🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.62 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.89

Radius: 1.29

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.043

Orbit Range: 0.59 AU - 0.65 AU

Year: 315 Days

Day: 36.5 Hours

Environment

Temp: -136 °C

Axial Tilt: 29.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 260.6

Radius: 8.4

Gravity: 3.69 G

Time & Orbit

Eccentricity (e): 0.165

Orbit Range: 0.72 AU - 1 AU

Year: 515 Days

Day: 7 Hours

Environment

Temp: -142 °C

Axial Tilt: 44.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 71,816,697 km

• M1: 104,419 km (0.071 R)
• M2: 463,005 km (0.067 R)
• M3: 765,792 km (0.107 R)
• M4: 1,171,950 km (0.12 R)
• M5: 2,088,536 km (0.09 R)
• M6: 2,530,448 km (0.119 R)
• M7: 2,891,876 km (0.109 R)
• M8: 3,298,483 km (0.073 R)
• M9: 3,590,349 km (0.084 R)
• M10: 3,960,903 km (0.117 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 833.6

Radius: 10.9

Gravity: 7.02 G

Time & Orbit

Eccentricity (e): 0.123

Orbit Range: 1.23 AU - 1.57 AU

Year: 1070 Days

Day: 10.1 Hours

Environment

Temp: -170 °C

Axial Tilt: 2.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 71,816,697 km

• M1: 135,984 km (0.105 R)
• M2: 545,135 km (0.047 R)
• M3: 903,870 km (0.119 R)
• M4: 1,273,975 km (0.036 R)
• M5: 1,692,102 km (0.111 R)
• M6: 2,041,861 km (0.114 R)
• M7: 2,773,245 km (0.096 R)
• M8: 3,814,297 km (0.08 R)
• M9: 4,179,615 km (0.103 R)
• M10: 4,586,820 km (0.107 R)
• M11: 5,078,848 km (0.112 R)
• M12: 5,839,702 km (0.093 R)
• M13: 6,191,407 km (0.099 R)
• M14: 6,580,810 km (0.082 R)
• M15: 7,901,161 km (0.097 R)
• M16: 9,271,926 km (0.064 R)
• M17: 10,567,893 km (0.095 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 196.1

Radius: 13.2

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.246

Orbit Range: 1.2 AU - 1.98 AU

Year: 1295 Days

Day: 11.6 Hours

Environment

Temp: -178 °C

Axial Tilt: 37.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 71,816,697 km

• M1: 164,258 km (0.056 R)
• M2: 730,187 km (0.091 R)
• M3: 1,329,925 km (0.082 R)
• M4: 1,815,669 km (0.117 R)
• M5: 2,578,319 km (0.063 R)
• M6: 3,194,812 km (0.101 R)
• M7: 4,083,872 km (0.105 R)
• M8: 4,611,354 km (0.079 R)
• M9: 5,433,694 km (0.032 R)
• M10: 6,271,292 km (0.049 R)
• M11: 7,040,674 km (0.06 R)
• M12: 7,779,239 km (0.106 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 468.1

Radius: 12.4

Gravity: 3.04 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 2.38 AU - 3.84 AU

Year: 3541 Days

Day: 12.6 Hours

Environment

Temp: -194 °C

Axial Tilt: 23.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 71,816,697 km

• M1: 154,385 km (0.09 R)
• M2: 540,198 km (0.092 R)
• M3: 978,819 km (0.048 R)
• M4: 1,427,612 km (0.116 R)
• M5: 1,893,011 km (0.109 R)
• M6: 2,503,371 km (0.117 R)
• M7: 3,682,651 km (0.092 R)
• M8: 4,332,654 km (0.048 R)
• M9: 4,799,848 km (0.093 R)
• M10: 7,442,644 km (0.063 R)
• M11: 9,919,386 km (0.069 R)
• M12: 11,636,620 km (0.037 R)
• M13: 13,220,263 km (0.103 R)
• M14: 14,112,016 km (0.103 R)
• M15: 17,634,148 km (0.103 R)
• M16: 19,478,840 km (0.067 R)
• M17: 20,325,115 km (0.106 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 325.3

Radius: 13

Gravity: 1.92 G

Time & Orbit

Eccentricity (e): 0.041

Orbit Range: 4.56 AU - 4.96 AU

Year: 6705 Days

Day: 14.4 Hours

Environment

Temp: -215 °C

Axial Tilt: 9.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 71,816,697 km

• M1: 164,408 km (0.104 R)
• M2: 1,331,421 km (0.114 R)
• M3: 1,774,680 km (0.055 R)
• M4: 2,638,308 km (0.069 R)
• M5: 3,044,466 km (0.094 R)
• M6: 3,637,921 km (0.114 R)
• M7: 4,849,813 km (0.109 R)
• M8: 8,130,495 km (0.072 R)
• M9: 11,705,585 km (0.112 R)
• M10: 19,509,058 km (0.044 R)
• M11: 24,974,018 km (0.097 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.97 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 765.7

Radius: 3.1

Gravity: 79.68 G

Time & Orbit

Eccentricity (e): 0.25

Orbit Range: 6.73 AU - 11.21 AU

Year: 17346 Days

Day: 15.4 Hours

Environment

Temp: -236 °C

Axial Tilt: 1.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (40)

Outer Limit: 71,816,697 km

• M1: 42,785 km (0.1 R)
• M2: 276,008 km (0.105 R)
• M3: 742,005 km (0.114 R)
• M4: 1,055,862 km (0.041 R)
• M5: 1,242,859 km (0.115 R)
• M6: 2,218,536 km (0.09 R)
• M7: 2,525,362 km (0.111 R)
• M8: 2,834,880 km (0.088 R)
• M9: 3,733,664 km (0.116 R)
• M10: 3,946,093 km (0.063 R)
• M11: 4,263,689 km (0.104 R)
• M12: 4,362,274 km (0.114 R)
• M13: 4,529,824 km (0.066 R)
• M14: 6,236,586 km (0.076 R)
• M15: 6,622,997 km (0.111 R)
• M16: 7,162,746 km (0.038 R)
• M17: 8,227,284 km (0.092 R)
• M18: 9,728,948 km (0.056 R)
• M19: 10,189,410 km (0.116 R)
• M20: 10,365,786 km (0.049 R)
• M21: 11,278,333 km (0.055 R)
• M22: 16,653,385 km (0.098 R)
• M23: 16,816,297 km (0.042 R)
• M24: 17,228,140 km (0.099 R)
• M25: 17,562,491 km (0.052 R)
• M26: 18,504,209 km (0.085 R)
• M27: 18,678,940 km (0.086 R)
• M28: 19,120,553 km (0.1 R)
• M29: 26,941,380 km (0.043 R)
• M30: 28,076,379 km (0.12 R)
• M31: 30,441,222 km (0.101 R)
• M32: 31,547,498 km (0.084 R)
• M33: 35,697,493 km (0.086 R)
• M34: 41,676,620 km (0.099 R)
• M35: 42,127,508 km (0.085 R)
• M36: 46,655,686 km (0.053 R)
• M37: 52,190,658 km (0.025 R)
• M38: 55,567,680 km (0.097 R)
• M39: 68,010,034 km (0.114 R)
• M40: 69,053,629 km (0.116 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 510 - 15,720 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit