🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.44 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 840.4

Radius: 9.5

Gravity: 9.31 G

Time & Orbit

Eccentricity (e): 0.069

Orbit Range: 0.82 AU - 0.94 AU

Year: 560 Days

Day: 5.9 Hours

Environment

Temp: -177 °C

Axial Tilt: 20 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 78,692,646 km

• M1: 119,379 km (0.076 R)
• M2: 443,258 km (0.069 R)
• M3: 842,386 km (0.044 R)
• M4: 1,206,208 km (0.073 R)
• M5: 1,763,161 km (0.089 R)
• M6: 2,092,425 km (0.105 R)
• M7: 2,411,817 km (0.079 R)
• M8: 2,808,700 km (0.074 R)
• M9: 3,274,099 km (0.09 R)
• M10: 3,707,484 km (0.107 R)
• M11: 4,061,133 km (0.119 R)
• M12: 4,360,030 km (0.065 R)
• M13: 5,382,083 km (0.045 R)
• M14: 6,257,679 km (0.063 R)
• M15: 6,637,658 km (0.086 R)
• M16: 6,969,316 km (0.115 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.43 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 331

Radius: 9.5

Gravity: 3.67 G

Time & Orbit

Eccentricity (e): 0.201

Orbit Range: 1.14 AU - 1.72 AU

Year: 1160 Days

Day: 10.4 Hours

Environment

Temp: -193 °C

Axial Tilt: 15.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 78,692,646 km

• M1: 118,182 km (0.109 R)
• M2: 572,511 km (0.11 R)
• M3: 977,323 km (0.113 R)
• M4: 1,752,988 km (0.043 R)
• M5: 2,221,977 km (0.084 R)
• M6: 2,644,442 km (0.074 R)
• M7: 4,179,615 km (0.059 R)
• M8: 4,520,249 km (0.108 R)
• M9: 5,056,857 km (0.087 R)
• M10: 5,693,845 km (0.068 R)
• M11: 6,072,477 km (0.119 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 305.9

Radius: 8.6

Gravity: 4.14 G

Time & Orbit

Eccentricity (e): 0.16

Orbit Range: 1.28 AU - 1.76 AU

Year: 1271 Days

Day: 6.3 Hours

Environment

Temp: -191 °C

Axial Tilt: 37.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 78,692,646 km

• M1: 107,112 km (0.108 R)
• M2: 814,710 km (0.085 R)
• M3: 1,088,175 km (0.113 R)
• M4: 2,417,950 km (0.107 R)
• M5: 3,369,842 km (0.057 R)
• M6: 4,302,734 km (0.08 R)
• M7: 5,849,127 km (0.077 R)
• M8: 6,303,306 km (0.055 R)
• M9: 7,399,709 km (0.084 R)
• M10: 7,832,945 km (0.087 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.44 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 672.4

Radius: 12.8

Gravity: 4.1 G

Time & Orbit

Eccentricity (e): 0.238

Orbit Range: 2.62 AU - 4.26 AU

Year: 4327 Days

Day: 8.1 Hours

Environment

Temp: -216 °C

Axial Tilt: 38.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 78,692,646 km

• M1: 164,408 km (0.045 R)
• M2: 657,782 km (0.095 R)
• M3: 1,291,329 km (0.057 R)
• M4: 1,880,296 km (0.052 R)
• M5: 2,677,951 km (0.099 R)
• M6: 3,425,642 km (0.099 R)
• M7: 5,072,116 km (0.079 R)
• M8: 5,667,515 km (0.096 R)
• M9: 6,901,997 km (0.117 R)
• M10: 8,641,222 km (0.066 R)
• M11: 9,176,782 km (0.102 R)
• M12: 10,656,305 km (0.077 R)
• M13: 11,183,338 km (0.098 R)
• M14: 12,771,469 km (0.06 R)
• M15: 14,826,795 km (0.109 R)
• M16: 17,333,008 km (0.042 R)
• M17: 19,454,006 km (0.107 R)
• M18: 21,326,523 km (0.087 R)
• M19: 22,448,956 km (0.087 R)
• M20: 27,010,943 km (0.08 R)

Planet 5 - Ice Giant

Semi-Major Axis: 6.39 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 268.6

Radius: 7.2

Gravity: 5.18 G

Time & Orbit

Eccentricity (e): 0.108

Orbit Range: 5.7 AU - 7.08 AU

Year: 10956 Days

Day: 21.8 Hours

Environment

Temp: -226 °C

Axial Tilt: 29.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 78,692,646 km

• M1: 89,609 km (0.073 R)
• M2: 361,129 km (0.092 R)
• M3: 629,807 km (0.058 R)
• M4: 1,342,940 km (0.098 R)
• M5: 1,943,276 km (0.104 R)
• M6: 2,470,010 km (0.116 R)
• M7: 3,389,439 km (0.119 R)
• M8: 4,359,282 km (0.08 R)
• M9: 8,204,396 km (0.073 R)
• M10: 9,040,349 km (0.08 R)
• M11: 11,326,653 km (0.066 R)
• M12: 14,322,650 km (0.039 R)
• M13: 15,718,697 km (0.098 R)
• M14: 16,481,945 km (0.062 R)
• M15: 18,289,387 km (0.101 R)
• M16: 19,710,716 km (0.088 R)
• M17: 20,003,479 km (0.064 R)
• M18: 25,523,641 km (0.105 R)
• M19: 25,959,120 km (0.085 R)
• M20: 28,026,563 km (0.103 R)
• M21: 34,777,017 km (0.062 R)
• M22: 35,961,982 km (0.053 R)

Planet 6 - Ice Giant

Semi-Major Axis: 8.29 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 840.4

Radius: 7

Gravity: 17.15 G

Time & Orbit

Eccentricity (e): 0.141

Orbit Range: 7.12 AU - 9.46 AU

Year: 16189 Days

Day: 16.6 Hours

Environment

Temp: -233 °C

Axial Tilt: 32.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 78,692,646 km

• M1: 183,706 km (0.101 R)
• M2: 534,513 km (0.115 R)
• M3: 1,088,474 km (0.1 R)
• M4: 3,523,030 km (0.109 R)
• M5: 4,182,607 km (0.083 R)
• M6: 4,992,829 km (0.118 R)
• M7: 5,627,124 km (0.079 R)
• M8: 9,515,472 km (0.119 R)
• M9: 11,275,491 km (0.093 R)
• M10: 12,297,843 km (0.106 R)
• M11: 12,562,780 km (0.12 R)
• M12: 14,896,507 km (0.094 R)
• M13: 19,671,970 km (0.038 R)
• M14: 24,323,716 km (0.096 R)
• M15: 24,846,860 km (0.09 R)
• M16: 28,488,970 km (0.096 R)
• M17: 29,540,792 km (0.096 R)
• M18: 35,994,744 km (0.071 R)
• M19: 38,621,233 km (0.061 R)
• M20: 54,040,286 km (0.05 R)
• M21: 58,964,450 km (0.067 R)
• M22: 59,340,539 km (0.094 R)

Planet 7 - Ice Giant

Semi-Major Axis: 10.28 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 606.5

Radius: 5.3

Gravity: 21.59 G

Time & Orbit

Eccentricity (e): 0.194

Orbit Range: 8.29 AU - 12.27 AU

Year: 22355 Days

Day: 18.9 Hours

Environment

Temp: -236 °C

Axial Tilt: 2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (43)

Outer Limit: 78,692,646 km

• M1: 67,618 km (0.112 R)
• M2: 596,746 km (0.085 R)
• M3: 937,829 km (0.037 R)
• M4: 1,339,200 km (0.12 R)
• M5: 2,523,417 km (0.105 R)
• M6: 3,466,033 km (0.029 R)
• M7: 3,643,307 km (0.108 R)
• M8: 4,346,417 km (0.059 R)
• M9: 4,729,985 km (0.116 R)
• M10: 6,718,141 km (0.077 R)
• M11: 7,183,091 km (0.051 R)
• M12: 7,819,331 km (0.102 R)
• M13: 9,487,198 km (0.081 R)
• M14: 10,252,391 km (0.042 R)
• M15: 10,931,266 km (0.096 R)
• M16: 13,005,291 km (0.041 R)
• M17: 13,218,917 km (0.111 R)
• M18: 13,580,196 km (0.061 R)
• M19: 13,874,006 km (0.09 R)
• M20: 15,091,732 km (0.116 R)
• M21: 16,711,877 km (0.032 R)
• M22: 17,477,370 km (0.112 R)
• M23: 17,650,604 km (0.069 R)
• M24: 22,262,258 km (0.051 R)
• M25: 22,568,185 km (0.096 R)
• M26: 23,292,837 km (0.108 R)
• M27: 24,788,666 km (0.088 R)
• M28: 25,337,990 km (0.117 R)
• M29: 29,169,341 km (0.117 R)
• M30: 38,538,207 km (0.068 R)
• M31: 42,006,334 km (0.095 R)
• M32: 42,786,786 km (0.11 R)
• M33: 43,101,690 km (0.081 R)
• M34: 49,382,257 km (0.117 R)
• M35: 52,020,565 km (0.1 R)
• M36: 57,384,846 km (0.101 R)
• M37: 58,152,432 km (0.112 R)
• M38: 65,999,289 km (0.067 R)
• M39: 67,053,655 km (0.074 R)
• M40: 69,629,880 km (0.077 R)
• M41: 71,162,660 km (0.116 R)
• M42: 75,895,937 km (0.052 R)
• M43: 76,126,467 km (0.102 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 279 - 15,092 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit