🌌 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: 0.59 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.39

Radius: 1.63

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.193

Orbit Range: 0.48 AU - 0.7 AU

Year: 297 Days

Day: 14.7 Hours

Environment

Temp: -129 °C

Axial Tilt: 42.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 310.6

Radius: 12.9

Gravity: 1.87 G

Time & Orbit

Eccentricity (e): 0.077

Orbit Range: 0.65 AU - 0.75 AU

Year: 384 Days

Day: 14 Hours

Environment

Temp: -137 °C

Axial Tilt: 22 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 90,983,935 km

• M1: 161,267 km (0.101 R)
• M2: 603,627 km (0.095 R)
• M3: 1,035,816 km (0.119 R)
• M4: 1,514,080 km (0.115 R)
• M5: 1,944,623 km (0.115 R)
• M6: 2,466,121 km (0.076 R)
• M7: 3,051,348 km (0.117 R)
• M8: 4,120,673 km (0.105 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 735.1

Radius: 11.7

Gravity: 5.37 G

Time & Orbit

Eccentricity (e): 0.195

Orbit Range: 0.65 AU - 0.97 AU

Year: 478 Days

Day: 7.2 Hours

Environment

Temp: -145 °C

Axial Tilt: 32.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 90,983,935 km

• M1: 145,559 km (0.092 R)
• M2: 526,136 km (0.077 R)
• M3: 1,054,815 km (0.051 R)
• M4: 1,450,202 km (0.098 R)
• M5: 1,945,969 km (0.09 R)
• M6: 2,465,373 km (0.117 R)
• M7: 3,064,662 km (0.095 R)
• M8: 3,630,142 km (0.116 R)
• M9: 4,585,923 km (0.087 R)
• M10: 5,530,035 km (0.109 R)
• M11: 5,949,507 km (0.081 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 85.2

Radius: 10.9

Gravity: 0.72 G

Time & Orbit

Eccentricity (e): 0.03

Orbit Range: 0.97 AU - 1.03 AU

Year: 656 Days

Day: 9.7 Hours

Environment

Temp: -166 °C

Axial Tilt: 1.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 90,983,935 km

• M1: 135,685 km (0.119 R)
• M2: 642,672 km (0.09 R)
• M3: 1,374,954 km (0.115 R)
• M4: 1,720,226 km (0.06 R)
• M5: 2,102,448 km (0.111 R)
• M6: 2,730,460 km (0.034 R)
• M7: 3,315,538 km (0.069 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 800.2

Radius: 9.2

Gravity: 9.45 G

Time & Orbit

Eccentricity (e): 0.184

Orbit Range: 1.1 AU - 1.6 AU

Year: 1029 Days

Day: 12.4 Hours

Environment

Temp: -172 °C

Axial Tilt: 46.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 90,983,935 km

• M1: 115,041 km (0.063 R)
• M2: 467,194 km (0.082 R)
• M3: 950,694 km (0.095 R)
• M4: 1,510,639 km (0.05 R)
• M5: 1,909,916 km (0.109 R)
• M6: 2,299,469 km (0.109 R)
• M7: 3,458,553 km (0.113 R)
• M8: 4,382,170 km (0.041 R)
• M9: 4,761,251 km (0.107 R)
• M10: 5,122,979 km (0.071 R)
• M11: 5,421,427 km (0.062 R)
• M12: 5,710,450 km (0.085 R)
• M13: 6,851,882 km (0.09 R)
• M14: 7,565,164 km (0.117 R)
• M15: 7,926,892 km (0.106 R)
• M16: 8,518,701 km (0.094 R)
• M17: 10,158,144 km (0.07 R)
• M18: 10,888,930 km (0.091 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 785.7

Radius: 9.7

Gravity: 8.35 G

Time & Orbit

Eccentricity (e): 0.046

Orbit Range: 1.56 AU - 1.7 AU

Year: 1365 Days

Day: 9.9 Hours

Environment

Temp: -179 °C

Axial Tilt: 19.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 90,983,935 km

• M1: 120,725 km (0.071 R)
• M2: 598,691 km (0.109 R)
• M3: 908,657 km (0.117 R)
• M4: 1,266,645 km (0.076 R)
• M5: 1,798,316 km (0.116 R)
• M6: 2,231,103 km (0.061 R)
• M7: 3,010,956 km (0.084 R)
• M8: 3,339,024 km (0.048 R)
• M9: 4,156,876 km (0.109 R)
• M10: 4,858,640 km (0.103 R)
• M11: 5,291,127 km (0.063 R)
• M12: 5,637,596 km (0.119 R)
• M13: 5,999,174 km (0.068 R)
• M14: 6,304,503 km (0.094 R)
• M15: 7,178,304 km (0.104 R)
• M16: 7,658,065 km (0.069 R)
• M17: 8,801,292 km (0.072 R)
• M18: 10,486,362 km (0.044 R)
• M19: 11,245,272 km (0.075 R)
• M20: 12,226,335 km (0.099 R)
• M21: 12,989,134 km (0.117 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 526.6

Radius: 11.1

Gravity: 4.27 G

Time & Orbit

Eccentricity (e): 0.131

Orbit Range: 2.87 AU - 3.73 AU

Year: 3933 Days

Day: 12.7 Hours

Environment

Temp: -200 °C

Axial Tilt: 38.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 90,983,935 km

• M1: 138,378 km (0.096 R)
• M2: 697,724 km (0.078 R)
• M3: 1,204,113 km (0.068 R)
• M4: 1,729,501 km (0.118 R)
• M5: 2,316,224 km (0.107 R)
• M6: 3,014,547 km (0.114 R)
• M7: 4,252,918 km (0.065 R)
• M8: 4,733,426 km (0.114 R)
• M9: 5,148,860 km (0.072 R)
• M10: 6,367,185 km (0.11 R)
• M11: 6,752,698 km (0.027 R)
• M12: 7,216,900 km (0.114 R)
• M13: 7,636,373 km (0.108 R)
• M14: 8,774,962 km (0.097 R)
• M15: 10,182,229 km (0.104 R)
• M16: 11,300,324 km (0.089 R)
• M17: 11,822,720 km (0.087 R)
• M18: 14,886,335 km (0.09 R)
• M19: 15,621,010 km (0.109 R)
• M20: 16,712,177 km (0.119 R)
• M21: 20,546,520 km (0.106 R)
• M22: 20,998,604 km (0.043 R)
• M23: 21,391,299 km (0.097 R)
• M24: 22,599,152 km (0.077 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 941.8

Radius: 14.1

Gravity: 4.74 G

Time & Orbit

Eccentricity (e): 0.028

Orbit Range: 4.96 AU - 5.24 AU

Year: 7556 Days

Day: 12.8 Hours

Environment

Temp: -220 °C

Axial Tilt: 45.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 90,983,935 km

• M1: 175,329 km (0.069 R)
• M2: 791,822 km (0.119 R)
• M3: 1,249,441 km (0.086 R)
• M4: 1,816,268 km (0.055 R)
• M5: 2,299,319 km (0.074 R)
• M6: 4,835,751 km (0.095 R)
• M7: 5,420,230 km (0.073 R)
• M8: 6,367,633 km (0.037 R)
• M9: 7,826,811 km (0.08 R)
• M10: 8,417,274 km (0.109 R)
• M11: 10,620,402 km (0.086 R)
• M12: 12,894,140 km (0.111 R)
• M13: 15,087,394 km (0.1 R)
• M14: 17,519,407 km (0.118 R)
• M15: 21,888,412 km (0.098 R)
• M16: 22,892,962 km (0.047 R)
• M17: 26,746,454 km (0.078 R)
• M18: 27,508,356 km (0.102 R)
• M19: 27,991,856 km (0.105 R)
• M20: 30,289,380 km (0.104 R)
• M21: 30,804,894 km (0.112 R)
• M22: 31,747,810 km (0.117 R)
• M23: 32,818,033 km (0.086 R)
• M24: 37,222,643 km (0.073 R)

Planet 9 - Gas Giant

Semi-Major Axis: 5.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 763.7

Radius: 12.3

Gravity: 5.05 G

Time & Orbit

Eccentricity (e): 0.043

Orbit Range: 5.42 AU - 5.9 AU

Year: 8834 Days

Day: 10 Hours

Environment

Temp: -223 °C

Axial Tilt: 42.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 90,983,935 km

• M1: 153,039 km (0.058 R)
• M2: 729,888 km (0.078 R)
• M3: 1,208,751 km (0.115 R)
• M4: 2,388,928 km (0.094 R)
• M5: 4,364,368 km (0.092 R)
• M6: 4,857,592 km (0.098 R)
• M7: 6,865,944 km (0.117 R)
• M8: 10,251,942 km (0.095 R)
• M9: 10,709,412 km (0.055 R)
• M10: 11,940,752 km (0.078 R)
• M11: 15,661,850 km (0.083 R)
• M12: 17,245,942 km (0.104 R)
• M13: 19,779,980 km (0.068 R)
• M14: 23,766,464 km (0.108 R)
• M15: 28,061,419 km (0.102 R)
• M16: 28,657,267 km (0.108 R)
• M17: 30,391,555 km (0.088 R)
• M18: 33,288,369 km (0.119 R)
• M19: 39,130,165 km (0.07 R)
• M20: 43,471,496 km (0.097 R)
• M21: 44,269,451 km (0.109 R)

Planet 10 - Ice Giant

Semi-Major Axis: 10.34 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 984.7

Radius: 5.5

Gravity: 32.55 G

Time & Orbit

Eccentricity (e): 0.221

Orbit Range: 8.05 AU - 12.63 AU

Year: 21812 Days

Day: 23.6 Hours

Environment

Temp: -232 °C

Axial Tilt: 16.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 90,983,935 km

• M1: 68,815 km (0.107 R)
• M2: 259,104 km (0.112 R)
• M3: 499,507 km (0.093 R)
• M4: 732,282 km (0.087 R)
• M5: 997,369 km (0.091 R)
• M6: 1,233,285 km (0.054 R)
• M7: 1,938,639 km (0.118 R)
• M8: 2,547,801 km (0.11 R)
• M9: 2,883,050 km (0.084 R)
• M10: 3,966,438 km (0.052 R)
• M11: 4,710,987 km (0.092 R)
• M12: 4,901,275 km (0.098 R)
• M13: 6,334,423 km (0.12 R)
• M14: 7,246,521 km (0.058 R)
• M15: 9,689,454 km (0.115 R)
• M16: 10,185,969 km (0.07 R)
• M17: 12,559,040 km (0.061 R)
• M18: 12,925,705 km (0.076 R)
• M19: 23,789,801 km (0.087 R)
• M20: 26,684,371 km (0.083 R)
• M21: 29,547,075 km (0.089 R)
• M22: 32,333,934 km (0.055 R)
• M23: 38,731,038 km (0.12 R)
• M24: 39,820,859 km (0.074 R)
• M25: 40,452,611 km (0.11 R)
• M26: 51,118,939 km (0.056 R)
• M27: 53,762,184 km (0.055 R)
• M28: 58,300,085 km (0.107 R)
• M29: 58,503,090 km (0.068 R)
• M30: 63,086,918 km (0.088 R)
• M31: 66,788,717 km (0.116 R)
• M32: 71,094,294 km (0.083 R)
• M33: 74,621,512 km (0.094 R)
• M34: 80,504,598 km (0.103 R)
• M35: 87,218,700 km (0.053 R)
• M36: 89,357,202 km (0.058 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 239 - 17,363 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit