🌌 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 - Terrestrial

Semi-Major Axis: 0.55 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.1

Radius: 1.35

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.097

Orbit Range: 0.5 AU - 0.6 AU

Year: 268 Days

Day: 42.8 Hours

Environment

Temp: -130 °C

Axial Tilt: 12.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 292.3

Radius: 14.5

Gravity: 1.39 G

Time & Orbit

Eccentricity (e): 0.157

Orbit Range: 0.62 AU - 0.84 AU

Year: 409 Days

Day: 14.8 Hours

Environment

Temp: -144 °C

Axial Tilt: 31.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 30,205,088 km

• M1: 180,415 km (0.103 R)
• M2: 631,453 km (0.053 R)
• M3: 1,121,236 km (0.045 R)
• M4: 1,594,265 km (0.068 R)
• M5: 2,098,409 km (0.05 R)
• M6: 3,142,752 km (0.091 R)
• M7: 4,103,021 km (0.116 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 702.1

Radius: 9.3

Gravity: 8.12 G

Time & Orbit

Eccentricity (e): 0.18

Orbit Range: 0.89 AU - 1.27 AU

Year: 736 Days

Day: 7.4 Hours

Environment

Temp: -173 °C

Axial Tilt: 24 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 30,205,088 km

• M1: 115,639 km (0.072 R)
• M2: 436,227 km (0.061 R)
• M3: 894,146 km (0.119 R)
• M4: 1,562,849 km (0.103 R)
• M5: 1,853,069 km (0.081 R)
• M6: 2,819,022 km (0.056 R)
• M7: 3,254,352 km (0.058 R)
• M8: 4,371,100 km (0.113 R)
• M9: 4,732,977 km (0.052 R)
• M10: 5,061,345 km (0.089 R)
• M11: 5,479,321 km (0.112 R)
• M12: 5,841,946 km (0.099 R)
• M13: 6,384,688 km (0.111 R)
• M14: 6,679,096 km (0.119 R)
• M15: 7,004,771 km (0.058 R)
• M16: 7,711,321 km (0.043 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 870.5

Radius: 15

Gravity: 3.87 G

Time & Orbit

Eccentricity (e): 0.164

Orbit Range: 0.91 AU - 1.27 AU

Year: 747 Days

Day: 14.1 Hours

Environment

Temp: -170 °C

Axial Tilt: 25.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 30,205,088 km

• M1: 186,549 km (0.113 R)
• M2: 781,200 km (0.084 R)
• M3: 1,293,722 km (0.104 R)
• M4: 1,847,982 km (0.114 R)
• M5: 2,398,951 km (0.105 R)
• M6: 2,960,093 km (0.111 R)
• M7: 3,811,455 km (0.112 R)
• M8: 5,380,587 km (0.062 R)
• M9: 6,145,780 km (0.052 R)
• M10: 7,209,121 km (0.095 R)
• M11: 8,240,599 km (0.033 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 501.3

Radius: 11.6

Gravity: 3.73 G

Time & Orbit

Eccentricity (e): 0.212

Orbit Range: 1.98 AU - 3.04 AU

Year: 2609 Days

Day: 6 Hours

Environment

Temp: -198 °C

Axial Tilt: 42 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 30,205,088 km

• M1: 211,980 km (0.046 R)
• M2: 602,431 km (0.111 R)
• M3: 1,126,921 km (0.096 R)
• M4: 1,506,002 km (0.078 R)
• M5: 2,214,647 km (0.03 R)
• M6: 3,452,120 km (0.057 R)
• M7: 6,273,088 km (0.027 R)
• M8: 6,754,643 km (0.111 R)
• M9: 7,405,843 km (0.105 R)
• M10: 8,254,511 km (0.081 R)
• M11: 10,073,322 km (0.098 R)
• M12: 10,923,936 km (0.09 R)
• M13: 11,942,398 km (0.113 R)
• M14: 13,455,730 km (0.076 R)
• M15: 13,853,361 km (0.088 R)
• M16: 15,522,724 km (0.095 R)
• M17: 16,809,116 km (0.119 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 526.1

Radius: 11.2

Gravity: 4.19 G

Time & Orbit

Eccentricity (e): 0.079

Orbit Range: 3.04 AU - 3.56 AU

Year: 3933 Days

Day: 11.9 Hours

Environment

Temp: -211 °C

Axial Tilt: 5.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 30,205,088 km

• M1: 141,669 km (0.088 R)
• M2: 527,632 km (0.093 R)
• M3: 892,501 km (0.044 R)
• M4: 1,297,163 km (0.091 R)
• M5: 2,134,462 km (0.043 R)
• M6: 2,524,763 km (0.107 R)
• M7: 3,137,965 km (0.101 R)
• M8: 4,363,919 km (0.069 R)
• M9: 5,534,672 km (0.09 R)
• M10: 8,138,872 km (0.072 R)
• M11: 8,991,580 km (0.107 R)
• M12: 10,020,813 km (0.059 R)
• M13: 10,749,505 km (0.04 R)
• M14: 11,340,267 km (0.112 R)
• M15: 12,131,789 km (0.099 R)
• M16: 13,053,910 km (0.114 R)
• M17: 13,629,114 km (0.065 R)
• M18: 15,193,908 km (0.085 R)
• M19: 16,210,276 km (0.069 R)
• M20: 18,617,305 km (0.112 R)
• M21: 19,780,728 km (0.099 R)
• M22: 20,604,264 km (0.109 R)
• M23: 22,117,148 km (0.117 R)
• M24: 23,142,940 km (0.108 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 319.8

Radius: 9.8

Gravity: 3.33 G

Time & Orbit

Eccentricity (e): 0.097

Orbit Range: 3.36 AU - 4.08 AU

Year: 4707 Days

Day: 11.2 Hours

Environment

Temp: -208 °C

Axial Tilt: 41.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 30,205,088 km

• M1: 122,072 km (0.055 R)
• M2: 602,730 km (0.055 R)
• M3: 1,311,375 km (0.065 R)
• M4: 2,271,793 km (0.026 R)
• M5: 2,754,546 km (0.116 R)
• M6: 3,744,435 km (0.075 R)
• M7: 4,465,496 km (0.097 R)
• M8: 5,480,967 km (0.065 R)
• M9: 6,295,826 km (0.088 R)
• M10: 6,792,192 km (0.113 R)
• M11: 7,127,142 km (0.112 R)
• M12: 7,537,339 km (0.096 R)
• M13: 9,007,437 km (0.111 R)
• M14: 10,258,674 km (0.111 R)
• M15: 11,239,138 km (0.073 R)
• M16: 14,756,484 km (0.099 R)
• M17: 16,111,242 km (0.106 R)
• M18: 18,767,950 km (0.111 R)
• M19: 19,612,730 km (0.105 R)
• M20: 20,293,998 km (0.11 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.16 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 170.4

Radius: 8

Gravity: 2.66 G

Time & Orbit

Eccentricity (e): 0.046

Orbit Range: 5.88 AU - 6.44 AU

Year: 10030 Days

Day: 23.4 Hours

Environment

Temp: -218 °C

Axial Tilt: 26.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 30,205,088 km

• M1: 99,483 km (0.068 R)
• M2: 378,333 km (0.048 R)
• M3: 698,622 km (0.029 R)
• M4: 1,446,312 km (0.108 R)
• M5: 1,858,006 km (0.119 R)
• M6: 2,251,298 km (0.096 R)
• M7: 2,560,517 km (0.073 R)
• M8: 2,824,557 km (0.091 R)
• M9: 3,534,100 km (0.114 R)
• M10: 7,954,568 km (0.112 R)
• M11: 10,206,016 km (0.039 R)
• M12: 10,783,763 km (0.086 R)
• M13: 12,102,169 km (0.107 R)
• M14: 19,992,559 km (0.087 R)
• M15: 22,786,149 km (0.069 R)
• M16: 24,393,279 km (0.103 R)
• M17: 27,069,286 km (0.034 R)
• M18: 29,755,764 km (0.107 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 381 - 13,497 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit