🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.23

Radius: 1.78

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.232

Orbit Range: 0.46 AU - 0.74 AU

Year: 300 Days

Day: 37.3 Hours

Environment

Temp: -122 °C

Axial Tilt: 18.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 87,184,108 km

• M1: 42,486 km (0.119 R)
• M2: 228,436 km (0.076 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 964.1

Radius: 8.8

Gravity: 12.45 G

Time & Orbit

Eccentricity (e): 0.046

Orbit Range: 0.88 AU - 0.96 AU

Year: 570 Days

Day: 7.8 Hours

Environment

Temp: -149 °C

Axial Tilt: 33.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 87,184,108 km

• M1: 109,506 km (0.083 R)
• M2: 428,747 km (0.078 R)
• M3: 715,826 km (0.105 R)
• M4: 1,125,724 km (0.098 R)
• M5: 1,846,487 km (0.08 R)
• M6: 2,273,588 km (0.111 R)
• M7: 2,952,763 km (0.076 R)
• M8: 3,353,087 km (0.118 R)
• M9: 3,746,828 km (0.066 R)
• M10: 4,095,691 km (0.055 R)
• M11: 4,842,333 km (0.106 R)
• M12: 5,346,628 km (0.113 R)
• M13: 6,020,716 km (0.064 R)
• M14: 7,268,811 km (0.117 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.29 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 82.7

Radius: 8.8

Gravity: 1.07 G

Time & Orbit

Eccentricity (e): 0.244

Orbit Range: 0.98 AU - 1.6 AU

Year: 946 Days

Day: 11.8 Hours

Environment

Temp: -169 °C

Axial Tilt: 38.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 87,184,108 km

• M1: 109,506 km (0.057 R)
• M2: 388,206 km (0.042 R)
• M3: 692,788 km (0.107 R)
• M4: 995,424 km (0.057 R)
• M5: 1,492,089 km (0.068 R)
• M6: 1,830,629 km (0.118 R)
• M7: 2,146,430 km (0.087 R)
• M8: 2,800,023 km (0.108 R)
• M9: 3,104,754 km (0.1 R)
• M10: 3,499,693 km (0.113 R)
• M11: 4,015,207 km (0.093 R)
• M12: 4,677,477 km (0.088 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 403.6

Radius: 8.1

Gravity: 6.15 G

Time & Orbit

Eccentricity (e): 0.228

Orbit Range: 1.53 AU - 2.43 AU

Year: 1799 Days

Day: 5.8 Hours

Environment

Temp: -198 °C

Axial Tilt: 10.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 87,184,108 km

• M1: 100,829 km (0.063 R)
• M2: 430,243 km (0.068 R)
• M3: 739,013 km (0.079 R)
• M4: 1,062,294 km (0.029 R)
• M5: 1,595,461 km (0.05 R)
• M6: 2,046,200 km (0.097 R)
• M7: 2,970,266 km (0.101 R)
• M8: 3,622,064 km (0.12 R)
• M9: 4,439,766 km (0.104 R)
• M10: 7,054,587 km (0.112 R)
• M11: 7,417,810 km (0.089 R)
• M12: 8,323,476 km (0.09 R)
• M13: 9,833,367 km (0.111 R)
• M14: 12,428,142 km (0.087 R)

Planet 5 - Ice Giant

Semi-Major Axis: 6.35 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 827.3

Radius: 6.1

Gravity: 22.23 G

Time & Orbit

Eccentricity (e): 0.097

Orbit Range: 5.73 AU - 6.97 AU

Year: 10332 Days

Day: 15.4 Hours

Environment

Temp: -228 °C

Axial Tilt: 26.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (43)

Outer Limit: 87,184,108 km

• M1: 78,988 km (0.111 R)
• M2: 384,766 km (0.052 R)
• M3: 751,879 km (0.106 R)
• M4: 1,207,255 km (0.105 R)
• M5: 1,454,390 km (0.037 R)
• M6: 1,688,661 km (0.115 R)
• M7: 1,914,105 km (0.108 R)
• M8: 2,214,946 km (0.03 R)
• M9: 3,095,180 km (0.119 R)
• M10: 3,772,260 km (0.116 R)
• M11: 4,160,018 km (0.115 R)
• M12: 6,092,672 km (0.109 R)
• M13: 6,986,071 km (0.101 R)
• M14: 7,700,251 km (0.094 R)
• M15: 8,052,853 km (0.091 R)
• M16: 9,672,400 km (0.109 R)
• M17: 10,504,912 km (0.099 R)
• M18: 11,160,001 km (0.071 R)
• M19: 12,551,112 km (0.065 R)
• M20: 14,514,285 km (0.106 R)
• M21: 19,519,381 km (0.107 R)
• M22: 24,796,445 km (0.099 R)
• M23: 25,178,818 km (0.101 R)
• M24: 26,747,351 km (0.087 R)
• M25: 27,453,603 km (0.061 R)
• M26: 28,588,452 km (0.066 R)
• M27: 29,647,007 km (0.081 R)
• M28: 32,067,201 km (0.1 R)
• M29: 32,635,075 km (0.082 R)
• M30: 33,094,191 km (0.103 R)
• M31: 35,818,069 km (0.085 R)
• M32: 36,306,655 km (0.08 R)
• M33: 36,923,447 km (0.087 R)
• M34: 37,672,933 km (0.089 R)
• M35: 39,590,777 km (0.118 R)
• M36: 40,375,717 km (0.105 R)
• M37: 43,897,850 km (0.074 R)
• M38: 44,317,023 km (0.083 R)
• M39: 44,597,818 km (0.117 R)
• M40: 45,733,415 km (0.06 R)
• M41: 47,179,578 km (0.085 R)
• M42: 49,255,249 km (0.027 R)
• M43: 51,082,138 km (0.038 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.61 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 245.3

Radius: 4.5

Gravity: 12.11 G

Time & Orbit

Eccentricity (e): 0.231

Orbit Range: 5.08 AU - 8.14 AU

Year: 10973 Days

Day: 22.5 Hours

Environment

Temp: -231 °C

Axial Tilt: 23.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 87,184,108 km

• M1: 64,626 km (0.073 R)
• M2: 215,421 km (0.109 R)
• M3: 490,083 km (0.106 R)
• M4: 634,594 km (0.082 R)
• M5: 875,447 km (0.114 R)
• M6: 1,701,077 km (0.1 R)
• M7: 1,887,327 km (0.073 R)
• M8: 2,233,795 km (0.076 R)
• M9: 2,529,700 km (0.101 R)
• M10: 2,677,652 km (0.114 R)
• M11: 2,851,036 km (0.107 R)
• M12: 5,139,734 km (0.067 R)
• M13: 5,499,816 km (0.051 R)
• M14: 7,257,292 km (0.086 R)
• M15: 7,406,291 km (0.063 R)
• M16: 7,865,557 km (0.057 R)
• M17: 8,589,760 km (0.067 R)
• M18: 9,848,327 km (0.088 R)
• M19: 11,626,298 km (0.045 R)
• M20: 13,271,725 km (0.04 R)
• M21: 14,766,507 km (0.107 R)
• M22: 15,492,954 km (0.112 R)
• M23: 17,814,414 km (0.11 R)
• M24: 19,341,808 km (0.104 R)
• M25: 22,417,091 km (0.109 R)
• M26: 22,892,813 km (0.113 R)
• M27: 24,863,316 km (0.084 R)
• M28: 28,486,277 km (0.043 R)
• M29: 30,471,291 km (0.088 R)
• M30: 31,349,431 km (0.034 R)
• M31: 32,952,222 km (0.078 R)
• M32: 34,925,568 km (0.032 R)
• M33: 35,457,538 km (0.094 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.08 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 855.5

Radius: 7.3

Gravity: 16.05 G

Time & Orbit

Eccentricity (e): 0.075

Orbit Range: 6.55 AU - 7.61 AU

Year: 12164 Days

Day: 19.3 Hours

Environment

Temp: -223 °C

Axial Tilt: 33.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 87,184,108 km

• M1: 90,806 km (0.095 R)
• M2: 439,070 km (0.11 R)
• M3: 2,440,091 km (0.087 R)
• M4: 2,674,062 km (0.115 R)
• M5: 3,963,296 km (0.08 R)
• M6: 5,732,890 km (0.118 R)
• M7: 6,384,837 km (0.107 R)
• M8: 6,749,407 km (0.06 R)
• M9: 7,835,488 km (0.12 R)
• M10: 8,206,341 km (0.118 R)
• M11: 8,492,222 km (0.063 R)
• M12: 8,784,686 km (0.114 R)
• M13: 9,083,882 km (0.04 R)
• M14: 10,130,618 km (0.11 R)
• M15: 10,852,877 km (0.104 R)
• M16: 12,461,652 km (0.114 R)
• M17: 16,518,746 km (0.043 R)
• M18: 19,721,188 km (0.098 R)
• M19: 21,288,525 km (0.092 R)
• M20: 27,746,665 km (0.071 R)
• M21: 30,272,625 km (0.106 R)
• M22: 32,948,033 km (0.104 R)
• M23: 36,284,964 km (0.103 R)
• M24: 40,936,859 km (0.097 R)
• M25: 43,765,904 km (0.097 R)
• M26: 47,482,065 km (0.117 R)
• M27: 50,921,769 km (0.056 R)
• M28: 55,027,931 km (0.046 R)
• M29: 56,730,355 km (0.098 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.14 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 890.7

Radius: 7.6

Gravity: 15.42 G

Time & Orbit

Eccentricity (e): 0.011

Orbit Range: 9.04 AU - 9.24 AU

Year: 17842 Days

Day: 19.6 Hours

Environment

Temp: -222 °C

Axial Tilt: 35.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 87,184,108 km

• M1: 94,546 km (0.091 R)
• M2: 513,569 km (0.099 R)
• M3: 1,492,837 km (0.108 R)
• M4: 1,763,908 km (0.099 R)
• M5: 2,429,021 km (0.099 R)
• M6: 2,958,597 km (0.112 R)
• M7: 3,333,938 km (0.05 R)
• M8: 6,248,703 km (0.056 R)
• M9: 7,382,954 km (0.06 R)
• M10: 10,171,458 km (0.106 R)
• M11: 10,840,311 km (0.068 R)
• M12: 13,811,623 km (0.111 R)
• M13: 14,555,574 km (0.115 R)
• M14: 16,532,210 km (0.051 R)
• M15: 16,864,168 km (0.114 R)
• M16: 29,265,532 km (0.113 R)
• M17: 30,243,304 km (0.029 R)
• M18: 32,782,578 km (0.114 R)
• M19: 39,597,808 km (0.113 R)
• M20: 40,043,460 km (0.102 R)
• M21: 48,138,052 km (0.096 R)
• M22: 52,298,368 km (0.026 R)
• M23: 53,374,725 km (0.086 R)
• M24: 54,465,742 km (0.1 R)
• M25: 58,785,979 km (0.065 R)
• M26: 60,930,614 km (0.069 R)
• M27: 76,271,128 km (0.102 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.7 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 44.9

Radius: 6.2

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.249

Orbit Range: 7.28 AU - 12.12 AU

Year: 19506 Days

Day: 18.1 Hours

Environment

Temp: -229 °C

Axial Tilt: 18 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 87,184,108 km

• M1: 102,923 km (0.078 R)
• M2: 328,816 km (0.079 R)
• M3: 662,868 km (0.083 R)
• M4: 1,119,740 km (0.077 R)
• M5: 1,516,623 km (0.108 R)
• M6: 1,741,469 km (0.112 R)
• M7: 2,658,205 km (0.072 R)
• M8: 6,195,297 km (0.067 R)
• M9: 7,674,072 km (0.094 R)
• M10: 13,132,150 km (0.104 R)
• M11: 15,427,879 km (0.064 R)
• M12: 16,549,264 km (0.07 R)
• M13: 19,826,206 km (0.114 R)
• M14: 20,446,289 km (0.069 R)
• M15: 22,680,832 km (0.112 R)
• M16: 24,834,743 km (0.113 R)
• M17: 28,056,482 km (0.082 R)

Planet 10 - Ice Giant

Semi-Major Axis: 11.02 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 738.8

Radius: 3.2

Gravity: 72.15 G

Time & Orbit

Eccentricity (e): 0.018

Orbit Range: 10.82 AU - 11.22 AU

Year: 23620 Days

Day: 23.2 Hours

Environment

Temp: -233 °C

Axial Tilt: 32.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 87,184,108 km

• M1: 39,793 km (0.078 R)
• M2: 396,734 km (0.076 R)
• M3: 893,847 km (0.038 R)
• M4: 1,113,906 km (0.051 R)
• M5: 1,607,130 km (0.09 R)
• M6: 2,099,905 km (0.046 R)
• M7: 2,299,768 km (0.1 R)
• M8: 3,031,302 km (0.109 R)
• M9: 7,065,507 km (0.057 R)
• M10: 14,697,243 km (0.106 R)
• M11: 16,263,383 km (0.087 R)
• M12: 18,303,898 km (0.057 R)
• M13: 19,626,044 km (0.102 R)
• M14: 24,866,308 km (0.114 R)
• M15: 26,132,354 km (0.106 R)
• M16: 26,603,289 km (0.086 R)
• M17: 27,805,008 km (0.075 R)
• M18: 29,547,674 km (0.105 R)
• M19: 31,229,752 km (0.109 R)
• M20: 50,228,831 km (0.079 R)
• M21: 58,020,337 km (0.096 R)
• M22: 60,649,221 km (0.039 R)
• M23: 65,492,901 km (0.103 R)
• M24: 74,755,103 km (0.043 R)
• M25: 83,829,411 km (0.086 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: 203 - 16,186 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit