🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.52 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 1.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 368.2

Radius: 11.3

Gravity: 2.88 G

Time & Orbit

Eccentricity (e): 0.164

Orbit Range: 0.87 AU - 1.21 AU

Year: 707 Days

Day: 12.7 Hours

Environment

Temp: -187 °C

Axial Tilt: 8.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 46,217,355 km

• M1: 140,472 km (0.101 R)
• M2: 564,433 km (0.103 R)
• M3: 941,569 km (0.051 R)
• M4: 1,400,386 km (0.042 R)
• M5: 2,024,957 km (0.063 R)
• M6: 2,626,939 km (0.088 R)
• M7: 3,272,753 km (0.116 R)
• M8: 3,911,835 km (0.06 R)
• M9: 4,802,540 km (0.078 R)
• M10: 5,542,601 km (0.094 R)
• M11: 5,985,710 km (0.088 R)
• M12: 6,548,497 km (0.103 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.48 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 235

Radius: 13

Gravity: 1.39 G

Time & Orbit

Eccentricity (e): 0.162

Orbit Range: 1.24 AU - 1.72 AU

Year: 1201 Days

Day: 9 Hours

Environment

Temp: -182 °C

Axial Tilt: 109.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 46,217,355 km

• M1: 161,715 km (0.07 R)
• M2: 647,609 km (0.044 R)
• M3: 1,058,106 km (0.108 R)
• M4: 1,464,713 km (0.118 R)
• M5: 1,943,127 km (0.117 R)
• M6: 2,452,657 km (0.114 R)
• M7: 3,051,049 km (0.106 R)
• M8: 3,552,201 km (0.096 R)
• M9: 4,889,307 km (0.077 R)
• M10: 6,917,106 km (0.04 R)
• M11: 7,332,839 km (0.109 R)
• M12: 7,765,177 km (0.085 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 18.2

Radius: 13.6

Gravity: 0.1 G

Time & Orbit

Eccentricity (e): 0.126

Orbit Range: 2.05 AU - 2.65 AU

Year: 2402 Days

Day: 10.9 Hours

Environment

Temp: -204 °C

Axial Tilt: 36.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 46,217,355 km

• M1: 193,580 km (0.038 R)
• M2: 1,861,297 km (0.097 R)
• M3: 2,820,967 km (0.098 R)
• M4: 4,140,719 km (0.054 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.42 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 681.6

Radius: 10.2

Gravity: 6.55 G

Time & Orbit

Eccentricity (e): 0.245

Orbit Range: 1.83 AU - 3.01 AU

Year: 2510 Days

Day: 10.4 Hours

Environment

Temp: -198 °C

Axial Tilt: 17.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 46,217,355 km

• M1: 126,859 km (0.109 R)
• M2: 627,413 km (0.097 R)
• M3: 1,061,846 km (0.038 R)
• M4: 1,528,292 km (0.063 R)
• M5: 2,078,363 km (0.036 R)
• M6: 2,449,067 km (0.108 R)
• M7: 2,771,301 km (0.085 R)
• M8: 3,105,502 km (0.115 R)
• M9: 3,538,738 km (0.102 R)
• M10: 3,875,333 km (0.03 R)
• M11: 5,016,316 km (0.103 R)
• M12: 5,369,965 km (0.042 R)
• M13: 7,607,351 km (0.055 R)
• M14: 8,463,649 km (0.081 R)
• M15: 9,173,042 km (0.065 R)
• M16: 9,631,709 km (0.043 R)
• M17: 11,908,888 km (0.118 R)
• M18: 12,626,509 km (0.109 R)
• M19: 12,974,175 km (0.052 R)
• M20: 14,335,066 km (0.049 R)
• M21: 15,391,826 km (0.094 R)
• M22: 17,445,056 km (0.117 R)

Planet 5 - Ice Giant

Semi-Major Axis: 7.78 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 272.9

Radius: 7.3

Gravity: 5.12 G

Time & Orbit

Eccentricity (e): 0.222

Orbit Range: 6.05 AU - 9.51 AU

Year: 14471 Days

Day: 20.5 Hours

Environment

Temp: -229 °C

Axial Tilt: 10.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 46,217,355 km

• M1: 91,105 km (0.048 R)
• M2: 336,296 km (0.116 R)
• M3: 753,076 km (0.096 R)
• M4: 2,005,060 km (0.112 R)
• M5: 2,280,620 km (0.107 R)
• M6: 2,601,058 km (0.098 R)
• M7: 3,572,248 km (0.067 R)
• M8: 5,324,188 km (0.108 R)
• M9: 7,380,561 km (0.072 R)
• M10: 9,199,222 km (0.115 R)
• M11: 17,537,358 km (0.057 R)
• M12: 19,394,616 km (0.041 R)
• M13: 20,729,927 km (0.066 R)
• M14: 22,462,719 km (0.072 R)
• M15: 22,717,933 km (0.054 R)
• M16: 30,570,624 km (0.104 R)
• M17: 34,250,432 km (0.087 R)

Planet 6 - Ice Giant

Semi-Major Axis: 8.51 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 205.6

Radius: 5.8

Gravity: 6.11 G

Time & Orbit

Eccentricity (e): 0.174

Orbit Range: 7.03 AU - 9.99 AU

Year: 16555 Days

Day: 22.9 Hours

Environment

Temp: -227 °C

Axial Tilt: 32.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 46,217,355 km

• M1: 74,949 km (0.094 R)
• M2: 296,353 km (0.081 R)
• M3: 481,556 km (0.111 R)
• M4: 1,961,826 km (0.045 R)
• M5: 3,276,941 km (0.065 R)
• M6: 4,817,201 km (0.109 R)
• M7: 5,412,301 km (0.096 R)
• M8: 5,710,749 km (0.101 R)
• M9: 7,451,171 km (0.065 R)
• M10: 7,862,565 km (0.108 R)
• M11: 9,854,610 km (0.089 R)
• M12: 10,553,232 km (0.036 R)
• M13: 10,914,511 km (0.047 R)
• M14: 11,230,911 km (0.12 R)
• M15: 11,445,135 km (0.084 R)
• M16: 12,160,213 km (0.085 R)
• M17: 14,866,438 km (0.12 R)
• M18: 15,518,086 km (0.09 R)
• M19: 16,808,368 km (0.066 R)
• M20: 18,538,467 km (0.063 R)
• M21: 20,304,620 km (0.115 R)
• M22: 23,813,587 km (0.11 R)
• M23: 26,934,498 km (0.105 R)
• M24: 33,861,927 km (0.099 R)
• M25: 35,330,978 km (0.105 R)
• M26: 35,560,611 km (0.111 R)
• M27: 36,139,255 km (0.039 R)
• M28: 37,196,463 km (0.077 R)
• M29: 43,054,716 km (0.062 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.99 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 138.5

Radius: 4.6

Gravity: 6.55 G

Time & Orbit

Eccentricity (e): 0.239

Orbit Range: 7.6 AU - 12.38 AU

Year: 21056 Days

Day: 22.5 Hours

Environment

Temp: -239 °C

Axial Tilt: 34.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 46,217,355 km

• M1: 57,296 km (0.112 R)
• M2: 264,489 km (0.094 R)
• M3: 582,983 km (0.088 R)
• M4: 769,831 km (0.071 R)
• M5: 1,171,351 km (0.111 R)
• M6: 1,379,741 km (0.1 R)
• M7: 1,612,665 km (0.112 R)
• M8: 1,969,306 km (0.075 R)
• M9: 2,967,423 km (0.088 R)
• M10: 3,356,378 km (0.12 R)
• M11: 3,600,671 km (0.119 R)
• M12: 3,778,693 km (0.094 R)
• M13: 4,911,148 km (0.063 R)
• M14: 5,966,861 km (0.09 R)
• M15: 7,046,808 km (0.1 R)
• M16: 8,426,998 km (0.064 R)
• M17: 9,489,442 km (0.112 R)
• M18: 10,586,293 km (0.109 R)
• M19: 13,267,835 km (0.055 R)
• M20: 14,829,039 km (0.084 R)
• M21: 15,486,521 km (0.111 R)
• M22: 17,647,762 km (0.069 R)
• M23: 17,867,072 km (0.113 R)
• M24: 18,088,178 km (0.095 R)
• M25: 25,137,828 km (0.107 R)
• M26: 28,106,149 km (0.106 R)
• M27: 36,118,910 km (0.082 R)
• M28: 36,472,410 km (0.057 R)
• M29: 38,397,136 km (0.093 R)
• M30: 39,384,332 km (0.042 R)

Kuiper Belt

Range: 30 - 48 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 343 - 18,674 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit