🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.55 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.36

Radius: 1.62

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.135

Orbit Range: 0.48 AU - 0.62 AU

Year: 263 Days

Day: 46.4 Hours

Environment

Temp: -118 °C

Axial Tilt: 14.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 72,516,445 km

• M1: 50,115 km (0.088 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.66 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.64

Radius: 1.47

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.005

Orbit Range: 0.66 AU - 0.66 AU

Year: 346 Days

Day: 22.5 Hours

Environment

Temp: -129 °C

Axial Tilt: 19.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 72,516,445 km

• M1: 388,506 km (0.091 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 29.3

Radius: 12.8

Gravity: 0.18 G

Time & Orbit

Eccentricity (e): 0.191

Orbit Range: 0.69 AU - 1.01 AU

Year: 506 Days

Day: 11.9 Hours

Environment

Temp: -148 °C

Axial Tilt: 38.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 72,516,445 km

• M1: 159,172 km (0.053 R)
• M2: 577,747 km (0.079 R)
• M3: 1,401,582 km (0.095 R)
• M4: 1,853,667 km (0.117 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.49 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 577.5

Radius: 9.1

Gravity: 6.97 G

Time & Orbit

Eccentricity (e): 0.109

Orbit Range: 2.22 AU - 2.76 AU

Year: 2537 Days

Day: 12.3 Hours

Environment

Temp: -205 °C

Axial Tilt: 8.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 72,516,445 km

• M1: 113,246 km (0.098 R)
• M2: 401,820 km (0.065 R)
• M3: 693,087 km (0.055 R)
• M4: 1,207,704 km (0.109 R)
• M5: 1,507,348 km (0.098 R)
• M6: 1,891,515 km (0.061 R)
• M7: 2,797,929 km (0.107 R)
• M8: 3,523,628 km (0.078 R)
• M9: 4,997,317 km (0.103 R)
• M10: 6,272,190 km (0.074 R)
• M11: 6,788,153 km (0.079 R)
• M12: 7,332,240 km (0.117 R)
• M13: 7,967,134 km (0.072 R)
• M14: 9,415,690 km (0.12 R)
• M15: 10,092,620 km (0.093 R)
• M16: 11,266,365 km (0.076 R)
• M17: 11,865,804 km (0.092 R)
• M18: 12,570,859 km (0.06 R)
• M19: 13,524,246 km (0.057 R)
• M20: 14,293,478 km (0.043 R)
• M21: 14,948,567 km (0.113 R)
• M22: 16,218,055 km (0.09 R)
• M23: 17,877,544 km (0.068 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 438.4

Radius: 12.6

Gravity: 2.76 G

Time & Orbit

Eccentricity (e): 0.068

Orbit Range: 3.77 AU - 4.33 AU

Year: 5263 Days

Day: 7.4 Hours

Environment

Temp: -205 °C

Axial Tilt: 14.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 72,516,445 km

• M1: 156,629 km (0.09 R)
• M2: 627,114 km (0.08 R)
• M3: 1,025,643 km (0.119 R)
• M4: 2,360,056 km (0.116 R)
• M5: 3,325,261 km (0.073 R)
• M6: 4,187,244 km (0.081 R)
• M7: 5,010,332 km (0.099 R)
• M8: 5,543,349 km (0.089 R)
• M9: 6,202,777 km (0.057 R)
• M10: 7,339,720 km (0.053 R)
• M11: 8,573,604 km (0.089 R)
• M12: 9,338,348 km (0.114 R)
• M13: 9,982,367 km (0.106 R)
• M14: 13,155,188 km (0.047 R)
• M15: 13,708,550 km (0.106 R)
• M16: 14,808,244 km (0.107 R)
• M17: 15,297,130 km (0.112 R)
• M18: 17,481,708 km (0.086 R)
• M19: 18,774,383 km (0.1 R)
• M20: 19,801,373 km (0.049 R)
• M21: 21,827,377 km (0.104 R)
• M22: 23,034,931 km (0.053 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 761.3

Radius: 14.2

Gravity: 3.78 G

Time & Orbit

Eccentricity (e): 0.056

Orbit Range: 4.96 AU - 5.54 AU

Year: 7767 Days

Day: 9 Hours

Environment

Temp: -216 °C

Axial Tilt: 34.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 72,516,445 km

• M1: 176,675 km (0.086 R)
• M2: 1,093,710 km (0.06 R)
• M3: 1,804,150 km (0.108 R)
• M4: 2,344,498 km (0.082 R)
• M5: 3,293,846 km (0.109 R)
• M6: 3,932,928 km (0.117 R)
• M7: 4,796,706 km (0.041 R)
• M8: 5,685,617 km (0.048 R)
• M9: 6,502,271 km (0.038 R)
• M10: 8,285,478 km (0.113 R)
• M11: 8,844,077 km (0.081 R)
• M12: 9,893,954 km (0.065 R)
• M13: 10,873,222 km (0.112 R)
• M14: 11,702,293 km (0.075 R)
• M15: 13,312,266 km (0.101 R)
• M16: 14,877,359 km (0.111 R)
• M17: 16,900,071 km (0.074 R)
• M18: 19,397,608 km (0.117 R)
• M19: 20,462,446 km (0.114 R)
• M20: 21,088,213 km (0.089 R)
• M21: 25,561,489 km (0.108 R)
• M22: 28,067,403 km (0.038 R)
• M23: 30,529,784 km (0.118 R)
• M24: 31,450,559 km (0.051 R)
• M25: 31,970,112 km (0.109 R)
• M26: 36,677,209 km (0.114 R)
• M27: 37,951,633 km (0.07 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.75 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 398.4

Radius: 4

Gravity: 24.9 G

Time & Orbit

Eccentricity (e): 0.194

Orbit Range: 6.25 AU - 9.25 AU

Year: 13931 Days

Day: 15 Hours

Environment

Temp: -218 °C

Axial Tilt: 28 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 72,516,445 km

• M1: 49,966 km (0.034 R)
• M2: 316,998 km (0.09 R)
• M3: 504,893 km (0.097 R)
• M4: 713,432 km (0.087 R)
• M5: 1,253,181 km (0.091 R)
• M6: 1,698,833 km (0.063 R)
• M7: 2,044,105 km (0.083 R)
• M8: 2,187,270 km (0.061 R)
• M9: 3,007,216 km (0.079 R)
• M10: 3,796,495 km (0.115 R)
• M11: 4,097,186 km (0.114 R)
• M12: 4,684,358 km (0.085 R)
• M13: 4,871,056 km (0.114 R)
• M14: 5,259,113 km (0.065 R)
• M15: 6,133,363 km (0.058 R)
• M16: 6,319,313 km (0.098 R)
• M17: 6,624,493 km (0.056 R)
• M18: 7,856,880 km (0.068 R)
• M19: 8,899,428 km (0.088 R)
• M20: 9,627,221 km (0.104 R)
• M21: 9,777,418 km (0.056 R)
• M22: 10,393,761 km (0.101 R)
• M23: 11,255,295 km (0.105 R)
• M24: 14,844,148 km (0.078 R)
• M25: 18,970,506 km (0.107 R)
• M26: 19,604,651 km (0.106 R)
• M27: 21,506,489 km (0.103 R)
• M28: 21,763,199 km (0.119 R)
• M29: 24,537,791 km (0.119 R)
• M30: 30,667,863 km (0.072 R)
• M31: 42,660,675 km (0.101 R)
• M32: 49,458,851 km (0.083 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.9 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 549.7

Radius: 6.7

Gravity: 12.25 G

Time & Orbit

Eccentricity (e): 0.228

Orbit Range: 6.1 AU - 9.7 AU

Year: 14337 Days

Day: 16.8 Hours

Environment

Temp: -222 °C

Axial Tilt: 39.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 72,516,445 km

• M1: 84,972 km (0.116 R)
• M2: 584,928 km (0.058 R)
• M3: 1,351,467 km (0.041 R)
• M4: 2,365,442 km (0.096 R)
• M5: 5,696,238 km (0.119 R)
• M6: 8,454,972 km (0.074 R)
• M7: 11,756,897 km (0.109 R)
• M8: 12,055,793 km (0.102 R)
• M9: 14,089,576 km (0.084 R)
• M10: 21,103,173 km (0.11 R)
• M11: 23,940,895 km (0.025 R)
• M12: 24,324,614 km (0.12 R)
• M13: 25,700,166 km (0.119 R)
• M14: 27,334,822 km (0.076 R)
• M15: 35,553,580 km (0.095 R)
• M16: 35,802,810 km (0.118 R)
• M17: 39,016,920 km (0.07 R)
• M18: 43,832,625 km (0.074 R)
• M19: 47,053,916 km (0.085 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.04 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 756.5

Radius: 7.9

Gravity: 12.12 G

Time & Orbit

Eccentricity (e): 0.17

Orbit Range: 6.67 AU - 9.41 AU

Year: 14720 Days

Day: 17.1 Hours

Environment

Temp: -216 °C

Axial Tilt: 20.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 72,516,445 km

• M1: 98,286 km (0.118 R)
• M2: 350,807 km (0.117 R)
• M3: 817,702 km (0.054 R)
• M4: 1,172,249 km (0.081 R)
• M5: 1,809,386 km (0.055 R)
• M6: 2,080,009 km (0.079 R)
• M7: 2,526,409 km (0.06 R)
• M8: 4,256,957 km (0.067 R)
• M9: 4,807,028 km (0.029 R)
• M10: 5,259,113 km (0.051 R)
• M11: 5,514,028 km (0.043 R)
• M12: 7,537,489 km (0.106 R)
• M13: 9,361,236 km (0.112 R)
• M14: 10,122,241 km (0.067 R)
• M15: 11,582,765 km (0.118 R)
• M16: 19,008,504 km (0.114 R)
• M17: 19,785,515 km (0.087 R)
• M18: 20,315,092 km (0.109 R)
• M19: 22,912,859 km (0.109 R)
• M20: 23,203,677 km (0.118 R)
• M21: 27,429,368 km (0.077 R)
• M22: 32,020,377 km (0.04 R)
• M23: 44,469,613 km (0.08 R)
• M24: 60,347,482 km (0.071 R)
• M25: 62,777,101 km (0.096 R)
• M26: 63,156,631 km (0.106 R)

Planet 10 - Ice Giant

Semi-Major Axis: 8.48 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 933

Radius: 4.8

Gravity: 40.49 G

Time & Orbit

Eccentricity (e): 0.071

Orbit Range: 7.88 AU - 9.08 AU

Year: 15944 Days

Day: 21.2 Hours

Environment

Temp: -232 °C

Axial Tilt: 36.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 72,516,445 km

• M1: 59,690 km (0.119 R)
• M2: 362,027 km (0.111 R)
• M3: 541,095 km (0.106 R)
• M4: 863,180 km (0.055 R)
• M5: 1,036,564 km (0.091 R)
• M6: 1,219,223 km (0.099 R)
• M7: 1,919,789 km (0.114 R)
• M8: 2,218,237 km (0.04 R)
• M9: 2,456,247 km (0.079 R)
• M10: 2,711,162 km (0.083 R)
• M11: 4,291,963 km (0.088 R)
• M12: 4,696,924 km (0.094 R)
• M13: 5,582,693 km (0.103 R)
• M14: 5,740,519 km (0.072 R)
• M15: 6,106,435 km (0.095 R)
• M16: 8,072,899 km (0.059 R)
• M17: 9,784,748 km (0.111 R)
• M18: 10,014,381 km (0.12 R)
• M19: 10,908,078 km (0.078 R)
• M20: 17,579,994 km (0.077 R)
• M21: 19,958,151 km (0.088 R)
• M22: 28,947,338 km (0.099 R)
• M23: 30,383,477 km (0.106 R)
• M24: 34,444,162 km (0.075 R)
• M25: 37,296,844 km (0.067 R)
• M26: 44,243,869 km (0.075 R)
• M27: 46,954,732 km (0.109 R)
• M28: 48,600,010 km (0.112 R)
• M29: 49,437,010 km (0.032 R)
• M30: 49,605,457 km (0.067 R)
• M31: 50,624,667 km (0.06 R)
• M32: 51,657,790 km (0.114 R)
• M33: 54,122,714 km (0.116 R)
• M34: 61,012,594 km (0.037 R)
• M35: 64,164,771 km (0.11 R)
• M36: 65,577,274 km (0.032 R)
• M37: 68,464,363 km (0.041 R)
• M38: 70,577,732 km (0.088 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: 467 - 11,992 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit