🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.38 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 908.8

Radius: 10.4

Gravity: 8.4 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 0.73 AU - 0.77 AU

Year: 426 Days

Day: 7.5 Hours

Environment

Temp: -138 °C

Axial Tilt: 22.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 25,737,517 km

• M1: 129,402 km (0.091 R)
• M2: 464,053 km (0.11 R)
• M3: 808,427 km (0.053 R)
• M4: 1,137,393 km (0.084 R)
• M5: 2,014,485 km (0.059 R)
• M6: 2,498,883 km (0.044 R)
• M7: 2,828,148 km (0.075 R)
• M8: 3,151,728 km (0.103 R)
• M9: 3,651,834 km (0.095 R)
• M10: 4,275,208 km (0.105 R)
• M11: 4,703,806 km (0.1 R)
• M12: 5,064,038 km (0.092 R)
• M13: 5,476,329 km (0.092 R)
• M14: 5,804,697 km (0.038 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 95

Radius: 14

Gravity: 0.48 G

Time & Orbit

Eccentricity (e): 0.15

Orbit Range: 0.92 AU - 1.24 AU

Year: 736 Days

Day: 8.1 Hours

Environment

Temp: -154 °C

Axial Tilt: 38.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 25,737,517 km

• M1: 174,132 km (0.074 R)
• M2: 651,499 km (0.118 R)
• M3: 1,205,609 km (0.111 R)
• M4: 1,822,102 km (0.025 R)
• M5: 2,373,221 km (0.073 R)
• M6: 2,910,576 km (0.074 R)
• M7: 4,320,985 km (0.036 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 75.8

Radius: 9.7

Gravity: 0.81 G

Time & Orbit

Eccentricity (e): 0.041

Orbit Range: 1.08 AU - 1.18 AU

Year: 788 Days

Day: 5.3 Hours

Environment

Temp: -171 °C

Axial Tilt: 19.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 25,737,517 km

• M1: 121,473 km (0.074 R)
• M2: 1,238,670 km (0.109 R)
• M3: 1,667,119 km (0.088 R)
• M4: 1,996,533 km (0.077 R)
• M5: 3,320,325 km (0.086 R)
• M6: 3,744,734 km (0.025 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 732.7

Radius: 12.4

Gravity: 4.77 G

Time & Orbit

Eccentricity (e): 0.082

Orbit Range: 1.57 AU - 1.85 AU

Year: 1467 Days

Day: 7.4 Hours

Environment

Temp: -193 °C

Axial Tilt: 10.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 25,737,517 km

• M1: 159,172 km (0.089 R)
• M2: 661,073 km (0.08 R)
• M3: 1,457,831 km (0.117 R)
• M4: 2,483,773 km (0.107 R)
• M5: 3,688,036 km (0.113 R)
• M6: 4,082,975 km (0.089 R)
• M7: 4,738,513 km (0.114 R)
• M8: 5,932,752 km (0.111 R)
• M9: 7,186,532 km (0.077 R)
• M10: 7,587,006 km (0.103 R)
• M11: 9,851,020 km (0.11 R)
• M12: 11,067,550 km (0.066 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 242.7

Radius: 10.1

Gravity: 2.38 G

Time & Orbit

Eccentricity (e): 0.084

Orbit Range: 1.68 AU - 1.98 AU

Year: 1624 Days

Day: 5.6 Hours

Environment

Temp: -192 °C

Axial Tilt: 24 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 25,737,517 km

• M1: 125,662 km (0.089 R)
• M2: 483,949 km (0.03 R)
• M3: 812,765 km (0.108 R)
• M4: 1,495,380 km (0.068 R)
• M5: 1,830,031 km (0.068 R)
• M6: 2,268,502 km (0.11 R)
• M7: 2,583,256 km (0.118 R)
• M8: 2,901,750 km (0.074 R)
• M9: 3,233,109 km (0.106 R)
• M10: 3,770,016 km (0.062 R)
• M11: 4,748,685 km (0.098 R)
• M12: 5,268,837 km (0.108 R)
• M13: 5,683,522 km (0.108 R)
• M14: 6,335,470 km (0.106 R)
• M15: 6,736,542 km (0.094 R)
• M16: 7,345,704 km (0.047 R)
• M17: 9,225,401 km (0.104 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 256

Radius: 13.4

Gravity: 1.43 G

Time & Orbit

Eccentricity (e): 0.166

Orbit Range: 1.61 AU - 2.25 AU

Year: 1759 Days

Day: 11.4 Hours

Environment

Temp: -180 °C

Axial Tilt: 13.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 25,737,517 km

• M1: 166,652 km (0.072 R)
• M2: 593,604 km (0.091 R)
• M3: 1,185,264 km (0.066 R)
• M4: 1,684,622 km (0.103 R)
• M5: 3,030,404 km (0.087 R)
• M6: 4,216,715 km (0.077 R)
• M7: 5,115,200 km (0.032 R)
• M8: 6,008,000 km (0.073 R)
• M9: 7,589,250 km (0.098 R)
• M10: 10,272,736 km (0.07 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.47 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 321.9

Radius: 8.7

Gravity: 4.25 G

Time & Orbit

Eccentricity (e): 0.089

Orbit Range: 2.25 AU - 2.69 AU

Year: 2547 Days

Day: 7 Hours

Environment

Temp: -195 °C

Axial Tilt: 20.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 25,737,517 km

• M1: 109,206 km (0.114 R)
• M2: 734,675 km (0.116 R)
• M3: 1,010,384 km (0.074 R)
• M4: 1,762,263 km (0.064 R)
• M5: 2,210,309 km (0.087 R)
• M6: 2,875,421 km (0.105 R)
• M7: 3,160,853 km (0.111 R)
• M8: 4,078,188 km (0.088 R)
• M9: 4,618,834 km (0.102 R)
• M10: 4,948,698 km (0.058 R)
• M11: 7,298,431 km (0.101 R)
• M12: 8,007,376 km (0.086 R)
• M13: 9,896,049 km (0.077 R)
• M14: 10,943,982 km (0.038 R)
• M15: 14,313,075 km (0.117 R)

Planet 8 - Gas Giant

Semi-Major Axis: 2.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 83.3

Radius: 8.8

Gravity: 1.08 G

Time & Orbit

Eccentricity (e): 0.14

Orbit Range: 2.55 AU - 3.37 AU

Year: 3341 Days

Day: 9.1 Hours

Environment

Temp: -194 °C

Axial Tilt: 44.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 25,737,517 km

• M1: 195,973 km (0.114 R)
• M2: 1,804,898 km (0.095 R)
• M3: 2,173,657 km (0.05 R)
• M4: 3,262,580 km (0.035 R)
• M5: 3,781,236 km (0.076 R)
• M6: 6,678,498 km (0.114 R)
• M7: 7,262,079 km (0.063 R)
• M8: 7,905,799 km (0.116 R)
• M9: 9,071,914 km (0.069 R)
• M10: 10,317,316 km (0.064 R)

Planet 9 - Gas Giant

Semi-Major Axis: 3.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 745

Radius: 12.6

Gravity: 4.69 G

Time & Orbit

Eccentricity (e): 0.122

Orbit Range: 2.82 AU - 3.6 AU

Year: 3773 Days

Day: 8.3 Hours

Environment

Temp: -209 °C

Axial Tilt: 45.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 25,737,517 km

• M1: 156,928 km (0.099 R)
• M2: 718,219 km (0.113 R)
• M3: 1,118,394 km (0.111 R)
• M4: 2,247,858 km (0.07 R)
• M5: 2,795,685 km (0.097 R)
• M6: 3,373,582 km (0.105 R)
• M7: 3,879,522 km (0.095 R)
• M8: 4,343,425 km (0.111 R)
• M9: 5,251,783 km (0.079 R)
• M10: 7,181,895 km (0.115 R)
• M11: 8,307,020 km (0.032 R)
• M12: 8,744,295 km (0.037 R)
• M13: 11,297,631 km (0.11 R)
• M14: 12,018,095 km (0.117 R)
• M15: 14,209,554 km (0.119 R)
• M16: 14,836,369 km (0.033 R)
• M17: 19,497,240 km (0.054 R)
• M18: 20,534,253 km (0.054 R)
• M19: 23,215,944 km (0.1 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 498 - 20,318 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit