🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.51 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.66

Radius: 1.48

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.002

Orbit Range: 0.51 AU - 0.51 AU

Year: 232 Days

Day: 42.5 Hours

Environment

Temp: -114 °C

Axial Tilt: 12.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 720.2

Radius: 9.5

Gravity: 7.98 G

Time & Orbit

Eccentricity (e): 0.182

Orbit Range: 0.56 AU - 0.8 AU

Year: 357 Days

Day: 7.7 Hours

Environment

Temp: -141 °C

Axial Tilt: 31.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 13,605,167 km

• M1: 118,182 km (0.1 R)
• M2: 627,114 km (0.088 R)
• M3: 1,484,011 km (0.119 R)
• M4: 2,159,296 km (0.068 R)
• M5: 2,595,972 km (0.089 R)
• M6: 3,943,998 km (0.107 R)
• M7: 4,310,214 km (0.091 R)
• M8: 4,946,603 km (0.089 R)
• M9: 5,248,940 km (0.106 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 605.2

Radius: 8.9

Gravity: 7.64 G

Time & Orbit

Eccentricity (e): 0.177

Orbit Range: 0.85 AU - 1.21 AU

Year: 665 Days

Day: 13 Hours

Environment

Temp: -155 °C

Axial Tilt: 14.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 13,605,167 km

• M1: 110,702 km (0.052 R)
• M2: 437,723 km (0.097 R)
• M3: 722,707 km (0.12 R)
• M4: 1,029,084 km (0.034 R)
• M5: 1,361,341 km (0.066 R)
• M6: 1,661,284 km (0.113 R)
• M7: 2,219,584 km (0.032 R)
• M8: 3,075,433 km (0.073 R)
• M9: 4,180,812 km (0.111 R)
• M10: 5,300,103 km (0.112 R)
• M11: 5,677,389 km (0.112 R)
• M12: 6,015,181 km (0.105 R)
• M13: 6,366,137 km (0.093 R)
• M14: 6,730,857 km (0.049 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 440.9

Radius: 12.6

Gravity: 2.78 G

Time & Orbit

Eccentricity (e): 0.059

Orbit Range: 1.04 AU - 1.18 AU

Year: 744 Days

Day: 6.7 Hours

Environment

Temp: -158 °C

Axial Tilt: 79.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 13,605,167 km

• M1: 158,125 km (0.108 R)
• M2: 575,054 km (0.086 R)
• M3: 994,078 km (0.055 R)
• M4: 2,159,894 km (0.12 R)
• M5: 2,942,590 km (0.113 R)
• M6: 3,647,495 km (0.087 R)
• M7: 4,987,144 km (0.108 R)
• M8: 5,412,152 km (0.115 R)
• M9: 6,773,792 km (0.099 R)
• M10: 7,168,730 km (0.069 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 825.1

Radius: 12.5

Gravity: 5.28 G

Time & Orbit

Eccentricity (e): 0.15

Orbit Range: 1.19 AU - 1.61 AU

Year: 1053 Days

Day: 8.8 Hours

Environment

Temp: -184 °C

Axial Tilt: 8.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 13,605,167 km

• M1: 155,432 km (0.107 R)
• M2: 558,598 km (0.088 R)
• M3: 1,035,068 km (0.072 R)
• M4: 1,524,402 km (0.112 R)
• M5: 2,321,759 km (0.06 R)
• M6: 2,714,453 km (0.07 R)
• M7: 3,110,140 km (0.084 R)
• M8: 3,954,171 km (0.094 R)
• M9: 5,022,150 km (0.088 R)
• M10: 6,686,875 km (0.063 R)
• M11: 7,568,605 km (0.085 R)
• M12: 8,721,556 km (0.094 R)
• M13: 9,896,198 km (0.045 R)
• M14: 10,714,499 km (0.042 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 342.7

Radius: 10.9

Gravity: 2.88 G

Time & Orbit

Eccentricity (e): 0.213

Orbit Range: 1.46 AU - 2.24 AU

Year: 1600 Days

Day: 11.5 Hours

Environment

Temp: -195 °C

Axial Tilt: 34.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 13,605,167 km

• M1: 135,536 km (0.079 R)
• M2: 540,946 km (0.075 R)
• M3: 986,000 km (0.108 R)
• M4: 1,360,742 km (0.044 R)
• M5: 1,988,904 km (0.114 R)
• M6: 3,951,777 km (0.12 R)
• M7: 4,679,721 km (0.111 R)
• M8: 5,114,901 km (0.061 R)
• M9: 5,453,890 km (0.101 R)
• M10: 5,807,838 km (0.108 R)
• M11: 6,655,160 km (0.088 R)
• M12: 7,231,411 km (0.077 R)
• M13: 9,162,271 km (0.044 R)

Planet 7 - Gas Giant

Semi-Major Axis: 1.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 506.8

Radius: 9.3

Gravity: 5.86 G

Time & Orbit

Eccentricity (e): 0.087

Orbit Range: 1.8 AU - 2.14 AU

Year: 1758 Days

Day: 11.5 Hours

Environment

Temp: -191 °C

Axial Tilt: 37 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 13,605,167 km

• M1: 115,639 km (0.104 R)
• M2: 414,984 km (0.1 R)
• M3: 709,094 km (0.085 R)
• M4: 1,195,736 km (0.089 R)
• M5: 1,507,199 km (0.072 R)
• M6: 1,873,713 km (0.033 R)
• M7: 2,216,292 km (0.055 R)
• M8: 2,561,564 km (0.108 R)
• M9: 3,284,122 km (0.077 R)
• M10: 3,752,214 km (0.114 R)
• M11: 5,108,767 km (0.103 R)
• M12: 5,852,119 km (0.044 R)
• M13: 6,250,049 km (0.072 R)
• M14: 7,717,754 km (0.101 R)
• M15: 8,254,511 km (0.101 R)
• M16: 10,114,312 km (0.076 R)
• M17: 10,585,545 km (0.088 R)
• M18: 12,465,243 km (0.111 R)
• M19: 12,928,846 km (0.079 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 188 - 13,740 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit