🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.62 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.42

Radius: 1.15

Gravity: 1.07 G

Time & Orbit

Eccentricity (e): 0.064

Orbit Range: 0.58 AU - 0.66 AU

Year: 320 Days

Day: 31.6 Hours

Environment

Temp: -130 °C

Axial Tilt: 41 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 1.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 333.2

Radius: 8.9

Gravity: 4.21 G

Time & Orbit

Eccentricity (e): 0.147

Orbit Range: 0.9 AU - 1.2 AU

Year: 706 Days

Day: 6.1 Hours

Environment

Temp: -160 °C

Axial Tilt: 35.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 54,977,256 km

• M1: 110,702 km (0.099 R)
• M2: 431,141 km (0.086 R)
• M3: 710,590 km (0.12 R)
• M4: 1,052,720 km (0.085 R)
• M5: 1,351,617 km (0.096 R)
• M6: 1,692,850 km (0.074 R)
• M7: 2,013,737 km (0.101 R)
• M8: 2,299,618 km (0.111 R)
• M9: 2,758,884 km (0.075 R)
• M10: 3,561,327 km (0.114 R)
• M11: 4,393,390 km (0.08 R)
• M12: 4,894,693 km (0.072 R)
• M13: 5,639,241 km (0.112 R)
• M14: 6,120,946 km (0.098 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 904.4

Radius: 9.1

Gravity: 10.92 G

Time & Orbit

Eccentricity (e): 0.066

Orbit Range: 1.03 AU - 1.17 AU

Year: 757 Days

Day: 6.3 Hours

Environment

Temp: -156 °C

Axial Tilt: 33.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 54,977,256 km

• M1: 113,246 km (0.075 R)
• M2: 525,537 km (0.102 R)
• M3: 1,121,984 km (0.096 R)
• M4: 1,528,591 km (0.044 R)
• M5: 2,031,988 km (0.113 R)
• M6: 2,572,784 km (0.067 R)
• M7: 3,127,194 km (0.12 R)
• M8: 3,482,489 km (0.099 R)
• M9: 3,849,452 km (0.091 R)
• M10: 4,783,691 km (0.107 R)
• M11: 5,126,719 km (0.049 R)
• M12: 5,741,417 km (0.05 R)
• M13: 6,534,435 km (0.108 R)
• M14: 7,210,617 km (0.068 R)
• M15: 8,570,612 km (0.106 R)
• M16: 8,861,879 km (0.116 R)
• M17: 9,187,254 km (0.08 R)

Planet 4 - Gas Giant

Semi-Major Axis: 4.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 477.7

Radius: 8.5

Gravity: 6.61 G

Time & Orbit

Eccentricity (e): 0.054

Orbit Range: 3.94 AU - 4.4 AU

Year: 5586 Days

Day: 10.4 Hours

Environment

Temp: -215 °C

Axial Tilt: 37.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 54,977,256 km

• M1: 131,048 km (0.111 R)
• M2: 411,544 km (0.068 R)
• M3: 799,002 km (0.096 R)
• M4: 1,423,723 km (0.117 R)
• M5: 1,822,850 km (0.073 R)
• M6: 3,916,173 km (0.119 R)
• M7: 4,215,070 km (0.098 R)
• M8: 4,755,716 km (0.118 R)
• M9: 5,453,590 km (0.067 R)
• M10: 5,827,136 km (0.117 R)
• M11: 6,248,553 km (0.083 R)
• M12: 6,787,555 km (0.082 R)
• M13: 7,118,764 km (0.045 R)
• M14: 7,813,796 km (0.074 R)
• M15: 8,477,263 km (0.099 R)
• M16: 10,257,178 km (0.095 R)
• M17: 11,188,874 km (0.106 R)
• M18: 11,840,671 km (0.112 R)
• M19: 13,373,750 km (0.111 R)
• M20: 13,948,356 km (0.07 R)
• M21: 16,590,105 km (0.108 R)
• M22: 17,070,763 km (0.098 R)
• M23: 19,349,587 km (0.086 R)
• M24: 22,401,084 km (0.086 R)
• M25: 25,361,776 km (0.049 R)
• M26: 25,999,811 km (0.114 R)
• M27: 27,474,397 km (0.04 R)

Planet 5 - Ice Giant

Semi-Major Axis: 8.66 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 369.8

Radius: 7.5

Gravity: 6.57 G

Time & Orbit

Eccentricity (e): 0.127

Orbit Range: 7.56 AU - 9.76 AU

Year: 16718 Days

Day: 23.7 Hours

Environment

Temp: -220 °C

Axial Tilt: 14.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 54,977,256 km

• M1: 93,349 km (0.044 R)
• M2: 358,137 km (0.042 R)
• M3: 920,326 km (0.092 R)
• M4: 1,445,714 km (0.119 R)
• M5: 2,138,202 km (0.089 R)
• M6: 5,195,235 km (0.101 R)
• M7: 6,316,022 km (0.101 R)
• M8: 6,871,778 km (0.088 R)
• M9: 7,677,662 km (0.115 R)
• M10: 8,218,009 km (0.05 R)
• M11: 9,887,522 km (0.096 R)
• M12: 10,418,744 km (0.078 R)
• M13: 11,948,232 km (0.092 R)
• M14: 12,247,129 km (0.029 R)
• M15: 16,600,277 km (0.117 R)
• M16: 17,274,515 km (0.05 R)
• M17: 19,161,542 km (0.065 R)
• M18: 22,243,558 km (0.072 R)
• M19: 22,878,900 km (0.119 R)
• M20: 25,345,320 km (0.098 R)
• M21: 29,153,035 km (0.107 R)
• M22: 29,586,120 km (0.119 R)
• M23: 30,687,909 km (0.097 R)
• M24: 32,623,256 km (0.108 R)
• M25: 32,973,016 km (0.101 R)
• M26: 40,371,080 km (0.097 R)
• M27: 43,390,713 km (0.105 R)
• M28: 45,243,931 km (0.114 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 305 - 10,579 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit