🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.4 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 367.1

Radius: 15

Gravity: 1.63 G

Time & Orbit

Eccentricity (e): 0.109

Orbit Range: 0.7 AU - 0.88 AU

Year: 485 Days

Day: 6.3 Hours

Environment

Temp: -173 °C

Axial Tilt: 37 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 81,019,055 km

• M1: 186,698 km (0.091 R)
• M2: 681,717 km (0.081 R)
• M3: 1,358,349 km (0.081 R)
• M4: 1,964,669 km (0.056 R)
• M5: 2,828,148 km (0.068 R)
• M6: 3,393,179 km (0.112 R)
• M7: 4,238,556 km (0.111 R)
• M8: 4,711,884 km (0.082 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 552.8

Radius: 13.8

Gravity: 2.9 G

Time & Orbit

Eccentricity (e): 0.105

Orbit Range: 0.72 AU - 0.9 AU

Year: 503 Days

Day: 10.5 Hours

Environment

Temp: -155 °C

Axial Tilt: 34.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 81,019,055 km

• M1: 171,589 km (0.09 R)
• M2: 817,253 km (0.086 R)
• M3: 1,539,811 km (0.115 R)
• M4: 2,079,859 km (0.069 R)
• M5: 2,645,339 km (0.108 R)
• M6: 3,186,734 km (0.115 R)
• M7: 4,324,575 km (0.063 R)
• M8: 5,049,826 km (0.11 R)
• M9: 5,616,502 km (0.099 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 240.8

Radius: 9.5

Gravity: 2.67 G

Time & Orbit

Eccentricity (e): 0.073

Orbit Range: 0.78 AU - 0.9 AU

Year: 531 Days

Day: 13.2 Hours

Environment

Temp: -166 °C

Axial Tilt: 26 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 81,019,055 km

• M1: 118,930 km (0.115 R)
• M2: 441,912 km (0.108 R)
• M3: 762,650 km (0.055 R)
• M4: 1,090,568 km (0.053 R)
• M5: 1,584,541 km (0.114 R)
• M6: 1,880,595 km (0.09 R)
• M7: 2,434,855 km (0.085 R)
• M8: 2,852,682 km (0.117 R)
• M9: 3,178,506 km (0.101 R)
• M10: 3,620,867 km (0.096 R)
• M11: 3,930,086 km (0.107 R)
• M12: 4,282,837 km (0.029 R)
• M13: 4,602,079 km (0.112 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 321.4

Radius: 14.2

Gravity: 1.59 G

Time & Orbit

Eccentricity (e): 0.134

Orbit Range: 1.43 AU - 1.87 AU

Year: 1463 Days

Day: 14.5 Hours

Environment

Temp: -189 °C

Axial Tilt: 59.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 81,019,055 km

• M1: 176,525 km (0.061 R)
• M2: 646,861 km (0.105 R)
• M3: 1,252,284 km (0.099 R)
• M4: 1,980,825 km (0.097 R)
• M5: 2,564,108 km (0.056 R)
• M6: 3,046,112 km (0.105 R)
• M7: 3,544,871 km (0.04 R)
• M8: 4,066,220 km (0.105 R)
• M9: 4,889,756 km (0.097 R)
• M10: 5,658,988 km (0.08 R)
• M11: 6,847,095 km (0.11 R)
• M12: 8,299,989 km (0.045 R)
• M13: 8,919,175 km (0.105 R)
• M14: 9,396,392 km (0.101 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 628.2

Radius: 8.7

Gravity: 8.3 G

Time & Orbit

Eccentricity (e): 0.041

Orbit Range: 2.66 AU - 2.88 AU

Year: 3182 Days

Day: 8.5 Hours

Environment

Temp: -216 °C

Axial Tilt: 16 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 81,019,055 km

• M1: 108,159 km (0.111 R)
• M2: 418,126 km (0.076 R)
• M3: 714,928 km (0.103 R)
• M4: 1,359,994 km (0.032 R)
• M5: 1,697,038 km (0.105 R)
• M6: 1,985,912 km (0.073 R)
• M7: 2,350,631 km (0.099 R)
• M8: 2,973,258 km (0.066 R)
• M9: 3,490,268 km (0.113 R)
• M10: 5,058,951 km (0.109 R)
• M11: 5,743,511 km (0.106 R)
• M12: 6,869,534 km (0.077 R)
• M13: 7,548,260 km (0.084 R)
• M14: 8,069,309 km (0.034 R)
• M15: 8,754,318 km (0.111 R)
• M16: 9,111,109 km (0.036 R)
• M17: 12,324,471 km (0.11 R)
• M18: 12,727,637 km (0.077 R)
• M19: 13,047,178 km (0.045 R)
• M20: 13,702,716 km (0.047 R)
• M21: 14,379,796 km (0.107 R)
• M22: 14,726,714 km (0.084 R)
• M23: 15,231,906 km (0.077 R)
• M24: 15,696,407 km (0.115 R)
• M25: 16,011,311 km (0.102 R)
• M26: 17,257,760 km (0.064 R)
• M27: 18,335,164 km (0.062 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 639.4

Radius: 8.6

Gravity: 8.65 G

Time & Orbit

Eccentricity (e): 0.013

Orbit Range: 4.82 AU - 4.94 AU

Year: 7441 Days

Day: 12.3 Hours

Environment

Temp: -231 °C

Axial Tilt: 9.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 81,019,055 km

• M1: 106,962 km (0.112 R)
• M2: 604,824 km (0.117 R)
• M3: 896,091 km (0.091 R)
• M4: 1,174,044 km (0.119 R)
• M5: 1,794,277 km (0.086 R)
• M6: 2,065,797 km (0.098 R)
• M7: 3,533,053 km (0.032 R)
• M8: 4,140,719 km (0.091 R)
• M9: 4,902,023 km (0.066 R)
• M10: 5,531,830 km (0.12 R)
• M11: 5,981,072 km (0.081 R)
• M12: 7,025,714 km (0.082 R)
• M13: 9,293,469 km (0.11 R)
• M14: 10,936,053 km (0.098 R)
• M15: 12,708,638 km (0.07 R)
• M16: 14,246,504 km (0.061 R)
• M17: 14,968,464 km (0.076 R)
• M18: 15,588,397 km (0.115 R)
• M19: 16,550,461 km (0.108 R)
• M20: 20,342,468 km (0.104 R)
• M21: 20,796,498 km (0.049 R)
• M22: 21,257,409 km (0.078 R)
• M23: 22,519,865 km (0.112 R)
• M24: 24,934,076 km (0.07 R)
• M25: 26,159,282 km (0.1 R)
• M26: 33,728,336 km (0.059 R)
• M27: 34,364,576 km (0.119 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.91 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 378.1

Radius: 5.1

Gravity: 14.54 G

Time & Orbit

Eccentricity (e): 0.095

Orbit Range: 7.16 AU - 8.66 AU

Year: 15356 Days

Day: 16.4 Hours

Environment

Temp: -224 °C

Axial Tilt: 27.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 81,019,055 km

• M1: 63,429 km (0.056 R)
• M2: 258,056 km (0.104 R)
• M3: 533,765 km (0.111 R)
• M4: 860,786 km (0.107 R)
• M5: 1,069,625 km (0.073 R)
• M6: 1,378,245 km (0.074 R)
• M7: 1,575,864 km (0.038 R)
• M8: 1,976,188 km (0.078 R)
• M9: 2,732,704 km (0.081 R)
• M10: 3,881,018 km (0.037 R)
• M11: 5,251,484 km (0.105 R)
• M12: 5,844,190 km (0.108 R)
• M13: 6,597,266 km (0.106 R)
• M14: 7,498,294 km (0.112 R)
• M15: 12,702,804 km (0.105 R)
• M16: 12,947,845 km (0.038 R)
• M17: 13,258,560 km (0.105 R)
• M18: 13,510,632 km (0.119 R)
• M19: 15,159,650 km (0.115 R)
• M20: 17,535,414 km (0.033 R)
• M21: 17,839,247 km (0.045 R)
• M22: 18,614,164 km (0.068 R)
• M23: 18,930,414 km (0.115 R)
• M24: 21,503,647 km (0.097 R)
• M25: 21,677,180 km (0.065 R)
• M26: 23,373,471 km (0.105 R)
• M27: 25,933,240 km (0.088 R)
• M28: 26,228,695 km (0.114 R)
• M29: 34,484,254 km (0.095 R)
• M30: 34,722,115 km (0.099 R)
• M31: 44,175,503 km (0.066 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.19 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 282.9

Radius: 7.4

Gravity: 5.17 G

Time & Orbit

Eccentricity (e): 0.158

Orbit Range: 8.58 AU - 11.8 AU

Year: 22453 Days

Day: 19.9 Hours

Environment

Temp: -231 °C

Axial Tilt: 52 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 81,019,055 km

• M1: 95,593 km (0.057 R)
• M2: 545,135 km (0.081 R)
• M3: 958,174 km (0.097 R)
• M4: 1,536,819 km (0.074 R)
• M5: 3,112,982 km (0.102 R)
• M6: 3,579,578 km (0.086 R)
• M7: 5,262,554 km (0.105 R)
• M8: 5,963,420 km (0.043 R)
• M9: 6,893,171 km (0.036 R)
• M10: 9,822,596 km (0.03 R)
• M11: 10,371,172 km (0.11 R)
• M12: 10,767,307 km (0.038 R)
• M13: 11,893,180 km (0.073 R)
• M14: 12,836,096 km (0.115 R)
• M15: 14,169,462 km (0.05 R)
• M16: 16,037,789 km (0.118 R)
• M17: 37,756,408 km (0.118 R)
• M18: 44,052,983 km (0.066 R)
• M19: 48,148,075 km (0.085 R)
• M20: 61,023,066 km (0.108 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.25 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 644.7

Radius: 7.3

Gravity: 12.1 G

Time & Orbit

Eccentricity (e): 0.07

Orbit Range: 9.53 AU - 10.97 AU

Year: 22652 Days

Day: 23.1 Hours

Environment

Temp: -230 °C

Axial Tilt: 28.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 81,019,055 km

• M1: 90,806 km (0.111 R)
• M2: 353,201 km (0.108 R)
• M3: 672,592 km (0.067 R)
• M4: 1,062,594 km (0.074 R)
• M5: 2,126,384 km (0.095 R)
• M6: 2,525,062 km (0.067 R)
• M7: 3,356,527 km (0.032 R)
• M8: 3,711,374 km (0.111 R)
• M9: 5,348,273 km (0.041 R)
• M10: 5,791,831 km (0.119 R)
• M11: 6,043,904 km (0.118 R)
• M12: 6,798,326 km (0.069 R)
• M13: 7,663,749 km (0.07 R)
• M14: 8,600,681 km (0.114 R)
• M15: 9,153,146 km (0.096 R)
• M16: 9,553,769 km (0.045 R)
• M17: 10,085,888 km (0.055 R)
• M18: 11,209,368 km (0.072 R)
• M19: 13,851,117 km (0.118 R)
• M20: 18,011,883 km (0.092 R)
• M21: 21,305,579 km (0.104 R)
• M22: 22,832,525 km (0.025 R)
• M23: 30,171,347 km (0.057 R)
• M24: 34,506,245 km (0.089 R)
• M25: 37,181,354 km (0.069 R)
• M26: 38,643,374 km (0.089 R)
• M27: 43,099,446 km (0.098 R)
• M28: 47,036,712 km (0.11 R)
• M29: 50,850,710 km (0.118 R)
• M30: 54,492,520 km (0.081 R)
• M31: 56,758,928 km (0.1 R)
• M32: 60,076,261 km (0.068 R)
• M33: 67,308,570 km (0.09 R)
• M34: 76,727,102 km (0.094 R)
• M35: 80,776,567 km (0.108 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: 507 - 18,448 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit