🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.37 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 28.6

Radius: 8.2

Gravity: 0.43 G

Time & Orbit

Eccentricity (e): 0.055

Orbit Range: 0.69 AU - 0.77 AU

Year: 416 Days

Day: 12.6 Hours

Environment

Temp: -162 °C

Axial Tilt: 23.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 74,226,579 km

• M1: 102,026 km (0.068 R)
• M2: 366,814 km (0.113 R)
• M3: 689,796 km (0.059 R)
• M4: 993,928 km (0.114 R)
• M5: 1,265,299 km (0.118 R)
• M6: 1,767,349 km (0.096 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 212.1

Radius: 11.5

Gravity: 1.6 G

Time & Orbit

Eccentricity (e): 0.007

Orbit Range: 0.77 AU - 0.79 AU

Year: 459 Days

Day: 14.5 Hours

Environment

Temp: -166 °C

Axial Tilt: 25.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 74,226,579 km

• M1: 143,016 km (0.118 R)
• M2: 1,195,885 km (0.056 R)
• M3: 1,611,169 km (0.118 R)
• M4: 2,019,870 km (0.111 R)
• M5: 2,506,512 km (0.064 R)
• M6: 3,129,887 km (0.114 R)
• M7: 3,981,398 km (0.079 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 371.9

Radius: 14.1

Gravity: 1.87 G

Time & Orbit

Eccentricity (e): 0.143

Orbit Range: 0.99 AU - 1.31 AU

Year: 822 Days

Day: 12.2 Hours

Environment

Temp: -185 °C

Axial Tilt: 13.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 74,226,579 km

• M1: 175,329 km (0.078 R)
• M2: 662,120 km (0.107 R)
• M3: 1,121,834 km (0.064 R)
• M4: 1,805,945 km (0.072 R)
• M5: 2,337,018 km (0.099 R)
• M6: 2,983,879 km (0.117 R)
• M7: 3,627,748 km (0.115 R)
• M8: 4,112,445 km (0.116 R)
• M9: 4,783,392 km (0.119 R)
• M10: 5,724,063 km (0.063 R)
• M11: 6,602,652 km (0.11 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 477.2

Radius: 11.8

Gravity: 3.43 G

Time & Orbit

Eccentricity (e): 0.144

Orbit Range: 1.93 AU - 2.57 AU

Year: 2251 Days

Day: 6.4 Hours

Environment

Temp: -214 °C

Axial Tilt: 15.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 74,226,579 km

• M1: 146,756 km (0.113 R)
• M2: 518,805 km (0.092 R)
• M3: 981,362 km (0.103 R)
• M4: 1,633,310 km (0.107 R)
• M5: 2,200,734 km (0.089 R)
• M6: 2,911,474 km (0.048 R)
• M7: 3,664,699 km (0.072 R)
• M8: 4,210,582 km (0.109 R)
• M9: 5,674,247 km (0.099 R)
• M10: 6,280,717 km (0.099 R)
• M11: 7,174,564 km (0.085 R)
• M12: 7,767,720 km (0.111 R)
• M13: 8,924,261 km (0.103 R)
• M14: 9,711,894 km (0.105 R)
• M15: 11,163,891 km (0.051 R)
• M16: 12,796,452 km (0.097 R)
• M17: 13,669,954 km (0.092 R)
• M18: 14,056,216 km (0.119 R)

Planet 5 - Ice Giant

Semi-Major Axis: 9.25 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 809.2

Radius: 4.3

Gravity: 43.76 G

Time & Orbit

Eccentricity (e): 0.131

Orbit Range: 8.04 AU - 10.46 AU

Year: 18760 Days

Day: 22.7 Hours

Environment

Temp: -239 °C

Axial Tilt: 29.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 74,226,579 km

• M1: 53,556 km (0.114 R)
• M2: 226,641 km (0.091 R)
• M3: 678,875 km (0.081 R)
• M4: 1,536,071 km (0.104 R)
• M5: 2,325,948 km (0.093 R)
• M6: 2,846,698 km (0.084 R)
• M7: 3,027,711 km (0.111 R)
• M8: 4,448,891 km (0.071 R)
• M9: 5,759,817 km (0.062 R)
• M10: 6,008,000 km (0.095 R)
• M11: 6,263,064 km (0.111 R)
• M12: 7,119,063 km (0.082 R)
• M13: 7,747,823 km (0.055 R)
• M14: 8,518,402 km (0.064 R)
• M15: 12,798,247 km (0.115 R)
• M16: 13,798,309 km (0.114 R)
• M17: 25,355,941 km (0.098 R)
• M18: 36,324,009 km (0.074 R)
• M19: 42,520,951 km (0.046 R)
• M20: 49,730,671 km (0.116 R)
• M21: 50,249,925 km (0.113 R)
• M22: 56,954,602 km (0.114 R)
• M23: 59,250,780 km (0.105 R)
• M24: 60,421,682 km (0.101 R)
• M25: 62,608,205 km (0.07 R)
• M26: 68,624,433 km (0.072 R)
• M27: 70,349,446 km (0.054 R)
• M28: 73,885,640 km (0.117 R)
• M29: 74,335,930 km (0.192 R)

Planet 6 - Ice Giant

Semi-Major Axis: 9.54 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 762.7

Radius: 6.7

Gravity: 16.99 G

Time & Orbit

Eccentricity (e): 0.095

Orbit Range: 8.63 AU - 10.45 AU

Year: 19650 Days

Day: 20.7 Hours

Environment

Temp: -225 °C

Axial Tilt: 21.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 74,226,579 km

• M1: 88,712 km (0.106 R)
• M2: 325,675 km (0.114 R)
• M3: 609,013 km (0.074 R)
• M4: 1,329,177 km (0.063 R)
• M5: 1,650,065 km (0.081 R)
• M6: 2,102,448 km (0.117 R)
• M7: 4,845,176 km (0.061 R)
• M8: 5,728,850 km (0.087 R)
• M9: 6,144,733 km (0.119 R)
• M10: 6,625,390 km (0.1 R)
• M11: 8,012,761 km (0.052 R)
• M12: 11,157,308 km (0.067 R)
• M13: 12,617,234 km (0.112 R)
• M14: 15,039,373 km (0.074 R)
• M15: 17,068,967 km (0.035 R)
• M16: 17,324,181 km (0.116 R)
• M17: 20,112,536 km (0.057 R)
• M18: 21,662,520 km (0.074 R)
• M19: 21,961,715 km (0.083 R)
• M20: 22,876,058 km (0.104 R)
• M21: 34,260,156 km (0.102 R)
• M22: 34,939,181 km (0.112 R)
• M23: 36,605,253 km (0.067 R)
• M24: 36,887,993 km (0.074 R)
• M25: 49,259,288 km (0.115 R)
• M26: 58,367,255 km (0.102 R)
• M27: 59,725,603 km (0.039 R)
• M28: 67,894,545 km (0.118 R)
• M29: 75,855,994 km (0.114 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.87 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 899

Radius: 5.7

Gravity: 27.67 G

Time & Orbit

Eccentricity (e): 0.218

Orbit Range: 7.72 AU - 12.02 AU

Year: 20678 Days

Day: 24.3 Hours

Environment

Temp: -228 °C

Axial Tilt: 8.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (43)

Outer Limit: 74,226,579 km

• M1: 72,555 km (0.067 R)
• M2: 419,472 km (0.088 R)
• M3: 692,339 km (0.05 R)
• M4: 1,727,556 km (0.115 R)
• M5: 2,020,319 km (0.113 R)
• M6: 2,211,655 km (0.115 R)
• M7: 4,704,105 km (0.091 R)
• M8: 5,599,897 km (0.091 R)
• M9: 6,242,121 km (0.038 R)
• M10: 6,421,489 km (0.091 R)
• M11: 7,621,264 km (0.055 R)
• M12: 8,087,710 km (0.098 R)
• M13: 8,627,908 km (0.03 R)
• M14: 8,963,456 km (0.049 R)
• M15: 9,660,582 km (0.118 R)
• M16: 9,900,836 km (0.101 R)
• M17: 10,330,780 km (0.045 R)
• M18: 13,250,033 km (0.106 R)
• M19: 15,258,534 km (0.11 R)
• M20: 15,915,269 km (0.105 R)
• M21: 17,372,950 km (0.067 R)
• M22: 19,104,994 km (0.098 R)
• M23: 20,158,612 km (0.114 R)
• M24: 22,381,188 km (0.079 R)
• M25: 22,590,924 km (0.1 R)
• M26: 24,538,838 km (0.101 R)
• M27: 27,545,905 km (0.059 R)
• M28: 30,660,532 km (0.099 R)
• M29: 35,262,013 km (0.08 R)
• M30: 38,472,683 km (0.107 R)
• M31: 41,714,020 km (0.04 R)
• M32: 42,191,536 km (0.109 R)
• M33: 47,340,396 km (0.093 R)
• M34: 50,694,530 km (0.113 R)
• M35: 51,056,556 km (0.099 R)
• M36: 51,602,738 km (0.089 R)
• M37: 55,344,630 km (0.097 R)
• M38: 68,527,344 km (0.073 R)
• M39: 74,197,702 km (0.111 R)
• M40: 76,313,165 km (0.111 R)
• M41: 80,910,756 km (0.077 R)
• M42: 81,901,693 km (0.169 R)
• M43: 83,403,057 km (0.084 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.93 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 584.2

Radius: 7.9

Gravity: 9.36 G

Time & Orbit

Eccentricity (e): 0.02

Orbit Range: 9.73 AU - 10.13 AU

Year: 20867 Days

Day: 21.6 Hours

Environment

Temp: -244 °C

Axial Tilt: 45.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 74,226,579 km

• M1: 98,585 km (0.113 R)
• M2: 348,413 km (0.113 R)
• M3: 664,963 km (0.082 R)
• M4: 1,256,473 km (0.113 R)
• M5: 1,656,796 km (0.055 R)
• M6: 2,306,650 km (0.119 R)
• M7: 2,986,123 km (0.087 R)
• M8: 4,428,097 km (0.088 R)
• M9: 5,590,323 km (0.119 R)
• M10: 6,158,047 km (0.11 R)
• M11: 7,648,042 km (0.09 R)
• M12: 8,450,933 km (0.11 R)
• M13: 8,713,029 km (0.074 R)
• M14: 10,824,902 km (0.115 R)
• M15: 12,164,252 km (0.105 R)
• M16: 13,826,284 km (0.095 R)
• M17: 14,412,408 km (0.098 R)
• M18: 17,173,387 km (0.063 R)
• M19: 17,425,310 km (0.099 R)
• M20: 21,024,634 km (0.079 R)
• M21: 23,612,827 km (0.078 R)
• M22: 25,524,239 km (0.07 R)
• M23: 33,415,676 km (0.03 R)
• M24: 34,737,523 km (0.114 R)
• M25: 36,231,557 km (0.12 R)
• M26: 45,142,055 km (0.068 R)
• M27: 52,356,412 km (0.086 R)
• M28: 52,886,587 km (0.112 R)
• M29: 57,633,028 km (0.079 R)
• M30: 61,864,703 km (0.112 R)
• M31: 63,854,954 km (0.102 R)
• M32: 71,589,911 km (0.113 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 425 - 19,173 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit