🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 691.7

Radius: 10.5

Gravity: 6.27 G

Time & Orbit

Eccentricity (e): 0.078

Orbit Range: 0.48 AU - 0.56 AU

Year: 259 Days

Day: 8.4 Hours

Environment

Temp: -149 °C

Axial Tilt: 12.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 59,968,924 km

• M1: 143,464 km (0.103 R)
• M2: 487,390 km (0.062 R)
• M3: 913,744 km (0.083 R)
• M4: 1,481,617 km (0.106 R)
• M5: 1,823,299 km (0.077 R)
• M6: 2,760,230 km (0.114 R)
• M7: 3,527,817 km (0.118 R)
• M8: 3,897,922 km (0.05 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 642.4

Radius: 9.3

Gravity: 7.43 G

Time & Orbit

Eccentricity (e): 0.08

Orbit Range: 0.69 AU - 0.81 AU

Year: 448 Days

Day: 9.3 Hours

Environment

Temp: -165 °C

Axial Tilt: 24.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 59,968,924 km

• M1: 116,387 km (0.045 R)
• M2: 452,085 km (0.088 R)
• M3: 850,015 km (0.073 R)
• M4: 1,173,894 km (0.054 R)
• M5: 1,659,040 km (0.034 R)
• M6: 2,149,871 km (0.109 R)
• M7: 2,644,142 km (0.057 R)
• M8: 3,212,315 km (0.049 R)
• M9: 3,532,155 km (0.071 R)
• M10: 4,167,049 km (0.03 R)
• M11: 4,680,768 km (0.068 R)
• M12: 5,061,794 km (0.095 R)
• M13: 5,800,059 km (0.072 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 857.7

Radius: 9.8

Gravity: 8.93 G

Time & Orbit

Eccentricity (e): 0.063

Orbit Range: 0.82 AU - 0.92 AU

Year: 560 Days

Day: 14.4 Hours

Environment

Temp: -162 °C

Axial Tilt: 145.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 59,968,924 km

• M1: 122,521 km (0.045 R)
• M2: 549,772 km (0.118 R)
• M3: 904,319 km (0.119 R)
• M4: 1,333,067 km (0.092 R)
• M5: 1,852,770 km (0.064 R)
• M6: 2,492,749 km (0.056 R)
• M7: 2,841,911 km (0.046 R)
• M8: 3,349,945 km (0.078 R)
• M9: 3,790,810 km (0.06 R)
• M10: 4,740,308 km (0.073 R)
• M11: 5,403,325 km (0.096 R)
• M12: 6,049,588 km (0.096 R)
• M13: 6,726,070 km (0.057 R)
• M14: 7,430,077 km (0.076 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 625.5

Radius: 14.8

Gravity: 2.86 G

Time & Orbit

Eccentricity (e): 0.023

Orbit Range: 0.89 AU - 0.93 AU

Year: 599 Days

Day: 9.3 Hours

Environment

Temp: -175 °C

Axial Tilt: 18.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 59,968,924 km

• M1: 184,005 km (0.069 R)
• M2: 724,054 km (0.058 R)
• M3: 1,282,353 km (0.085 R)
• M4: 2,028,098 km (0.102 R)
• M5: 2,645,938 km (0.103 R)
• M6: 3,217,102 km (0.031 R)
• M7: 4,673,587 km (0.088 R)
• M8: 5,190,597 km (0.052 R)
• M9: 6,302,109 km (0.096 R)
• M10: 7,058,476 km (0.119 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 453

Radius: 11.9

Gravity: 3.2 G

Time & Orbit

Eccentricity (e): 0.129

Orbit Range: 0.93 AU - 1.21 AU

Year: 764 Days

Day: 9.5 Hours

Environment

Temp: -184 °C

Axial Tilt: 33.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 59,968,924 km

• M1: 148,102 km (0.084 R)
• M2: 626,815 km (0.038 R)
• M3: 1,120,039 km (0.081 R)
• M4: 1,804,599 km (0.116 R)
• M5: 2,335,223 km (0.038 R)
• M6: 2,991,957 km (0.098 R)
• M7: 3,513,156 km (0.083 R)
• M8: 3,978,855 km (0.104 R)
• M9: 4,548,074 km (0.112 R)
• M10: 5,001,805 km (0.11 R)
• M11: 5,379,390 km (0.077 R)
• M12: 5,813,224 km (0.091 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 707.1

Radius: 10.1

Gravity: 6.93 G

Time & Orbit

Eccentricity (e): 0.126

Orbit Range: 2.39 AU - 3.07 AU

Year: 3114 Days

Day: 13.1 Hours

Environment

Temp: -217 °C

Axial Tilt: 26.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 59,968,924 km

• M1: 125,662 km (0.067 R)
• M2: 467,194 km (0.091 R)
• M3: 871,258 km (0.119 R)
• M4: 1,510,191 km (0.088 R)
• M5: 2,155,556 km (0.102 R)
• M6: 2,482,128 km (0.06 R)
• M7: 2,858,516 km (0.084 R)
• M8: 3,495,055 km (0.105 R)
• M9: 4,202,055 km (0.052 R)
• M10: 4,953,185 km (0.112 R)
• M11: 6,035,825 km (0.109 R)
• M12: 6,429,716 km (0.092 R)
• M13: 7,175,911 km (0.05 R)
• M14: 7,554,094 km (0.112 R)
• M15: 7,912,381 km (0.098 R)
• M16: 8,384,811 km (0.103 R)
• M17: 10,227,707 km (0.116 R)
• M18: 10,626,535 km (0.106 R)
• M19: 10,952,958 km (0.081 R)
• M20: 13,714,983 km (0.071 R)
• M21: 17,356,345 km (0.108 R)
• M22: 18,039,558 km (0.035 R)
• M23: 20,825,071 km (0.079 R)
• M24: 22,055,064 km (0.099 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.46 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 381.1

Radius: 11

Gravity: 3.15 G

Time & Orbit

Eccentricity (e): 0.247

Orbit Range: 2.61 AU - 4.31 AU

Year: 4442 Days

Day: 13 Hours

Environment

Temp: -220 °C

Axial Tilt: 7.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 59,968,924 km

• M1: 136,882 km (0.101 R)
• M2: 533,167 km (0.064 R)
• M3: 1,201,271 km (0.027 R)
• M4: 1,938,190 km (0.115 R)
• M5: 2,357,662 km (0.028 R)
• M6: 2,707,721 km (0.057 R)
• M7: 3,092,637 km (0.102 R)
• M8: 4,611,504 km (0.102 R)
• M9: 5,418,136 km (0.111 R)
• M10: 7,929,136 km (0.064 R)
• M11: 8,581,981 km (0.115 R)
• M12: 10,675,154 km (0.066 R)
• M13: 11,950,476 km (0.095 R)
• M14: 12,307,118 km (0.105 R)
• M15: 13,659,782 km (0.12 R)
• M16: 14,148,667 km (0.066 R)
• M17: 14,547,944 km (0.079 R)
• M18: 15,791,402 km (0.085 R)
• M19: 18,429,710 km (0.086 R)
• M20: 20,960,158 km (0.105 R)
• M21: 22,007,792 km (0.06 R)

Planet 8 - Gas Giant

Semi-Major Axis: 3.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 484

Radius: 12.5

Gravity: 3.1 G

Time & Orbit

Eccentricity (e): 0.019

Orbit Range: 3.47 AU - 3.61 AU

Year: 4597 Days

Day: 13.4 Hours

Environment

Temp: -207 °C

Axial Tilt: 18.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 59,968,924 km

• M1: 156,928 km (0.064 R)
• M2: 692,638 km (0.115 R)
• M3: 1,211,444 km (0.037 R)
• M4: 1,701,377 km (0.054 R)
• M5: 2,397,755 km (0.072 R)
• M6: 3,021,129 km (0.111 R)
• M7: 5,138,238 km (0.08 R)
• M8: 8,067,813 km (0.094 R)
• M9: 13,439,125 km (0.074 R)
• M10: 22,032,026 km (0.088 R)
• M11: 23,582,309 km (0.051 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.61 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 441.1

Radius: 4.1

Gravity: 26.24 G

Time & Orbit

Eccentricity (e): 0.06

Orbit Range: 8.09 AU - 9.13 AU

Year: 17439 Days

Day: 18.7 Hours

Environment

Temp: -224 °C

Axial Tilt: 3.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 59,968,924 km

• M1: 68,217 km (0.084 R)
• M2: 315,352 km (0.039 R)
• M3: 799,152 km (0.082 R)
• M4: 1,836,015 km (0.097 R)
• M5: 2,598,066 km (0.099 R)
• M6: 3,261,533 km (0.055 R)
• M7: 3,497,000 km (0.088 R)
• M8: 3,715,712 km (0.095 R)
• M9: 4,001,893 km (0.046 R)
• M10: 6,718,889 km (0.104 R)
• M11: 8,379,126 km (0.093 R)
• M12: 14,331,177 km (0.098 R)
• M13: 22,136,895 km (0.066 R)
• M14: 23,456,049 km (0.113 R)
• M15: 32,606,651 km (0.078 R)
• M16: 46,860,635 km (0.118 R)
• M17: 47,013,375 km (0.061 R)
• M18: 53,062,514 km (0.105 R)
• M19: 59,789,332 km (0.114 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 261 - 11,003 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit