🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 392.2

Radius: 15

Gravity: 1.74 G

Time & Orbit

Eccentricity (e): 0.077

Orbit Range: 0.61 AU - 0.71 AU

Year: 358 Days

Day: 6.7 Hours

Environment

Temp: -154 °C

Axial Tilt: 3.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 34,634,701 km

• M1: 186,549 km (0.078 R)
• M2: 655,239 km (0.103 R)
• M3: 1,407,566 km (0.075 R)
• M4: 2,095,717 km (0.091 R)
• M5: 2,698,147 km (0.065 R)
• M6: 3,436,712 km (0.044 R)
• M7: 3,947,289 km (0.068 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 282.7

Radius: 14

Gravity: 1.44 G

Time & Orbit

Eccentricity (e): 0.017

Orbit Range: 0.96 AU - 1 AU

Year: 647 Days

Day: 10.2 Hours

Environment

Temp: -164 °C

Axial Tilt: 38.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 34,634,701 km

• M1: 174,132 km (0.115 R)
• M2: 738,415 km (0.052 R)
• M3: 1,180,028 km (0.097 R)
• M4: 1,615,657 km (0.11 R)
• M5: 2,054,428 km (0.117 R)
• M6: 2,632,025 km (0.087 R)
• M7: 3,249,116 km (0.084 R)
• M8: 3,721,397 km (0.088 R)
• M9: 4,446,498 km (0.114 R)
• M10: 5,001,206 km (0.074 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 88.6

Radius: 11.6

Gravity: 0.66 G

Time & Orbit

Eccentricity (e): 0.213

Orbit Range: 0.87 AU - 1.33 AU

Year: 769 Days

Day: 9.8 Hours

Environment

Temp: -170 °C

Axial Tilt: 24 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 34,634,701 km

• M1: 144,362 km (0.109 R)
• M2: 901,028 km (0.107 R)
• M3: 1,303,446 km (0.105 R)
• M4: 2,482,427 km (0.069 R)
• M5: 3,308,357 km (0.032 R)
• M6: 3,861,121 km (0.044 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 890.5

Radius: 11.6

Gravity: 6.62 G

Time & Orbit

Eccentricity (e): 0.158

Orbit Range: 1.16 AU - 1.6 AU

Year: 1081 Days

Day: 13.6 Hours

Environment

Temp: -198 °C

Axial Tilt: 29.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 34,634,701 km

• M1: 144,212 km (0.106 R)
• M2: 539,450 km (0.096 R)
• M3: 1,150,108 km (0.119 R)
• M4: 1,583,942 km (0.091 R)
• M5: 2,664,787 km (0.047 R)
• M6: 3,320,474 km (0.079 R)
• M7: 4,064,275 km (0.078 R)
• M8: 4,539,847 km (0.068 R)
• M9: 4,954,532 km (0.112 R)
• M10: 6,059,163 km (0.098 R)
• M11: 6,492,847 km (0.103 R)
• M12: 7,020,927 km (0.073 R)
• M13: 7,474,209 km (0.069 R)
• M14: 8,551,912 km (0.047 R)
• M15: 9,157,634 km (0.114 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.29 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 727.6

Radius: 12.2

Gravity: 4.89 G

Time & Orbit

Eccentricity (e): 0.191

Orbit Range: 1.85 AU - 2.73 AU

Year: 2311 Days

Day: 11.6 Hours

Environment

Temp: -202 °C

Axial Tilt: 2.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 34,634,701 km

• M1: 151,842 km (0.086 R)
• M2: 539,899 km (0.087 R)
• M3: 975,827 km (0.05 R)
• M4: 1,419,833 km (0.103 R)
• M5: 1,860,998 km (0.111 R)
• M6: 2,462,381 km (0.112 R)
• M7: 3,207,229 km (0.081 R)
• M8: 3,660,510 km (0.074 R)
• M9: 4,525,934 km (0.09 R)
• M10: 5,355,305 km (0.099 R)
• M11: 6,204,422 km (0.077 R)
• M12: 6,661,593 km (0.099 R)
• M13: 8,106,709 km (0.09 R)
• M14: 9,260,258 km (0.072 R)
• M15: 11,055,283 km (0.071 R)
• M16: 11,448,426 km (0.106 R)
• M17: 13,645,570 km (0.119 R)
• M18: 14,052,626 km (0.1 R)
• M19: 17,820,996 km (0.069 R)
• M20: 18,417,143 km (0.09 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 658.8

Radius: 10.9

Gravity: 5.54 G

Time & Orbit

Eccentricity (e): 0.245

Orbit Range: 2.76 AU - 4.54 AU

Year: 4650 Days

Day: 8.9 Hours

Environment

Temp: -208 °C

Axial Tilt: 171.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 34,634,701 km

• M1: 135,536 km (0.114 R)
• M2: 615,296 km (0.065 R)
• M3: 1,053,019 km (0.118 R)
• M4: 1,521,261 km (0.091 R)
• M5: 2,055,176 km (0.115 R)
• M6: 2,559,620 km (0.083 R)
• M7: 3,107,597 km (0.119 R)
• M8: 4,248,729 km (0.038 R)
• M9: 4,685,705 km (0.098 R)
• M10: 6,059,163 km (0.096 R)
• M11: 6,709,764 km (0.055 R)
• M12: 8,484,742 km (0.118 R)
• M13: 9,061,741 km (0.095 R)
• M14: 9,420,328 km (0.047 R)
• M15: 12,059,084 km (0.095 R)
• M16: 18,747,007 km (0.107 R)
• M17: 27,893,121 km (0.052 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 960.5

Radius: 12.5

Gravity: 6.15 G

Time & Orbit

Eccentricity (e): 0.075

Orbit Range: 3.39 AU - 3.93 AU

Year: 4669 Days

Day: 5.5 Hours

Environment

Temp: -222 °C

Axial Tilt: 10.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 34,634,701 km

• M1: 155,432 km (0.11 R)
• M2: 622,327 km (0.115 R)
• M3: 1,179,130 km (0.12 R)
• M4: 2,468,814 km (0.096 R)
• M5: 3,982,595 km (0.113 R)
• M6: 4,832,011 km (0.1 R)
• M7: 5,648,965 km (0.115 R)
• M8: 6,621,950 km (0.089 R)
• M9: 7,925,695 km (0.106 R)
• M10: 8,344,719 km (0.09 R)
• M11: 8,778,403 km (0.087 R)
• M12: 10,126,429 km (0.107 R)
• M13: 12,149,591 km (0.099 R)
• M14: 12,915,083 km (0.117 R)
• M15: 13,821,048 km (0.052 R)
• M16: 15,759,687 km (0.119 R)
• M17: 17,423,664 km (0.074 R)
• M18: 21,683,164 km (0.085 R)
• M19: 22,885,931 km (0.051 R)
• M20: 23,659,801 km (0.114 R)
• M21: 26,506,798 km (0.098 R)
• M22: 27,102,347 km (0.027 R)
• M23: 28,497,347 km (0.09 R)
• M24: 29,665,707 km (0.063 R)
• M25: 31,810,491 km (0.102 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 304.6

Radius: 11.8

Gravity: 2.19 G

Time & Orbit

Eccentricity (e): 0.147

Orbit Range: 4.21 AU - 5.67 AU

Year: 7322 Days

Day: 12.7 Hours

Environment

Temp: -224 °C

Axial Tilt: 31.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 34,634,701 km

• M1: 211,681 km (0.112 R)
• M2: 1,190,350 km (0.042 R)
• M3: 2,011,194 km (0.11 R)
• M4: 2,932,567 km (0.104 R)
• M5: 3,733,664 km (0.07 R)
• M6: 4,574,553 km (0.102 R)
• M7: 5,175,189 km (0.101 R)
• M8: 10,465,568 km (0.115 R)
• M9: 12,623,218 km (0.051 R)
• M10: 13,129,008 km (0.075 R)
• M11: 17,990,191 km (0.083 R)
• M12: 18,501,816 km (0.105 R)
• M13: 19,554,237 km (0.111 R)
• M14: 20,785,427 km (0.089 R)
• M15: 21,778,159 km (0.117 R)
• M16: 23,100,604 km (0.112 R)
• M17: 26,148,810 km (0.111 R)

Planet 9 - Gas Giant

Semi-Major Axis: 5.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 345.5

Radius: 10.7

Gravity: 3.02 G

Time & Orbit

Eccentricity (e): 0.081

Orbit Range: 5.07 AU - 5.97 AU

Year: 8648 Days

Day: 7 Hours

Environment

Temp: -236 °C

Axial Tilt: 21 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 34,634,701 km

• M1: 133,142 km (0.077 R)
• M2: 520,900 km (0.095 R)
• M3: 1,284,896 km (0.084 R)
• M4: 2,581,162 km (0.075 R)
• M5: 4,142,664 km (0.068 R)
• M6: 5,999,473 km (0.112 R)
• M7: 6,389,026 km (0.066 R)
• M8: 8,475,767 km (0.104 R)
• M9: 9,872,861 km (0.097 R)
• M10: 12,325,668 km (0.108 R)
• M11: 16,380,219 km (0.084 R)
• M12: 17,273,169 km (0.067 R)
• M13: 19,017,330 km (0.059 R)
• M14: 20,802,182 km (0.037 R)
• M15: 21,172,138 km (0.106 R)
• M16: 23,088,337 km (0.111 R)
• M17: 25,368,657 km (0.112 R)
• M18: 26,737,179 km (0.099 R)
• M19: 32,111,183 km (0.108 R)
• M20: 33,915,184 km (0.067 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: 169 - 16,662 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit