🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.59

Radius: 1.67

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 0.46 AU - 0.74 AU

Year: 296 Days

Day: 37.7 Hours

Environment

Temp: -130 °C

Axial Tilt: 31.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 43,235,340 km

• M1: 223,649 km (0.1 R)
• M2: 768,933 km (0.068 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 176.7

Radius: 11.3

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.019

Orbit Range: 0.82 AU - 0.86 AU

Year: 489 Days

Day: 14.2 Hours

Environment

Temp: -140 °C

Axial Tilt: 8.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 43,235,340 km

• M1: 144,811 km (0.106 R)
• M2: 593,156 km (0.109 R)
• M3: 1,463,965 km (0.105 R)
• M4: 1,857,557 km (0.113 R)
• M5: 2,322,208 km (0.094 R)
• M6: 2,854,776 km (0.055 R)
• M7: 3,394,226 km (0.071 R)
• M8: 4,059,488 km (0.074 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 790.3

Radius: 13.9

Gravity: 4.09 G

Time & Orbit

Eccentricity (e): 0.018

Orbit Range: 1.21 AU - 1.25 AU

Year: 867 Days

Day: 8.7 Hours

Environment

Temp: -161 °C

Axial Tilt: 29.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 43,235,340 km

• M1: 173,234 km (0.106 R)
• M2: 755,768 km (0.032 R)
• M3: 1,419,235 km (0.109 R)
• M4: 1,899,893 km (0.078 R)
• M5: 2,358,710 km (0.079 R)
• M6: 2,892,475 km (0.06 R)
• M7: 3,338,276 km (0.113 R)
• M8: 3,784,976 km (0.078 R)
• M9: 4,854,301 km (0.108 R)
• M10: 5,929,461 km (0.092 R)
• M11: 6,567,646 km (0.087 R)
• M12: 7,513,852 km (0.063 R)
• M13: 8,159,816 km (0.06 R)
• M14: 8,761,798 km (0.039 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 136.8

Radius: 12.4

Gravity: 0.89 G

Time & Orbit

Eccentricity (e): 0.147

Orbit Range: 2.3 AU - 3.1 AU

Year: 2821 Days

Day: 14.5 Hours

Environment

Temp: -206 °C

Axial Tilt: 24.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 43,235,340 km

• M1: 154,385 km (0.113 R)
• M2: 2,749,609 km (0.056 R)
• M3: 3,157,413 km (0.082 R)
• M4: 4,199,811 km (0.065 R)
• M5: 5,314,913 km (0.103 R)
• M6: 10,354,117 km (0.118 R)
• M7: 10,745,465 km (0.112 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 411.5

Radius: 8.2

Gravity: 6.12 G

Time & Orbit

Eccentricity (e): 0.161

Orbit Range: 3.13 AU - 4.33 AU

Year: 4580 Days

Day: 13.7 Hours

Environment

Temp: -213 °C

Axial Tilt: 6.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 43,235,340 km

• M1: 102,175 km (0.116 R)
• M2: 494,122 km (0.081 R)
• M3: 878,738 km (0.038 R)
• M4: 2,311,736 km (0.105 R)
• M5: 2,969,368 km (0.059 R)
• M6: 3,584,515 km (0.061 R)
• M7: 4,083,274 km (0.075 R)
• M8: 5,041,747 km (0.069 R)
• M9: 5,888,322 km (0.094 R)
• M10: 7,044,564 km (0.11 R)
• M11: 7,659,561 km (0.093 R)
• M12: 8,100,725 km (0.038 R)
• M13: 8,451,532 km (0.087 R)
• M14: 9,108,416 km (0.119 R)
• M15: 9,372,905 km (0.066 R)
• M16: 10,857,514 km (0.119 R)
• M17: 13,248,088 km (0.061 R)
• M18: 21,273,715 km (0.117 R)
• M19: 21,807,480 km (0.12 R)
• M20: 22,418,587 km (0.06 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 310

Radius: 9.2

Gravity: 3.66 G

Time & Orbit

Eccentricity (e): 0.01

Orbit Range: 3.91 AU - 3.99 AU

Year: 4991 Days

Day: 11.1 Hours

Environment

Temp: -218 °C

Axial Tilt: 6.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 43,235,340 km

• M1: 115,490 km (0.118 R)
• M2: 402,119 km (0.073 R)
• M3: 800,797 km (0.071 R)
• M4: 1,093,860 km (0.076 R)
• M5: 2,200,136 km (0.112 R)
• M6: 2,841,911 km (0.092 R)
• M7: 3,429,681 km (0.097 R)
• M8: 4,074,896 km (0.104 R)
• M9: 5,318,952 km (0.069 R)
• M10: 6,413,261 km (0.07 R)
• M11: 6,738,935 km (0.103 R)
• M12: 10,070,480 km (0.108 R)
• M13: 11,303,466 km (0.116 R)
• M14: 11,735,953 km (0.073 R)
• M15: 12,314,747 km (0.085 R)
• M16: 12,680,215 km (0.115 R)
• M17: 13,625,823 km (0.081 R)
• M18: 13,967,654 km (0.045 R)
• M19: 15,710,320 km (0.088 R)
• M20: 16,032,254 km (0.08 R)
• M21: 16,912,189 km (0.118 R)
• M22: 18,115,704 km (0.095 R)
• M23: 20,120,914 km (0.11 R)
• M24: 20,692,527 km (0.037 R)
• M25: 22,135,249 km (0.116 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.69 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 415.3

Radius: 6.9

Gravity: 8.72 G

Time & Orbit

Eccentricity (e): 0.238

Orbit Range: 5.1 AU - 8.28 AU

Year: 11002 Days

Day: 21.8 Hours

Environment

Temp: -230 °C

Axial Tilt: 3.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 43,235,340 km

• M1: 86,318 km (0.085 R)
• M2: 415,732 km (0.098 R)
• M3: 674,836 km (0.115 R)
• M4: 1,408,913 km (0.103 R)
• M5: 2,016,280 km (0.114 R)
• M6: 2,236,189 km (0.12 R)
• M7: 2,567,399 km (0.092 R)
• M8: 2,785,662 km (0.075 R)
• M9: 3,016,342 km (0.065 R)
• M10: 3,991,720 km (0.112 R)
• M11: 4,508,730 km (0.09 R)
• M12: 5,544,546 km (0.113 R)
• M13: 6,582,755 km (0.09 R)
• M14: 7,186,831 km (0.08 R)
• M15: 7,502,333 km (0.115 R)
• M16: 8,418,022 km (0.078 R)
• M17: 8,680,117 km (0.106 R)
• M18: 10,270,343 km (0.065 R)
• M19: 12,661,066 km (0.097 R)
• M20: 13,894,201 km (0.106 R)
• M21: 16,734,167 km (0.08 R)
• M22: 18,952,704 km (0.098 R)
• M23: 19,252,648 km (0.068 R)
• M24: 21,522,197 km (0.114 R)
• M25: 29,792,715 km (0.081 R)
• M26: 38,861,338 km (0.092 R)
• M27: 39,711,353 km (0.097 R)
• M28: 39,956,394 km (0.086 R)
• M29: 41,448,334 km (0.085 R)
• M30: 41,953,825 km (0.089 R)
• M31: 42,591,262 km (0.117 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 180 - 15,584 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit