🌌 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: 3.08

Radius: 1.57

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.157

Orbit Range: 0.46 AU - 0.62 AU

Year: 252 Days

Day: 29.6 Hours

Environment

Temp: -114 °C

Axial Tilt: 13.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 56,349,627 km

• M1: 43,234 km (0.116 R)
• M2: 117,135 km (0.11 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 842.7

Radius: 12.3

Gravity: 5.57 G

Time & Orbit

Eccentricity (e): 0.107

Orbit Range: 0.77 AU - 0.95 AU

Year: 507 Days

Day: 12.4 Hours

Environment

Temp: -160 °C

Axial Tilt: 21.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 56,349,627 km

• M1: 153,039 km (0.049 R)
• M2: 574,007 km (0.067 R)
• M3: 1,055,413 km (0.088 R)
• M4: 1,785,600 km (0.107 R)
• M5: 2,168,122 km (0.112 R)
• M6: 2,648,032 km (0.113 R)
• M7: 3,344,709 km (0.091 R)
• M8: 3,784,078 km (0.079 R)
• M9: 4,291,365 km (0.118 R)
• M10: 5,255,074 km (0.112 R)
• M11: 5,707,608 km (0.116 R)
• M12: 6,091,924 km (0.119 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.45 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 825.2

Radius: 14.5

Gravity: 3.92 G

Time & Orbit

Eccentricity (e): 0.036

Orbit Range: 1.4 AU - 1.5 AU

Year: 1110 Days

Day: 13.2 Hours

Environment

Temp: -168 °C

Axial Tilt: 2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 56,349,627 km

• M1: 180,565 km (0.038 R)
• M2: 842,386 km (0.091 R)
• M3: 1,377,048 km (0.071 R)
• M4: 2,017,178 km (0.066 R)
• M5: 2,550,793 km (0.106 R)
• M6: 3,122,706 km (0.075 R)
• M7: 3,653,778 km (0.113 R)
• M8: 5,517,768 km (0.094 R)
• M9: 6,599,959 km (0.112 R)
• M10: 7,430,975 km (0.044 R)
• M11: 10,189,410 km (0.117 R)
• M12: 11,780,982 km (0.08 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 60.1

Radius: 10.4

Gravity: 0.56 G

Time & Orbit

Eccentricity (e): 0.028

Orbit Range: 2.34 AU - 2.48 AU

Year: 2379 Days

Day: 12.7 Hours

Environment

Temp: -203 °C

Axial Tilt: 42.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 56,349,627 km

• M1: 131,497 km (0.116 R)
• M2: 530,474 km (0.094 R)
• M3: 949,049 km (0.065 R)
• M4: 1,439,281 km (0.043 R)
• M5: 2,038,121 km (0.111 R)
• M6: 2,830,990 km (0.026 R)
• M7: 3,648,243 km (0.109 R)
• M8: 4,327,567 km (0.096 R)
• M9: 5,539,160 km (0.109 R)

Planet 5 - Ice Giant

Semi-Major Axis: 6.42 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 89.7

Radius: 4.1

Gravity: 5.34 G

Time & Orbit

Eccentricity (e): 0.151

Orbit Range: 5.45 AU - 7.39 AU

Year: 10343 Days

Day: 21.7 Hours

Environment

Temp: -232 °C

Axial Tilt: 33.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 56,349,627 km

• M1: 51,013 km (0.1 R)
• M2: 258,804 km (0.059 R)
• M3: 434,582 km (0.098 R)
• M4: 590,463 km (0.117 R)
• M5: 1,852,321 km (0.116 R)
• M6: 2,299,768 km (0.037 R)
• M7: 2,991,658 km (0.104 R)
• M8: 3,464,088 km (0.098 R)
• M9: 5,153,198 km (0.086 R)
• M10: 6,532,939 km (0.097 R)
• M11: 7,032,147 km (0.08 R)
• M12: 7,725,384 km (0.066 R)
• M13: 8,645,261 km (0.109 R)
• M14: 9,794,921 km (0.094 R)
• M15: 11,260,531 km (0.068 R)
• M16: 11,749,716 km (0.081 R)
• M17: 16,466,537 km (0.071 R)
• M18: 17,038,449 km (0.06 R)
• M19: 18,464,865 km (0.116 R)
• M20: 21,283,439 km (0.099 R)
• M21: 24,893,834 km (0.096 R)

Planet 6 - Ice Giant

Semi-Major Axis: 8.09 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 884.8

Radius: 3.8

Gravity: 61.27 G

Time & Orbit

Eccentricity (e): 0.161

Orbit Range: 6.79 AU - 9.39 AU

Year: 14630 Days

Day: 22.4 Hours

Environment

Temp: -217 °C

Axial Tilt: 2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 56,349,627 km

• M1: 47,273 km (0.071 R)
• M2: 220,058 km (0.113 R)
• M3: 349,311 km (0.118 R)
• M4: 561,291 km (0.088 R)
• M5: 942,167 km (0.072 R)
• M6: 1,175,091 km (0.118 R)
• M7: 1,703,920 km (0.069 R)
• M8: 2,507,410 km (0.119 R)
• M9: 2,807,952 km (0.114 R)
• M10: 3,080,519 km (0.099 R)
• M11: 3,236,400 km (0.03 R)
• M12: 6,850,386 km (0.093 R)
• M13: 7,812,150 km (0.093 R)
• M14: 10,574,625 km (0.057 R)
• M15: 11,853,537 km (0.073 R)
• M16: 12,108,452 km (0.094 R)
• M17: 15,082,757 km (0.093 R)
• M18: 16,147,295 km (0.096 R)
• M19: 16,777,551 km (0.106 R)
• M20: 17,179,670 km (0.081 R)
• M21: 18,852,772 km (0.091 R)
• M22: 19,199,840 km (0.073 R)
• M23: 20,999,951 km (0.082 R)
• M24: 21,940,772 km (0.053 R)
• M25: 22,713,445 km (0.109 R)
• M26: 22,909,418 km (0.119 R)
• M27: 28,636,623 km (0.118 R)
• M28: 31,950,515 km (0.088 R)
• M29: 36,173,513 km (0.105 R)
• M30: 36,979,247 km (0.095 R)
• M31: 44,012,591 km (0.06 R)
• M32: 50,375,138 km (0.111 R)
• M33: 53,427,832 km (0.114 R)
• M34: 54,122,565 km (0.112 R)
• M35: 56,242,965 km (0.067 R)
• M36: 60,272,982 km (0.118 R)
• M37: 64,687,316 km (0.1 R)

Planet 7 - Ice Giant

Semi-Major Axis: 10.21 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 719

Radius: 3.9

Gravity: 47.27 G

Time & Orbit

Eccentricity (e): 0.232

Orbit Range: 7.84 AU - 12.58 AU

Year: 20743 Days

Day: 18.9 Hours

Environment

Temp: -235 °C

Axial Tilt: 1.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 56,349,627 km

• M1: 48,619 km (0.098 R)
• M2: 218,413 km (0.058 R)
• M3: 487,539 km (0.091 R)
• M4: 644,767 km (0.1 R)
• M5: 846,425 km (0.047 R)
• M6: 1,572,722 km (0.112 R)
• M7: 2,102,000 km (0.111 R)
• M8: 2,407,479 km (0.095 R)
• M9: 3,133,327 km (0.096 R)
• M10: 3,835,989 km (0.081 R)
• M11: 4,190,835 km (0.111 R)
• M12: 4,532,067 km (0.107 R)
• M13: 4,673,587 km (0.103 R)
• M14: 5,466,007 km (0.042 R)
• M15: 7,216,003 km (0.116 R)
• M16: 7,958,607 km (0.046 R)
• M17: 8,427,895 km (0.111 R)
• M18: 10,676,202 km (0.094 R)
• M19: 11,246,469 km (0.071 R)
• M20: 11,637,817 km (0.1 R)
• M21: 13,879,840 km (0.108 R)
• M22: 15,900,907 km (0.119 R)
• M23: 17,323,433 km (0.056 R)
• M24: 19,287,504 km (0.095 R)
• M25: 21,394,889 km (0.055 R)
• M26: 23,124,988 km (0.08 R)
• M27: 25,722,755 km (0.095 R)
• M28: 32,658,262 km (0.114 R)
• M29: 33,587,415 km (0.119 R)
• M30: 37,480,251 km (0.092 R)
• M31: 41,047,711 km (0.102 R)
• M32: 44,349,186 km (0.086 R)
• M33: 44,510,602 km (0.106 R)
• M34: 57,388,436 km (0.08 R)
• M35: 70,103,956 km (0.109 R)
• M36: 70,542,726 km (0.115 R)

Planet 8 - Ice Giant

Semi-Major Axis: 11.29 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 191.3

Radius: 5

Gravity: 7.65 G

Time & Orbit

Eccentricity (e): 0.201

Orbit Range: 9.02 AU - 13.56 AU

Year: 24120 Days

Day: 24.9 Hours

Environment

Temp: -224 °C

Axial Tilt: 109.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 56,349,627 km

• M1: 62,382 km (0.052 R)
• M2: 244,593 km (0.062 R)
• M3: 801,994 km (0.117 R)
• M4: 1,006,494 km (0.119 R)
• M5: 1,297,762 km (0.117 R)
• M6: 2,197,294 km (0.065 R)
• M7: 2,821,865 km (0.102 R)
• M8: 4,506,337 km (0.113 R)
• M9: 8,160,713 km (0.119 R)
• M10: 8,537,251 km (0.111 R)
• M11: 10,322,552 km (0.072 R)
• M12: 11,215,801 km (0.101 R)
• M13: 21,423,462 km (0.06 R)
• M14: 29,315,797 km (0.116 R)
• M15: 35,120,045 km (0.107 R)
• M16: 36,240,084 km (0.074 R)
• M17: 39,609,477 km (0.119 R)
• M18: 42,060,638 km (0.12 R)
• M19: 45,337,430 km (0.09 R)
• M20: 48,627,087 km (0.063 R)
• M21: 50,486,738 km (0.106 R)
• M22: 53,527,465 km (0.067 R)
• M23: 53,690,825 km (0.111 R)
• M24: 54,512,566 km (0.114 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 241 - 11,134 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit