🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.38 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 698.8

Radius: 8.6

Gravity: 9.45 G

Time & Orbit

Eccentricity (e): 0.244

Orbit Range: 0.57 AU - 0.93 AU

Year: 413 Days

Day: 6.7 Hours

Environment

Temp: -144 °C

Axial Tilt: 36.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 71,920,746 km

• M1: 108,159 km (0.106 R)
• M2: 442,511 km (0.083 R)
• M3: 724,951 km (0.09 R)
• M4: 1,079,498 km (0.101 R)
• M5: 1,435,990 km (0.057 R)
• M6: 2,317,121 km (0.115 R)
• M7: 2,680,046 km (0.105 R)
• M8: 3,192,568 km (0.119 R)
• M9: 3,962,848 km (0.045 R)
• M10: 5,765,053 km (0.072 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 526.7

Radius: 11.7

Gravity: 3.85 G

Time & Orbit

Eccentricity (e): 0.132

Orbit Range: 0.89 AU - 1.15 AU

Year: 655 Days

Day: 13.2 Hours

Environment

Temp: -165 °C

Axial Tilt: 8.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 71,920,746 km

• M1: 146,157 km (0.072 R)
• M2: 663,317 km (0.028 R)
• M3: 1,035,068 km (0.112 R)
• M4: 2,201,033 km (0.047 R)
• M5: 2,798,228 km (0.101 R)
• M6: 3,437,011 km (0.095 R)
• M7: 4,156,726 km (0.099 R)
• M8: 4,575,900 km (0.084 R)
• M9: 5,677,688 km (0.073 R)
• M10: 6,886,738 km (0.114 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 389

Radius: 11

Gravity: 3.21 G

Time & Orbit

Eccentricity (e): 0.214

Orbit Range: 0.91 AU - 1.41 AU

Year: 794 Days

Day: 11 Hours

Environment

Temp: -156 °C

Axial Tilt: 49.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 71,920,746 km

• M1: 136,882 km (0.12 R)
• M2: 483,949 km (0.09 R)
• M3: 942,915 km (0.103 R)
• M4: 1,295,667 km (0.111 R)
• M5: 1,645,427 km (0.12 R)
• M6: 2,131,919 km (0.114 R)
• M7: 2,857,170 km (0.044 R)
• M8: 3,699,256 km (0.084 R)
• M9: 4,149,396 km (0.074 R)
• M10: 4,557,350 km (0.108 R)
• M11: 5,228,446 km (0.116 R)
• M12: 5,705,513 km (0.07 R)
• M13: 6,953,309 km (0.096 R)
• M14: 7,313,391 km (0.115 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.31 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 425.9

Radius: 11.7

Gravity: 3.11 G

Time & Orbit

Eccentricity (e): 0.052

Orbit Range: 1.24 AU - 1.38 AU

Year: 953 Days

Day: 14.3 Hours

Environment

Temp: -168 °C

Axial Tilt: 15.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 71,920,746 km

• M1: 145,559 km (0.104 R)
• M2: 577,448 km (0.06 R)
• M3: 978,370 km (0.07 R)
• M4: 1,416,243 km (0.113 R)
• M5: 2,069,088 km (0.052 R)
• M6: 2,842,808 km (0.079 R)
• M7: 4,051,858 km (0.105 R)
• M8: 4,442,159 km (0.116 R)
• M9: 5,409,160 km (0.076 R)
• M10: 6,553,284 km (0.068 R)
• M11: 8,141,116 km (0.118 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 182.8

Radius: 8.8

Gravity: 2.36 G

Time & Orbit

Eccentricity (e): 0.16

Orbit Range: 1.34 AU - 1.86 AU

Year: 1287 Days

Day: 14.1 Hours

Environment

Temp: -189 °C

Axial Tilt: 4.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 71,920,746 km

• M1: 109,506 km (0.1 R)
• M2: 511,924 km (0.06 R)
• M3: 797,506 km (0.088 R)
• M4: 1,793,230 km (0.069 R)
• M5: 2,349,435 km (0.078 R)
• M6: 3,214,409 km (0.068 R)
• M7: 4,036,151 km (0.114 R)
• M8: 4,496,463 km (0.103 R)
• M9: 4,789,226 km (0.047 R)
• M10: 5,199,424 km (0.052 R)
• M11: 5,632,809 km (0.086 R)
• M12: 6,208,461 km (0.025 R)
• M13: 7,101,112 km (0.082 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 319.5

Radius: 13.5

Gravity: 1.75 G

Time & Orbit

Eccentricity (e): 0.026

Orbit Range: 3.79 AU - 3.99 AU

Year: 4878 Days

Day: 10.9 Hours

Environment

Temp: -204 °C

Axial Tilt: 3.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 71,920,746 km

• M1: 167,998 km (0.045 R)
• M2: 608,115 km (0.053 R)
• M3: 1,545,346 km (0.105 R)
• M4: 2,321,909 km (0.087 R)
• M5: 2,809,149 km (0.106 R)
• M6: 3,439,255 km (0.095 R)
• M7: 4,205,346 km (0.063 R)
• M8: 4,745,992 km (0.095 R)
• M9: 5,913,155 km (0.032 R)
• M10: 6,772,146 km (0.115 R)
• M11: 8,954,629 km (0.075 R)
• M12: 9,472,088 km (0.102 R)
• M13: 10,325,544 km (0.113 R)
• M14: 12,410,939 km (0.058 R)
• M15: 14,112,614 km (0.059 R)
• M16: 14,865,690 km (0.062 R)
• M17: 16,126,351 km (0.119 R)
• M18: 18,443,173 km (0.086 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 676.4

Radius: 13

Gravity: 4 G

Time & Orbit

Eccentricity (e): 0.053

Orbit Range: 4.61 AU - 5.13 AU

Year: 6833 Days

Day: 11.4 Hours

Environment

Temp: -220 °C

Axial Tilt: 8.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 71,920,746 km

• M1: 162,164 km (0.093 R)
• M2: 664,963 km (0.1 R)
• M3: 1,314,068 km (0.088 R)
• M4: 1,742,366 km (0.076 R)
• M5: 2,382,496 km (0.12 R)
• M6: 2,796,732 km (0.092 R)
• M7: 3,965,092 km (0.108 R)
• M8: 4,552,562 km (0.082 R)
• M9: 5,197,628 km (0.068 R)
• M10: 5,999,473 km (0.057 R)
• M11: 6,636,311 km (0.103 R)
• M12: 7,134,173 km (0.113 R)
• M13: 8,366,560 km (0.078 R)
• M14: 10,147,074 km (0.101 R)
• M15: 11,399,956 km (0.084 R)
• M16: 13,865,479 km (0.076 R)
• M17: 14,622,294 km (0.12 R)
• M18: 16,927,897 km (0.026 R)
• M19: 17,860,340 km (0.103 R)
• M20: 19,322,959 km (0.089 R)
• M21: 21,472,082 km (0.09 R)
• M22: 22,091,866 km (0.071 R)
• M23: 23,940,895 km (0.119 R)
• M24: 26,770,988 km (0.057 R)
• M25: 28,964,392 km (0.032 R)
• M26: 31,473,298 km (0.092 R)
• M27: 34,228,591 km (0.047 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.14 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 549

Radius: 6.4

Gravity: 13.4 G

Time & Orbit

Eccentricity (e): 0.248

Orbit Range: 7.63 AU - 12.65 AU

Year: 20530 Days

Day: 17.6 Hours

Environment

Temp: -236 °C

Axial Tilt: 3.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 71,920,746 km

• M1: 96,640 km (0.073 R)
• M2: 426,354 km (0.089 R)
• M3: 908,807 km (0.075 R)
• M4: 1,509,443 km (0.116 R)
• M5: 2,325,050 km (0.1 R)
• M6: 2,568,595 km (0.112 R)
• M7: 3,159,806 km (0.054 R)
• M8: 7,730,470 km (0.073 R)
• M9: 8,326,318 km (0.112 R)
• M10: 9,167,956 km (0.048 R)
• M11: 10,534,682 km (0.059 R)
• M12: 11,392,027 km (0.063 R)
• M13: 15,597,224 km (0.086 R)
• M14: 16,226,283 km (0.095 R)
• M15: 18,648,721 km (0.085 R)
• M16: 19,089,436 km (0.109 R)
• M17: 22,371,165 km (0.116 R)
• M18: 23,577,522 km (0.052 R)
• M19: 27,797,977 km (0.117 R)
• M20: 29,309,514 km (0.117 R)
• M21: 33,005,329 km (0.103 R)
• M22: 33,520,544 km (0.104 R)
• M23: 35,634,811 km (0.095 R)
• M24: 35,905,135 km (0.106 R)
• M25: 38,827,379 km (0.113 R)
• M26: 39,257,324 km (0.104 R)
• M27: 41,009,115 km (0.032 R)
• M28: 48,372,771 km (0.115 R)
• M29: 49,037,284 km (0.037 R)
• M30: 59,180,170 km (0.078 R)
• M31: 64,839,308 km (0.076 R)
• M32: 68,110,714 km (0.12 R)
• M33: 68,318,804 km (0.025 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 330 - 11,235 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit