🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 288.3

Radius: 8.1

Gravity: 4.39 G

Time & Orbit

Eccentricity (e): 0.078

Orbit Range: 0.6 AU - 0.7 AU

Year: 362 Days

Day: 12.9 Hours

Environment

Temp: -155 °C

Axial Tilt: 7.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 62,428,934 km

• M1: 100,679 km (0.118 R)
• M2: 413,638 km (0.054 R)
• M3: 667,506 km (0.055 R)
• M4: 923,468 km (0.089 R)
• M5: 1,186,311 km (0.113 R)
• M6: 1,465,162 km (0.114 R)
• M7: 1,722,171 km (0.082 R)
• M8: 2,017,028 km (0.115 R)
• M9: 2,817,676 km (0.108 R)
• M10: 3,071,992 km (0.11 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 838.1

Radius: 8.3

Gravity: 12.17 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 0.82 AU - 0.86 AU

Year: 531 Days

Day: 5.6 Hours

Environment

Temp: -175 °C

Axial Tilt: 24.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 62,428,934 km

• M1: 103,223 km (0.086 R)
• M2: 381,475 km (0.073 R)
• M3: 812,167 km (0.089 R)
• M4: 1,090,269 km (0.106 R)
• M5: 1,419,085 km (0.057 R)
• M6: 1,716,636 km (0.108 R)
• M7: 2,147,477 km (0.115 R)
• M8: 2,703,234 km (0.097 R)
• M9: 2,986,123 km (0.09 R)
• M10: 3,263,777 km (0.089 R)
• M11: 3,585,113 km (0.055 R)
• M12: 3,857,381 km (0.113 R)
• M13: 5,433,095 km (0.048 R)
• M14: 5,811,877 km (0.089 R)
• M15: 6,150,567 km (0.079 R)
• M16: 6,846,945 km (0.051 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 468.1

Radius: 9.3

Gravity: 5.41 G

Time & Orbit

Eccentricity (e): 0.119

Orbit Range: 0.93 AU - 1.19 AU

Year: 753 Days

Day: 10.9 Hours

Environment

Temp: -170 °C

Axial Tilt: 26.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 62,428,934 km

• M1: 115,639 km (0.086 R)
• M2: 441,763 km (0.093 R)
• M3: 747,241 km (0.096 R)
• M4: 1,342,641 km (0.12 R)
• M5: 1,638,545 km (0.034 R)
• M6: 1,960,929 km (0.103 R)
• M7: 2,266,857 km (0.082 R)
• M8: 2,583,406 km (0.1 R)
• M9: 3,071,843 km (0.105 R)
• M10: 5,015,269 km (0.086 R)
• M11: 5,740,220 km (0.07 R)
• M12: 6,453,054 km (0.072 R)
• M13: 6,988,315 km (0.118 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 803.1

Radius: 8.7

Gravity: 10.61 G

Time & Orbit

Eccentricity (e): 0.13

Orbit Range: 0.97 AU - 1.27 AU

Year: 818 Days

Day: 10.6 Hours

Environment

Temp: -182 °C

Axial Tilt: 34.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 62,428,934 km

• M1: 108,159 km (0.095 R)
• M2: 733,778 km (0.095 R)
• M3: 1,085,931 km (0.085 R)
• M4: 1,364,781 km (0.094 R)
• M5: 1,692,102 km (0.111 R)
• M6: 2,032,437 km (0.109 R)
• M7: 2,385,338 km (0.039 R)
• M8: 2,965,927 km (0.119 R)
• M9: 3,380,014 km (0.108 R)
• M10: 4,049,465 km (0.078 R)
• M11: 4,491,826 km (0.11 R)
• M12: 4,929,848 km (0.092 R)
• M13: 5,973,593 km (0.104 R)
• M14: 6,309,440 km (0.045 R)
• M15: 6,635,862 km (0.1 R)
• M16: 7,251,607 km (0.114 R)
• M17: 7,979,999 km (0.113 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 680.8

Radius: 14.5

Gravity: 3.24 G

Time & Orbit

Eccentricity (e): 0.04

Orbit Range: 1.29 AU - 1.39 AU

Year: 1071 Days

Day: 12.2 Hours

Environment

Temp: -189 °C

Axial Tilt: 26.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 62,428,934 km

• M1: 180,265 km (0.054 R)
• M2: 646,861 km (0.108 R)
• M3: 1,226,104 km (0.11 R)
• M4: 1,925,624 km (0.044 R)
• M5: 2,391,920 km (0.083 R)
• M6: 3,398,714 km (0.097 R)
• M7: 4,105,863 km (0.045 R)
• M8: 4,965,752 km (0.078 R)
• M9: 5,569,678 km (0.102 R)
• M10: 6,266,356 km (0.114 R)
• M11: 7,140,007 km (0.092 R)
• M12: 7,656,868 km (0.105 R)
• M13: 8,411,888 km (0.113 R)
• M14: 9,534,171 km (0.111 R)
• M15: 10,627,582 km (0.092 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 629.9

Radius: 15

Gravity: 2.8 G

Time & Orbit

Eccentricity (e): 0.094

Orbit Range: 1.4 AU - 1.7 AU

Year: 1332 Days

Day: 5.9 Hours

Environment

Temp: -194 °C

Axial Tilt: 1.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 62,428,934 km

• M1: 186,549 km (0.054 R)
• M2: 673,789 km (0.081 R)
• M3: 1,594,863 km (0.116 R)
• M4: 2,124,290 km (0.091 R)
• M5: 2,657,606 km (0.059 R)
• M6: 4,084,919 km (0.06 R)
• M7: 5,911,061 km (0.05 R)
• M8: 6,524,711 km (0.116 R)
• M9: 7,460,446 km (0.118 R)
• M10: 9,059,348 km (0.075 R)
• M11: 11,557,034 km (0.113 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.31 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 699.3

Radius: 12.6

Gravity: 4.4 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 2.02 AU - 2.6 AU

Year: 2423 Days

Day: 9.2 Hours

Environment

Temp: -203 °C

Axial Tilt: 24.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 62,428,934 km

• M1: 156,629 km (0.091 R)
• M2: 920,625 km (0.11 R)
• M3: 1,383,481 km (0.096 R)
• M4: 1,955,693 km (0.107 R)
• M5: 2,818,125 km (0.066 R)
• M6: 3,441,349 km (0.087 R)
• M7: 3,996,956 km (0.11 R)
• M8: 7,423,645 km (0.091 R)
• M9: 8,850,060 km (0.093 R)
• M10: 9,539,707 km (0.072 R)
• M11: 12,239,200 km (0.088 R)
• M12: 16,564,823 km (0.076 R)
• M13: 17,506,092 km (0.102 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.66 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 221.9

Radius: 7

Gravity: 4.53 G

Time & Orbit

Eccentricity (e): 0.192

Orbit Range: 5.38 AU - 7.94 AU

Year: 11864 Days

Day: 22.3 Hours

Environment

Temp: -226 °C

Axial Tilt: 11.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 62,428,934 km

• M1: 93,798 km (0.081 R)
• M2: 343,477 km (0.05 R)
• M3: 570,865 km (0.109 R)
• M4: 827,725 km (0.044 R)
• M5: 1,162,375 km (0.058 R)
• M6: 1,876,855 km (0.048 R)
• M7: 2,253,542 km (0.072 R)
• M8: 2,813,936 km (0.062 R)
• M9: 4,157,474 km (0.034 R)
• M10: 4,551,066 km (0.102 R)
• M11: 5,292,174 km (0.114 R)
• M12: 7,569,503 km (0.099 R)
• M13: 9,600,294 km (0.065 R)
• M14: 10,055,370 km (0.077 R)
• M15: 10,477,236 km (0.048 R)
• M16: 11,306,158 km (0.114 R)
• M17: 12,928,996 km (0.064 R)
• M18: 16,500,196 km (0.11 R)
• M19: 16,889,899 km (0.059 R)
• M20: 19,865,101 km (0.057 R)
• M21: 21,746,294 km (0.099 R)
• M22: 29,028,270 km (0.063 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.38 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 779.7

Radius: 4.7

Gravity: 35.3 G

Time & Orbit

Eccentricity (e): 0.14

Orbit Range: 7.21 AU - 9.55 AU

Year: 16745 Days

Day: 21.7 Hours

Environment

Temp: -230 °C

Axial Tilt: 41.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 62,428,934 km

• M1: 58,493 km (0.119 R)
• M2: 260,300 km (0.103 R)
• M3: 449,392 km (0.099 R)
• M4: 759,209 km (0.084 R)
• M5: 985,252 km (0.084 R)
• M6: 1,355,806 km (0.052 R)
• M7: 1,796,072 km (0.065 R)
• M8: 2,456,696 km (0.055 R)
• M9: 3,186,584 km (0.041 R)
• M10: 4,209,086 km (0.085 R)
• M11: 5,664,673 km (0.11 R)
• M12: 6,700,489 km (0.065 R)
• M13: 10,615,764 km (0.081 R)
• M14: 11,790,107 km (0.083 R)
• M15: 14,031,083 km (0.112 R)
• M16: 15,673,219 km (0.095 R)
• M17: 19,602,407 km (0.043 R)
• M18: 19,873,479 km (0.114 R)
• M19: 20,701,503 km (0.06 R)
• M20: 28,516,496 km (0.111 R)
• M21: 29,925,408 km (0.096 R)
• M22: 32,250,010 km (0.041 R)
• M23: 33,908,302 km (0.087 R)
• M24: 35,088,929 km (0.103 R)
• M25: 38,795,066 km (0.079 R)
• M26: 39,652,711 km (0.081 R)
• M27: 44,131,073 km (0.114 R)
• M28: 46,172,186 km (0.08 R)
• M29: 56,776,281 km (0.115 R)
• M30: 61,474,403 km (0.11 R)
• M31: 62,639,172 km (0.046 R)
• M32: 69,938,949 km (0.08 R)

Planet 10 - Ice Giant

Semi-Major Axis: 9.07 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 425.7

Radius: 7

Gravity: 8.69 G

Time & Orbit

Eccentricity (e): 0.2

Orbit Range: 7.26 AU - 10.88 AU

Year: 18855 Days

Day: 15.8 Hours

Environment

Temp: -227 °C

Axial Tilt: 45.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 62,428,934 km

• M1: 87,365 km (0.085 R)
• M2: 367,113 km (0.107 R)
• M3: 639,980 km (0.082 R)
• M4: 1,383,631 km (0.099 R)
• M5: 2,168,421 km (0.099 R)
• M6: 2,806,007 km (0.11 R)
• M7: 3,813,699 km (0.063 R)
• M8: 5,506,997 km (0.11 R)
• M9: 6,559,567 km (0.102 R)
• M10: 8,454,374 km (0.058 R)
• M11: 8,802,339 km (0.092 R)
• M12: 9,580,098 km (0.048 R)
• M13: 10,744,568 km (0.105 R)
• M14: 12,187,888 km (0.115 R)
• M15: 14,098,702 km (0.054 R)
• M16: 15,089,189 km (0.068 R)
• M17: 16,815,698 km (0.087 R)
• M18: 18,669,814 km (0.114 R)
• M19: 22,399,888 km (0.093 R)
• M20: 23,259,178 km (0.106 R)
• M21: 25,247,184 km (0.098 R)
• M22: 34,712,540 km (0.061 R)
• M23: 36,251,154 km (0.055 R)
• M24: 36,905,496 km (0.113 R)
• M25: 41,281,084 km (0.081 R)
• M26: 43,740,473 km (0.086 R)
• M27: 44,781,075 km (0.105 R)
• M28: 46,603,028 km (0.059 R)
• M29: 50,232,123 km (0.116 R)
• M30: 50,719,064 km (0.099 R)
• M31: 52,198,437 km (0.098 R)
• M32: 53,368,741 km (0.111 R)
• M33: 56,984,821 km (0.073 R)
• M34: 58,942,608 km (0.056 R)
• M35: 60,029,138 km (0.093 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: 277 - 11,337 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit