🌌 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 - Gas Giant

Semi-Major Axis: 0.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 337.5

Radius: 9.5

Gravity: 3.74 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 0.5 AU - 0.6 AU

Year: 272 Days

Day: 10.3 Hours

Environment

Temp: -149 °C

Axial Tilt: 37.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 67,879,392 km

• M1: 118,182 km (0.092 R)
• M2: 580,290 km (0.114 R)
• M3: 933,042 km (0.106 R)
• M4: 1,372,710 km (0.112 R)
• M5: 1,735,784 km (0.119 R)
• M6: 2,310,090 km (0.112 R)
• M7: 2,811,692 km (0.085 R)
• M8: 3,306,412 km (0.075 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 831.8

Radius: 9.6

Gravity: 9.03 G

Time & Orbit

Eccentricity (e): 0.186

Orbit Range: 0.49 AU - 0.71 AU

Year: 310 Days

Day: 6.1 Hours

Environment

Temp: -157 °C

Axial Tilt: 0.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 67,879,392 km

• M1: 120,576 km (0.073 R)
• M2: 439,369 km (0.1 R)
• M3: 852,857 km (0.111 R)
• M4: 1,226,553 km (0.088 R)
• M5: 1,627,774 km (0.097 R)
• M6: 2,012,241 km (0.108 R)
• M7: 2,493,348 km (0.092 R)
• M8: 2,805,858 km (0.03 R)
• M9: 3,274,697 km (0.091 R)
• M10: 3,710,626 km (0.119 R)
• M11: 4,056,346 km (0.107 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 767.6

Radius: 8.5

Gravity: 10.62 G

Time & Orbit

Eccentricity (e): 0.106

Orbit Range: 0.57 AU - 0.71 AU

Year: 341 Days

Day: 11.5 Hours

Environment

Temp: -150 °C

Axial Tilt: 5.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 67,879,392 km

• M1: 105,766 km (0.1 R)
• M2: 391,946 km (0.06 R)
• M3: 677,080 km (0.099 R)
• M4: 946,057 km (0.062 R)
• M5: 1,371,214 km (0.114 R)
• M6: 1,670,709 km (0.106 R)
• M7: 2,054,128 km (0.029 R)
• M8: 2,368,284 km (0.049 R)
• M9: 3,137,815 km (0.075 R)
• M10: 3,936,518 km (0.102 R)
• M11: 4,619,732 km (0.091 R)
• M12: 5,102,484 km (0.118 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 21

Radius: 8.1

Gravity: 0.32 G

Time & Orbit

Eccentricity (e): 0.059

Orbit Range: 0.86 AU - 0.96 AU

Year: 579 Days

Day: 15 Hours

Environment

Temp: -170 °C

Axial Tilt: 114 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 67,879,392 km

• M1: 100,829 km (0.105 R)
• M2: 380,128 km (0.038 R)
• M3: 801,994 km (0.119 R)
• M4: 1,602,193 km (0.105 R)
• M5: 1,881,642 km (0.087 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 480.1

Radius: 11.7

Gravity: 3.51 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 1.48 AU - 1.58 AU

Year: 1262 Days

Day: 6.7 Hours

Environment

Temp: -187 °C

Axial Tilt: 21 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 67,879,392 km

• M1: 146,905 km (0.11 R)
• M2: 659,278 km (0.048 R)
• M3: 1,108,371 km (0.114 R)
• M4: 1,482,365 km (0.078 R)
• M5: 2,123,093 km (0.091 R)
• M6: 2,627,537 km (0.054 R)
• M7: 3,352,189 km (0.114 R)
• M8: 4,273,114 km (0.078 R)
• M9: 5,083,336 km (0.112 R)
• M10: 5,454,937 km (0.099 R)
• M11: 6,100,601 km (0.097 R)
• M12: 6,843,355 km (0.087 R)
• M13: 8,134,833 km (0.111 R)
• M14: 9,378,141 km (0.034 R)
• M15: 10,060,606 km (0.115 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 35.1

Radius: 11.3

Gravity: 0.27 G

Time & Orbit

Eccentricity (e): 0.054

Orbit Range: 3.87 AU - 4.31 AU

Year: 5516 Days

Day: 14.7 Hours

Environment

Temp: -229 °C

Axial Tilt: 19.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 67,879,392 km

• M1: 140,622 km (0.113 R)
• M2: 697,276 km (0.114 R)
• M3: 1,353,562 km (0.06 R)
• M4: 2,760,978 km (0.084 R)
• M5: 6,737,140 km (0.108 R)
• M6: 8,567,620 km (0.091 R)
• M7: 11,075,030 km (0.075 R)
• M8: 11,938,808 km (0.1 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 900.2

Radius: 14.6

Gravity: 4.22 G

Time & Orbit

Eccentricity (e): 0.025

Orbit Range: 5.17 AU - 5.43 AU

Year: 8137 Days

Day: 9.2 Hours

Environment

Temp: -216 °C

Axial Tilt: 93.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 67,879,392 km

• M1: 181,612 km (0.069 R)
• M2: 750,682 km (0.111 R)
• M3: 1,281,755 km (0.058 R)
• M4: 1,746,106 km (0.115 R)
• M5: 3,277,091 km (0.107 R)
• M6: 4,307,222 km (0.062 R)
• M7: 5,066,281 km (0.066 R)
• M8: 7,806,017 km (0.03 R)
• M9: 9,259,510 km (0.096 R)
• M10: 10,324,647 km (0.113 R)
• M11: 12,525,830 km (0.051 R)
• M12: 15,681,148 km (0.078 R)
• M13: 16,220,149 km (0.099 R)
• M14: 18,058,109 km (0.069 R)
• M15: 23,342,803 km (0.059 R)
• M16: 24,945,595 km (0.073 R)
• M17: 34,301,595 km (0.108 R)
• M18: 36,371,282 km (0.111 R)
• M19: 38,522,948 km (0.108 R)
• M20: 39,135,401 km (0.115 R)
• M21: 41,266,573 km (0.103 R)
• M22: 42,425,657 km (0.104 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.46 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 363.2

Radius: 6.5

Gravity: 8.6 G

Time & Orbit

Eccentricity (e): 0.119

Orbit Range: 7.45 AU - 9.47 AU

Year: 16409 Days

Day: 16.4 Hours

Environment

Temp: -241 °C

Axial Tilt: 27.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 67,879,392 km

• M1: 96,341 km (0.091 R)
• M2: 340,934 km (0.083 R)
• M3: 558,898 km (0.09 R)
• M4: 1,072,467 km (0.031 R)
• M5: 1,276,519 km (0.069 R)
• M6: 1,701,975 km (0.106 R)
• M7: 2,180,389 km (0.104 R)
• M8: 2,810,645 km (0.065 R)
• M9: 3,228,771 km (0.084 R)
• M10: 3,849,752 km (0.044 R)
• M11: 5,534,373 km (0.112 R)
• M12: 5,783,902 km (0.094 R)
• M13: 6,538,325 km (0.103 R)
• M14: 7,062,815 km (0.059 R)
• M15: 7,923,750 km (0.048 R)
• M16: 9,393,849 km (0.088 R)
• M17: 10,219,629 km (0.048 R)
• M18: 10,870,080 km (0.081 R)
• M19: 11,149,081 km (0.115 R)
• M20: 13,364,775 km (0.118 R)
• M21: 14,812,732 km (0.114 R)
• M22: 15,434,162 km (0.105 R)
• M23: 15,715,855 km (0.115 R)
• M24: 16,655,180 km (0.111 R)
• M25: 17,861,986 km (0.092 R)
• M26: 18,486,706 km (0.062 R)
• M27: 19,862,558 km (0.086 R)
• M28: 21,479,561 km (0.086 R)
• M29: 22,816,518 km (0.116 R)
• M30: 23,925,337 km (0.097 R)
• M31: 30,784,399 km (0.098 R)
• M32: 33,646,655 km (0.11 R)
• M33: 34,120,582 km (0.115 R)
• M34: 41,095,283 km (0.091 R)
• M35: 43,991,049 km (0.051 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.44 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 210.5

Radius: 7.5

Gravity: 3.74 G

Time & Orbit

Eccentricity (e): 0.149

Orbit Range: 8.88 AU - 12 AU

Year: 22495 Days

Day: 18.6 Hours

Environment

Temp: -230 °C

Axial Tilt: 2.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 67,879,392 km

• M1: 93,499 km (0.045 R)
• M2: 356,193 km (0.04 R)
• M3: 767,736 km (0.082 R)
• M4: 1,403,826 km (0.07 R)
• M5: 1,875,957 km (0.083 R)
• M6: 2,573,532 km (0.04 R)
• M7: 2,878,712 km (0.082 R)
• M8: 4,027,025 km (0.056 R)
• M9: 4,319,040 km (0.091 R)
• M10: 8,253,763 km (0.09 R)
• M11: 9,266,691 km (0.092 R)
• M12: 10,742,922 km (0.092 R)
• M13: 11,249,161 km (0.118 R)
• M14: 11,830,050 km (0.069 R)
• M15: 14,221,222 km (0.078 R)
• M16: 14,490,349 km (0.061 R)
• M17: 16,767,079 km (0.038 R)
• M18: 17,143,168 km (0.041 R)
• M19: 19,354,225 km (0.063 R)
• M20: 19,935,263 km (0.088 R)
• M21: 22,740,821 km (0.077 R)
• M22: 24,237,847 km (0.091 R)
• M23: 25,304,330 km (0.092 R)
• M24: 26,503,058 km (0.096 R)
• M25: 27,948,921 km (0.116 R)
• M26: 28,905,600 km (0.106 R)
• M27: 32,951,773 km (0.103 R)
• M28: 40,238,985 km (0.113 R)
• M29: 42,146,059 km (0.116 R)
• M30: 42,701,815 km (0.06 R)
• M31: 45,992,669 km (0.095 R)
• M32: 54,704,201 km (0.045 R)

Planet 10 - Ice Giant

Semi-Major Axis: 10.5 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 377.9

Radius: 3.3

Gravity: 34.7 G

Time & Orbit

Eccentricity (e): 0.015

Orbit Range: 10.34 AU - 10.66 AU

Year: 22689 Days

Day: 15.4 Hours

Environment

Temp: -245 °C

Axial Tilt: 147.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 67,879,392 km

• M1: 48,470 km (0.034 R)
• M2: 456,722 km (0.112 R)
• M3: 1,152,652 km (0.11 R)
• M4: 1,984,715 km (0.059 R)
• M5: 2,501,127 km (0.081 R)
• M6: 3,852,295 km (0.069 R)
• M7: 4,158,671 km (0.11 R)
• M8: 6,140,693 km (0.117 R)
• M9: 8,169,689 km (0.104 R)
• M10: 8,520,796 km (0.086 R)
• M11: 11,890,787 km (0.065 R)
• M12: 16,130,690 km (0.112 R)
• M13: 19,722,086 km (0.107 R)
• M14: 27,978,991 km (0.065 R)
• M15: 44,558,923 km (0.072 R)
• M16: 49,991,420 km (0.078 R)
• M17: 56,746,960 km (0.055 R)
• M18: 57,472,360 km (0.113 R)
• M19: 59,872,658 km (0.096 R)
• M20: 61,955,210 km (0.092 R)
• M21: 63,694,734 km (0.093 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 299 - 15,082 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit