🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.53 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.69

Radius: 1.86

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.146

Orbit Range: 0.45 AU - 0.61 AU

Year: 249 Days

Day: 20.1 Hours

Environment

Temp: -122 °C

Axial Tilt: 38.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 75,101,553 km

• M1: 47,871 km (0.066 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.63 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.14

Radius: 0.46

Gravity: 0.66 G

Time & Orbit

Eccentricity (e): 0.066

Orbit Range: 0.59 AU - 0.67 AU

Year: 323 Days

Day: 42.3 Hours

Environment

Temp: -123 °C

Axial Tilt: 17 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 75,101,553 km

• M1: 17,054 km (0.092 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 923.5

Radius: 8.5

Gravity: 12.78 G

Time & Orbit

Eccentricity (e): 0.201

Orbit Range: 0.67 AU - 1.01 AU

Year: 497 Days

Day: 10.5 Hours

Environment

Temp: -158 °C

Axial Tilt: 9.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 75,101,553 km

• M1: 105,766 km (0.095 R)
• M2: 410,646 km (0.108 R)
• M3: 739,911 km (0.105 R)
• M4: 1,108,969 km (0.042 R)
• M5: 1,446,611 km (0.085 R)
• M6: 2,133,415 km (0.098 R)
• M7: 2,630,080 km (0.1 R)
• M8: 2,917,607 km (0.09 R)
• M9: 3,250,911 km (0.046 R)
• M10: 4,008,774 km (0.103 R)
• M11: 4,467,890 km (0.097 R)
• M12: 5,473,487 km (0.053 R)
• M13: 5,797,217 km (0.079 R)
• M14: 6,483,273 km (0.12 R)
• M15: 6,928,625 km (0.05 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 329.3

Radius: 13.7

Gravity: 1.75 G

Time & Orbit

Eccentricity (e): 0.091

Orbit Range: 0.94 AU - 1.12 AU

Year: 675 Days

Day: 6.5 Hours

Environment

Temp: -158 °C

Axial Tilt: 32.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 75,101,553 km

• M1: 171,589 km (0.107 R)
• M2: 635,193 km (0.06 R)
• M3: 1,150,408 km (0.118 R)
• M4: 1,856,210 km (0.12 R)
• M5: 2,999,437 km (0.037 R)
• M6: 3,435,814 km (0.109 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.48 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 184.4

Radius: 13

Gravity: 1.09 G

Time & Orbit

Eccentricity (e): 0.056

Orbit Range: 2.34 AU - 2.62 AU

Year: 2522 Days

Day: 5.6 Hours

Environment

Temp: -193 °C

Axial Tilt: 14.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 75,101,553 km

• M1: 165,605 km (0.108 R)
• M2: 671,096 km (0.089 R)
• M3: 1,130,960 km (0.099 R)
• M4: 2,325,798 km (0.052 R)
• M5: 4,693,334 km (0.106 R)
• M6: 5,122,081 km (0.092 R)
• M7: 5,577,158 km (0.114 R)
• M8: 6,592,928 km (0.082 R)
• M9: 7,208,523 km (0.066 R)
• M10: 8,357,135 km (0.104 R)
• M11: 9,501,260 km (0.106 R)
• M12: 11,083,557 km (0.092 R)
• M13: 11,812,996 km (0.081 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 378.1

Radius: 14.4

Gravity: 1.82 G

Time & Orbit

Eccentricity (e): 0.209

Orbit Range: 2 AU - 3.06 AU

Year: 2598 Days

Day: 11.3 Hours

Environment

Temp: -195 °C

Axial Tilt: 38 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 75,101,553 km

• M1: 179,069 km (0.078 R)
• M2: 1,013,974 km (0.085 R)
• M3: 1,518,418 km (0.103 R)
• M4: 2,007,603 km (0.076 R)
• M5: 2,841,911 km (0.111 R)
• M6: 3,861,570 km (0.09 R)
• M7: 5,004,797 km (0.095 R)
• M8: 5,702,820 km (0.091 R)
• M9: 7,378,466 km (0.115 R)
• M10: 8,561,337 km (0.106 R)
• M11: 11,302,119 km (0.112 R)
• M12: 11,758,692 km (0.058 R)
• M13: 12,587,314 km (0.108 R)
• M14: 14,185,618 km (0.108 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.89 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 899.5

Radius: 4.6

Gravity: 42.51 G

Time & Orbit

Eccentricity (e): 0.247

Orbit Range: 6.69 AU - 11.09 AU

Year: 17115 Days

Day: 17.8 Hours

Environment

Temp: -238 °C

Axial Tilt: 44.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 75,101,553 km

• M1: 57,296 km (0.066 R)
• M2: 290,818 km (0.103 R)
• M3: 703,708 km (0.119 R)
• M4: 2,336,420 km (0.042 R)
• M5: 3,471,718 km (0.115 R)
• M6: 4,474,622 km (0.07 R)
• M7: 4,968,893 km (0.103 R)
• M8: 6,065,446 km (0.087 R)
• M9: 8,099,827 km (0.119 R)
• M10: 10,070,629 km (0.103 R)
• M11: 10,854,373 km (0.104 R)
• M12: 17,683,964 km (0.073 R)
• M13: 20,857,085 km (0.074 R)
• M14: 25,358,634 km (0.067 R)
• M15: 27,603,051 km (0.114 R)
• M16: 32,098,018 km (0.107 R)
• M17: 34,585,083 km (0.109 R)
• M18: 34,854,060 km (0.089 R)
• M19: 38,624,225 km (0.083 R)
• M20: 46,633,546 km (0.079 R)
• M21: 48,290,941 km (0.084 R)
• M22: 50,331,007 km (0.086 R)
• M23: 56,795,131 km (0.083 R)
• M24: 64,398,293 km (0.062 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: 267 - 14,107 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit