,602 km (0.028 R)
• M25: 19,897,564 km (0.079 R)
• M26: 20,840,779 km (0.094 R)
• M27: 22,356,504 km (0.081 R)
• M28: 30,147,711 km (0.118 R)
• M29: 31,047,991 km (0.1 R)
• M30: 36,957,256 km (0.1 R)
• M31: 44,434,457 km (0.118 R)
• M32: 45,306,463 km (0.119 R)
• M33: 47,687,463 km (0.072 R)
• M34: 48,754,844 km (0.085 R)
• M35: 52,859,061 km (0.115 R)
• M36: 55,328,623 km (0.091 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: 507 - 15,503 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit