🌌 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: 0.54 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.17

Radius: 1.06

Gravity: 1.04 G

Time & Orbit

Eccentricity (e): 0.084

Orbit Range: 0.49 AU - 0.59 AU

Year: 260 Days

Day: 21.7 Hours

Environment

Temp: -130 °C

Axial Tilt: 0.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.61 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.37

Radius: 1.8

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.089

Orbit Range: 0.56 AU - 0.66 AU

Year: 313 Days

Day: 43.4 Hours

Environment

Temp: -130 °C

Axial Tilt: 25 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 69,395,315 km

• M1: 175,030 km (0.056 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 114

Radius: 8.7

Gravity: 1.51 G

Time & Orbit

Eccentricity (e): 0.025

Orbit Range: 0.78 AU - 0.82 AU

Year: 469 Days

Day: 11.7 Hours

Environment

Temp: -145 °C

Axial Tilt: 5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 69,395,315 km

• M1: 108,758 km (0.095 R)
• M2: 414,984 km (0.095 R)
• M3: 888,611 km (0.062 R)
• M4: 1,960,330 km (0.086 R)
• M5: 2,570,989 km (0.085 R)
• M6: 2,947,976 km (0.106 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 891.6

Radius: 8.9

Gravity: 11.26 G

Time & Orbit

Eccentricity (e): 0.108

Orbit Range: 0.86 AU - 1.06 AU

Year: 617 Days

Day: 14.5 Hours

Environment

Temp: -150 °C

Axial Tilt: 38.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 69,395,315 km

• M1: 110,702 km (0.095 R)
• M2: 570,716 km (0.079 R)
• M3: 1,088,474 km (0.069 R)
• M4: 1,541,606 km (0.043 R)
• M5: 1,940,434 km (0.117 R)
• M6: 2,273,888 km (0.075 R)
• M7: 3,107,148 km (0.063 R)
• M8: 3,580,027 km (0.088 R)
• M9: 4,191,882 km (0.071 R)
• M10: 4,653,840 km (0.075 R)
• M11: 5,437,583 km (0.098 R)
• M12: 5,890,117 km (0.083 R)
• M13: 6,449,613 km (0.104 R)
• M14: 7,176,359 km (0.097 R)
• M15: 7,490,964 km (0.072 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 910.1

Radius: 9.6

Gravity: 9.88 G

Time & Orbit

Eccentricity (e): 0.145

Orbit Range: 0.89 AU - 1.19 AU

Year: 696 Days

Day: 9.3 Hours

Environment

Temp: -151 °C

Axial Tilt: 2.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 69,395,315 km

• M1: 121,324 km (0.075 R)
• M2: 493,224 km (0.107 R)
• M3: 958,773 km (0.098 R)
• M4: 1,800,111 km (0.075 R)
• M5: 2,490,356 km (0.117 R)
• M6: 3,021,129 km (0.119 R)
• M7: 3,415,619 km (0.119 R)
• M8: 3,770,614 km (0.092 R)
• M9: 4,087,612 km (0.107 R)
• M10: 4,741,505 km (0.085 R)
• M11: 5,970,750 km (0.12 R)
• M12: 6,812,537 km (0.075 R)
• M13: 8,913,939 km (0.047 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 590.6

Radius: 8.3

Gravity: 8.57 G

Time & Orbit

Eccentricity (e): 0.078

Orbit Range: 1.07 AU - 1.25 AU

Year: 820 Days

Day: 13.1 Hours

Environment

Temp: -157 °C

Axial Tilt: 36.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 69,395,315 km

• M1: 103,372 km (0.034 R)
• M2: 434,582 km (0.101 R)
• M3: 706,700 km (0.118 R)
• M4: 1,032,076 km (0.095 R)
• M5: 1,549,236 km (0.087 R)
• M6: 2,604,349 km (0.073 R)
• M7: 3,748,923 km (0.083 R)
• M8: 4,217,314 km (0.042 R)
• M9: 4,724,151 km (0.102 R)
• M10: 5,198,227 km (0.12 R)
• M11: 5,607,527 km (0.079 R)
• M12: 7,698,456 km (0.105 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 79.8

Radius: 8.4

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.249

Orbit Range: 2.46 AU - 4.1 AU

Year: 3897 Days

Day: 9.3 Hours

Environment

Temp: -210 °C

Axial Tilt: 1.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 69,395,315 km

• M1: 124,316 km (0.102 R)
• M2: 663,317 km (0.079 R)
• M3: 3,521,534 km (0.062 R)
• M4: 4,389,052 km (0.109 R)
• M5: 4,765,889 km (0.118 R)
• M6: 5,308,630 km (0.111 R)
• M7: 6,210,855 km (0.081 R)
• M8: 10,034,427 km (0.058 R)
• M9: 10,857,963 km (0.054 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.3 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 600.5

Radius: 5.4

Gravity: 20.59 G

Time & Orbit

Eccentricity (e): 0.107

Orbit Range: 8.3 AU - 10.3 AU

Year: 18605 Days

Day: 22.1 Hours

Environment

Temp: -227 °C

Axial Tilt: 44.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 69,395,315 km

• M1: 67,169 km (0.078 R)
• M2: 372,947 km (0.115 R)
• M3: 718,369 km (0.089 R)
• M4: 955,482 km (0.097 R)
• M5: 1,137,393 km (0.12 R)
• M6: 1,572,872 km (0.11 R)
• M7: 1,939,088 km (0.058 R)
• M8: 2,172,759 km (0.108 R)
• M9: 2,650,276 km (0.092 R)
• M10: 3,116,722 km (0.119 R)
• M11: 3,494,157 km (0.1 R)
• M12: 5,464,661 km (0.115 R)
• M13: 6,217,736 km (0.105 R)
• M14: 6,469,360 km (0.081 R)
• M15: 6,859,362 km (0.109 R)
• M16: 7,219,144 km (0.103 R)
• M17: 7,927,640 km (0.085 R)
• M18: 9,048,876 km (0.049 R)
• M19: 9,647,567 km (0.11 R)
• M20: 11,413,869 km (0.08 R)
• M21: 14,018,068 km (0.099 R)
• M22: 14,597,311 km (0.109 R)
• M23: 15,267,809 km (0.107 R)
• M24: 16,589,955 km (0.088 R)
• M25: 17,319,993 km (0.067 R)
• M26: 24,775,801 km (0.037 R)
• M27: 31,717,741 km (0.12 R)
• M28: 32,338,273 km (0.086 R)
• M29: 33,093,742 km (0.116 R)
• M30: 34,770,435 km (0.071 R)
• M31: 38,013,417 km (0.064 R)
• M32: 41,158,264 km (0.104 R)
• M33: 42,793,817 km (0.109 R)
• M34: 49,603,363 km (0.094 R)
• M35: 50,945,106 km (0.045 R)
• M36: 55,115,296 km (0.033 R)
• M37: 56,373,115 km (0.055 R)
• M38: 68,360,542 km (0.034 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 445 - 14,423 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit