🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.55 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.08

Radius: 1.03

Gravity: 1.02 G

Time & Orbit

Eccentricity (e): 0.231

Orbit Range: 0.42 AU - 0.68 AU

Year: 268 Days

Day: 45 Hours

Environment

Temp: -123 °C

Axial Tilt: 28 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 49,813,144 km

• M1: 305,628 km (0.119 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 365.8

Radius: 10.9

Gravity: 3.08 G

Time & Orbit

Eccentricity (e): 0.105

Orbit Range: 0.94 AU - 1.16 AU

Year: 706 Days

Day: 8 Hours

Environment

Temp: -157 °C

Axial Tilt: 25.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 49,813,144 km

• M1: 135,536 km (0.056 R)
• M2: 552,016 km (0.107 R)
• M3: 968,497 km (0.113 R)
• M4: 1,458,280 km (0.09 R)
• M5: 2,136,557 km (0.06 R)
• M6: 2,836,675 km (0.094 R)
• M7: 3,404,698 km (0.099 R)
• M8: 4,361,077 km (0.073 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 210.2

Radius: 10

Gravity: 2.1 G

Time & Orbit

Eccentricity (e): 0.206

Orbit Range: 1.45 AU - 2.19 AU

Year: 1611 Days

Day: 11.4 Hours

Environment

Temp: -176 °C

Axial Tilt: 24.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 49,813,144 km

• M1: 124,316 km (0.1 R)
• M2: 463,903 km (0.086 R)
• M3: 849,566 km (0.079 R)
• M4: 1,283,999 km (0.114 R)
• M5: 1,846,337 km (0.116 R)
• M6: 3,068,552 km (0.111 R)
• M7: 3,844,815 km (0.039 R)
• M8: 4,711,585 km (0.088 R)
• M9: 5,070,769 km (0.075 R)
• M10: 6,028,794 km (0.044 R)
• M11: 6,474,596 km (0.115 R)
• M12: 6,851,582 km (0.107 R)
• M13: 7,219,593 km (0.052 R)
• M14: 7,722,840 km (0.107 R)
• M15: 8,172,681 km (0.101 R)
• M16: 8,508,379 km (0.112 R)
• M17: 9,015,516 km (0.117 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 659.3

Radius: 12.1

Gravity: 4.5 G

Time & Orbit

Eccentricity (e): 0.23

Orbit Range: 1.47 AU - 2.35 AU

Year: 1732 Days

Day: 8.5 Hours

Environment

Temp: -195 °C

Axial Tilt: 11.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 49,813,144 km

• M1: 150,495 km (0.055 R)
• M2: 575,653 km (0.084 R)
• M3: 1,013,675 km (0.088 R)
• M4: 1,476,531 km (0.061 R)
• M5: 2,161,390 km (0.071 R)
• M6: 2,831,289 km (0.066 R)
• M7: 3,453,616 km (0.105 R)
• M8: 3,876,530 km (0.096 R)
• M9: 4,972,783 km (0.054 R)
• M10: 6,513,491 km (0.106 R)
• M11: 7,941,702 km (0.091 R)
• M12: 11,893,629 km (0.103 R)
• M13: 13,763,453 km (0.056 R)
• M14: 14,572,329 km (0.119 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 526.4

Radius: 8.9

Gravity: 6.65 G

Time & Orbit

Eccentricity (e): 0.121

Orbit Range: 2.39 AU - 3.05 AU

Year: 2943 Days

Day: 11.5 Hours

Environment

Temp: -192 °C

Axial Tilt: 12.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 49,813,144 km

• M1: 113,096 km (0.057 R)
• M2: 591,510 km (0.089 R)
• M3: 1,153,848 km (0.112 R)
• M4: 1,521,261 km (0.119 R)
• M5: 2,259,975 km (0.105 R)
• M6: 2,583,256 km (0.115 R)
• M7: 4,917,132 km (0.119 R)
• M8: 5,197,479 km (0.094 R)
• M9: 6,483,123 km (0.097 R)
• M10: 7,111,284 km (0.07 R)
• M11: 7,593,289 km (0.08 R)
• M12: 10,995,144 km (0.116 R)
• M13: 11,971,869 km (0.071 R)
• M14: 14,473,893 km (0.105 R)
• M15: 15,746,373 km (0.051 R)
• M16: 16,306,467 km (0.065 R)
• M17: 18,233,138 km (0.09 R)
• M18: 19,136,260 km (0.077 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 591.8

Radius: 12.5

Gravity: 3.79 G

Time & Orbit

Eccentricity (e): 0.148

Orbit Range: 2.36 AU - 3.18 AU

Year: 3024 Days

Day: 6.5 Hours

Environment

Temp: -203 °C

Axial Tilt: 8.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 49,813,144 km

• M1: 176,525 km (0.075 R)
• M2: 658,530 km (0.057 R)
• M3: 1,266,795 km (0.05 R)
• M4: 2,116,660 km (0.115 R)
• M5: 3,570,303 km (0.083 R)
• M6: 4,138,326 km (0.066 R)
• M7: 5,407,065 km (0.095 R)
• M8: 6,212,949 km (0.09 R)
• M9: 6,978,741 km (0.084 R)
• M10: 7,902,508 km (0.104 R)
• M11: 9,511,283 km (0.059 R)
• M12: 10,105,935 km (0.086 R)
• M13: 10,685,776 km (0.075 R)
• M14: 12,825,175 km (0.112 R)
• M15: 13,597,848 km (0.105 R)
• M16: 14,401,338 km (0.119 R)
• M17: 15,793,496 km (0.118 R)
• M18: 16,841,579 km (0.069 R)
• M19: 18,216,084 km (0.098 R)
• M20: 18,671,460 km (0.094 R)
• M21: 19,902,800 km (0.117 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 420.4

Radius: 10.6

Gravity: 3.74 G

Time & Orbit

Eccentricity (e): 0.065

Orbit Range: 4.48 AU - 5.1 AU

Year: 6877 Days

Day: 9.5 Hours

Environment

Temp: -220 °C

Axial Tilt: 2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 49,813,144 km

• M1: 131,796 km (0.096 R)
• M2: 740,210 km (0.112 R)
• M3: 1,341,444 km (0.094 R)
• M4: 2,006,556 km (0.1 R)
• M5: 3,434,169 km (0.103 R)
• M6: 3,804,723 km (0.119 R)
• M7: 4,324,276 km (0.089 R)
• M8: 4,863,726 km (0.079 R)
• M9: 5,219,919 km (0.085 R)
• M10: 6,015,779 km (0.051 R)
• M11: 7,483,484 km (0.027 R)
• M12: 8,110,149 km (0.096 R)
• M13: 8,494,915 km (0.12 R)
• M14: 9,510,385 km (0.107 R)
• M15: 11,159,253 km (0.044 R)
• M16: 12,477,360 km (0.099 R)
• M17: 14,005,801 km (0.055 R)
• M18: 14,336,862 km (0.11 R)
• M19: 15,952,369 km (0.119 R)
• M20: 18,203,219 km (0.111 R)
• M21: 19,065,800 km (0.11 R)
• M22: 26,466,406 km (0.104 R)
• M23: 30,152,348 km (0.12 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 906.6

Radius: 9.6

Gravity: 9.84 G

Time & Orbit

Eccentricity (e): 0.22

Orbit Range: 3.85 AU - 6.01 AU

Year: 7181 Days

Day: 12.6 Hours

Environment

Temp: -215 °C

Axial Tilt: 7.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 49,813,144 km

• M1: 148,102 km (0.102 R)
• M2: 543,489 km (0.055 R)
• M3: 867,518 km (0.102 R)
• M4: 2,853,280 km (0.048 R)
• M5: 3,607,253 km (0.058 R)
• M6: 4,135,932 km (0.099 R)
• M7: 4,544,484 km (0.098 R)
• M8: 5,131,207 km (0.118 R)
• M9: 6,208,760 km (0.077 R)
• M10: 6,527,404 km (0.115 R)
• M11: 7,236,049 km (0.093 R)
• M12: 9,908,017 km (0.057 R)
• M13: 10,843,602 km (0.084 R)
• M14: 12,383,562 km (0.046 R)
• M15: 25,599,936 km (0.06 R)
• M16: 26,237,671 km (0.114 R)
• M17: 26,606,879 km (0.046 R)
• M18: 29,189,985 km (0.033 R)
• M19: 31,105,137 km (0.098 R)
• M20: 34,407,061 km (0.071 R)

Planet 9 - Gas Giant

Semi-Major Axis: 5.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 429.7

Radius: 11.3

Gravity: 3.37 G

Time & Orbit

Eccentricity (e): 0.185

Orbit Range: 4.63 AU - 6.73 AU

Year: 8880 Days

Day: 9.5 Hours

Environment

Temp: -221 °C

Axial Tilt: 24.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 49,813,144 km

• M1: 140,472 km (0.062 R)
• M2: 537,206 km (0.115 R)
• M3: 926,011 km (0.106 R)
• M4: 1,332,319 km (0.117 R)
• M5: 1,718,580 km (0.119 R)
• M6: 2,594,177 km (0.112 R)
• M7: 3,185,537 km (0.091 R)
• M8: 5,891,763 km (0.099 R)
• M9: 6,737,888 km (0.113 R)
• M10: 9,011,925 km (0.043 R)
• M11: 9,629,615 km (0.116 R)
• M12: 13,262,450 km (0.106 R)
• M13: 16,395,029 km (0.09 R)
• M14: 21,041,389 km (0.112 R)
• M15: 23,253,493 km (0.105 R)
• M16: 24,331,645 km (0.071 R)
• M17: 27,673,961 km (0.098 R)
• M18: 30,618,196 km (0.034 R)
• M19: 34,611,113 km (0.103 R)
• M20: 36,015,687 km (0.119 R)
• M21: 36,455,356 km (0.084 R)
• M22: 37,457,960 km (0.1 R)

Planet 10 - Ice Giant

Semi-Major Axis: 7.58 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 410.2

Radius: 3.5

Gravity: 33.49 G

Time & Orbit

Eccentricity (e): 0.005

Orbit Range: 7.54 AU - 7.62 AU

Year: 13690 Days

Day: 24.7 Hours

Environment

Temp: -233 °C

Axial Tilt: 38 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 49,813,144 km

• M1: 491,429 km (0.075 R)
• M2: 898,186 km (0.12 R)
• M3: 1,171,501 km (0.089 R)
• M4: 1,614,011 km (0.112 R)
• M5: 1,767,798 km (0.077 R)
• M6: 2,774,442 km (0.049 R)
• M7: 3,423,697 km (0.05 R)
• M8: 4,488,684 km (0.093 R)
• M9: 5,547,687 km (0.082 R)
• M10: 8,055,845 km (0.094 R)
• M11: 8,690,589 km (0.093 R)
• M12: 9,020,153 km (0.113 R)
• M13: 9,703,965 km (0.111 R)
• M14: 16,393,234 km (0.097 R)
• M15: 18,619,998 km (0.117 R)
• M16: 19,564,260 km (0.097 R)
• M17: 24,581,922 km (0.104 R)
• M18: 31,479,431 km (0.056 R)
• M19: 34,308,177 km (0.053 R)
• M20: 34,658,685 km (0.026 R)
• M21: 43,392,059 km (0.114 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 497 - 14,467 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit