🌌 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: 0.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 985.3

Radius: 8.5

Gravity: 13.64 G

Time & Orbit

Eccentricity (e): 0.216

Orbit Range: 0.46 AU - 0.72 AU

Year: 302 Days

Day: 7.6 Hours

Environment

Temp: -142 °C

Axial Tilt: 23.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 63,928,013 km

• M1: 105,915 km (0.112 R)
• M2: 387,907 km (0.118 R)
• M3: 841,638 km (0.029 R)
• M4: 1,119,740 km (0.073 R)
• M5: 1,385,875 km (0.105 R)
• M6: 2,164,980 km (0.109 R)
• M7: 2,661,197 km (0.101 R)
• M8: 2,973,108 km (0.091 R)
• M9: 3,411,879 km (0.119 R)
• M10: 3,943,849 km (0.088 R)
• M11: 4,243,344 km (0.03 R)
• M12: 5,188,204 km (0.116 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 552

Radius: 14.3

Gravity: 2.7 G

Time & Orbit

Eccentricity (e): 0.1

Orbit Range: 0.54 AU - 0.66 AU

Year: 310 Days

Day: 12.1 Hours

Environment

Temp: -158 °C

Axial Tilt: 12.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 63,928,013 km

• M1: 177,872 km (0.088 R)
• M2: 627,563 km (0.084 R)
• M3: 1,127,070 km (0.082 R)
• M4: 1,595,611 km (0.066 R)
• M5: 2,220,780 km (0.11 R)
• M6: 3,016,791 km (0.032 R)
• M7: 3,477,103 km (0.052 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 364.6

Radius: 8.5

Gravity: 5.05 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 0.76 AU - 0.96 AU

Year: 532 Days

Day: 14.6 Hours

Environment

Temp: -173 °C

Axial Tilt: 41.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 63,928,013 km

• M1: 105,766 km (0.086 R)
• M2: 477,068 km (0.094 R)
• M3: 787,334 km (0.063 R)
• M4: 1,062,145 km (0.115 R)
• M5: 1,334,712 km (0.119 R)
• M6: 1,938,040 km (0.098 R)
• M7: 2,280,171 km (0.115 R)
• M8: 2,623,498 km (0.108 R)
• M9: 3,739,947 km (0.104 R)
• M10: 5,114,901 km (0.096 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 369

Radius: 10.5

Gravity: 3.35 G

Time & Orbit

Eccentricity (e): 0.003

Orbit Range: 0.95 AU - 0.95 AU

Year: 617 Days

Day: 14.9 Hours

Environment

Temp: -173 °C

Axial Tilt: 38.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 63,928,013 km

• M1: 130,749 km (0.087 R)
• M2: 500,854 km (0.089 R)
• M3: 853,755 km (0.115 R)
• M4: 1,240,615 km (0.054 R)
• M5: 1,752,838 km (0.083 R)
• M6: 2,319,066 km (0.076 R)
• M7: 2,655,961 km (0.085 R)
• M8: 3,194,663 km (0.054 R)
• M9: 3,614,285 km (0.117 R)
• M10: 4,305,576 km (0.102 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 225.4

Radius: 11.3

Gravity: 1.77 G

Time & Orbit

Eccentricity (e): 0.152

Orbit Range: 1.65 AU - 2.23 AU

Year: 1802 Days

Day: 6.9 Hours

Environment

Temp: -191 °C

Axial Tilt: 25.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 63,928,013 km

• M1: 140,772 km (0.096 R)
• M2: 583,282 km (0.073 R)
• M3: 1,336,208 km (0.069 R)
• M4: 1,753,586 km (0.093 R)
• M5: 2,390,424 km (0.107 R)
• M6: 4,159,569 km (0.066 R)
• M7: 4,588,017 km (0.09 R)
• M8: 5,160,079 km (0.054 R)
• M9: 6,183,030 km (0.084 R)
• M10: 6,537,577 km (0.107 R)
• M11: 6,905,737 km (0.091 R)
• M12: 7,263,276 km (0.053 R)
• M13: 7,784,924 km (0.11 R)
• M14: 9,099,590 km (0.096 R)
• M15: 9,735,829 km (0.102 R)
• M16: 10,095,313 km (0.083 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 935.1

Radius: 9.5

Gravity: 10.36 G

Time & Orbit

Eccentricity (e): 0.032

Orbit Range: 2.55 AU - 2.71 AU

Year: 2844 Days

Day: 10 Hours

Environment

Temp: -209 °C

Axial Tilt: 21.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 63,928,013 km

• M1: 118,182 km (0.038 R)
• M2: 506,538 km (0.115 R)
• M3: 874,848 km (0.104 R)
• M4: 1,221,467 km (0.116 R)
• M5: 1,706,463 km (0.075 R)
• M6: 2,216,891 km (0.088 R)
• M7: 2,632,474 km (0.059 R)
• M8: 3,135,123 km (0.076 R)
• M9: 3,485,780 km (0.082 R)
• M10: 4,467,591 km (0.084 R)
• M11: 5,544,396 km (0.085 R)
• M12: 6,430,165 km (0.049 R)
• M13: 6,937,751 km (0.052 R)
• M14: 7,601,367 km (0.112 R)
• M15: 8,032,957 km (0.106 R)
• M16: 10,121,642 km (0.09 R)
• M17: 10,522,265 km (0.101 R)
• M18: 11,355,376 km (0.104 R)
• M19: 15,603,208 km (0.108 R)
• M20: 15,922,749 km (0.077 R)
• M21: 18,759,124 km (0.105 R)
• M22: 19,303,212 km (0.113 R)
• M23: 20,613,689 km (0.098 R)
• M24: 22,115,951 km (0.111 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.43 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 166.6

Radius: 6.9

Gravity: 3.5 G

Time & Orbit

Eccentricity (e): 0.095

Orbit Range: 7.63 AU - 9.23 AU

Year: 16322 Days

Day: 19.4 Hours

Environment

Temp: -226 °C

Axial Tilt: 31 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 63,928,013 km

• M1: 86,318 km (0.115 R)
• M2: 319,242 km (0.031 R)
• M3: 557,252 km (0.119 R)
• M4: 864,825 km (0.116 R)
• M5: 1,493,585 km (0.104 R)
• M6: 2,754,845 km (0.077 R)
• M7: 3,422,799 km (0.075 R)
• M8: 4,141,019 km (0.049 R)
• M9: 4,778,754 km (0.114 R)
• M10: 5,106,075 km (0.051 R)
• M11: 5,384,925 km (0.027 R)
• M12: 5,673,948 km (0.096 R)
• M13: 6,109,577 km (0.089 R)
• M14: 6,786,208 km (0.061 R)
• M15: 7,161,848 km (0.108 R)
• M16: 7,670,780 km (0.057 R)
• M17: 8,804,732 km (0.082 R)
• M18: 9,116,045 km (0.117 R)
• M19: 9,527,140 km (0.039 R)
• M20: 9,808,085 km (0.109 R)
• M21: 11,558,231 km (0.073 R)
• M22: 11,985,632 km (0.075 R)
• M23: 13,624,177 km (0.097 R)
• M24: 13,921,129 km (0.112 R)
• M25: 15,152,020 km (0.108 R)
• M26: 16,387,100 km (0.117 R)
• M27: 17,687,854 km (0.096 R)
• M28: 18,835,419 km (0.099 R)
• M29: 24,706,388 km (0.109 R)
• M30: 27,248,205 km (0.08 R)
• M31: 29,069,110 km (0.119 R)
• M32: 29,959,367 km (0.064 R)
• M33: 32,106,994 km (0.047 R)
• M34: 33,164,950 km (0.106 R)
• M35: 34,027,831 km (0.108 R)
• M36: 39,883,840 km (0.115 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.7 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 298.3

Radius: 3.9

Gravity: 19.61 G

Time & Orbit

Eccentricity (e): 0.158

Orbit Range: 9.01 AU - 12.39 AU

Year: 23340 Days

Day: 24.3 Hours

Environment

Temp: -240 °C

Axial Tilt: 45.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (42)

Outer Limit: 63,928,013 km

• M1: 52,658 km (0.101 R)
• M2: 212,728 km (0.08 R)
• M3: 766,539 km (0.107 R)
• M4: 1,034,619 km (0.112 R)
• M5: 1,527,245 km (0.098 R)
• M6: 2,581,461 km (0.12 R)
• M7: 3,104,006 km (0.084 R)
• M8: 3,417,115 km (0.091 R)
• M9: 3,779,740 km (0.11 R)
• M10: 6,065,745 km (0.059 R)
• M11: 6,638,406 km (0.068 R)
• M12: 7,937,962 km (0.119 R)
• M13: 9,344,930 km (0.086 R)
• M14: 10,560,862 km (0.077 R)
• M15: 11,087,446 km (0.107 R)
• M16: 12,383,712 km (0.045 R)
• M17: 12,706,544 km (0.047 R)
• M18: 13,984,858 km (0.049 R)
• M19: 15,052,837 km (0.079 R)
• M20: 15,794,244 km (0.075 R)
• M21: 17,672,445 km (0.087 R)
• M22: 19,520,278 km (0.114 R)
• M23: 23,300,317 km (0.111 R)
• M24: 24,593,591 km (0.107 R)
• M25: 25,412,789 km (0.068 R)
• M26: 27,105,638 km (0.107 R)
• M27: 28,984,887 km (0.113 R)
• M28: 31,903,691 km (0.064 R)
• M29: 35,527,998 km (0.054 R)
• M30: 36,442,041 km (0.111 R)
• M31: 36,706,082 km (0.053 R)
• M32: 38,045,581 km (0.068 R)
• M33: 42,258,556 km (0.059 R)
• M34: 47,869,523 km (0.11 R)
• M35: 48,186,222 km (0.085 R)
• M36: 48,984,028 km (0.076 R)
• M37: 52,599,359 km (0.028 R)
• M38: 54,990,382 km (0.105 R)
• M39: 59,438,226 km (0.069 R)
• M40: 60,171,405 km (0.109 R)
• M41: 61,843,161 km (0.119 R)
• M42: 63,354,848 km (0.055 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 225 - 16,455 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit