🌌 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: 4.05

Radius: 1.75

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.182

Orbit Range: 0.44 AU - 0.64 AU

Year: 256 Days

Day: 16.7 Hours

Environment

Temp: -119 °C

Axial Tilt: 36.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 530.6

Radius: 9.7

Gravity: 5.64 G

Time & Orbit

Eccentricity (e): 0.184

Orbit Range: 0.74 AU - 1.08 AU

Year: 561 Days

Day: 13.3 Hours

Environment

Temp: -146 °C

Axial Tilt: 19.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 27,811,700 km

• M1: 120,576 km (0.047 R)
• M2: 498,759 km (0.067 R)
• M3: 940,223 km (0.039 R)
• M4: 1,348,625 km (0.084 R)
• M5: 1,665,174 km (0.062 R)
• M6: 2,040,515 km (0.081 R)
• M7: 2,663,590 km (0.113 R)
• M8: 3,263,627 km (0.056 R)
• M9: 3,964,942 km (0.115 R)
• M10: 4,610,906 km (0.05 R)
• M11: 5,176,834 km (0.057 R)
• M12: 5,788,241 km (0.089 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 864.5

Radius: 9.5

Gravity: 9.58 G

Time & Orbit

Eccentricity (e): 0.055

Orbit Range: 1.02 AU - 1.14 AU

Year: 725 Days

Day: 12.5 Hours

Environment

Temp: -168 °C

Axial Tilt: 3.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 27,811,700 km

• M1: 118,182 km (0.094 R)
• M2: 414,835 km (0.095 R)
• M3: 726,148 km (0.09 R)
• M4: 1,411,306 km (0.071 R)
• M5: 1,798,615 km (0.074 R)
• M6: 2,535,983 km (0.087 R)
• M7: 3,062,568 km (0.053 R)
• M8: 3,476,355 km (0.045 R)
• M9: 4,018,797 km (0.107 R)
• M10: 4,400,122 km (0.079 R)
• M11: 5,125,672 km (0.117 R)
• M12: 5,441,323 km (0.052 R)
• M13: 6,091,326 km (0.081 R)
• M14: 7,311,596 km (0.066 R)
• M15: 8,127,952 km (0.094 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 852.5

Radius: 11.1

Gravity: 6.92 G

Time & Orbit

Eccentricity (e): 0.001

Orbit Range: 2.23 AU - 2.23 AU

Year: 2150 Days

Day: 8.1 Hours

Environment

Temp: -200 °C

Axial Tilt: 31.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 27,811,700 km

• M1: 138,079 km (0.055 R)
• M2: 567,724 km (0.112 R)
• M3: 966,701 km (0.092 R)
• M4: 1,349,074 km (0.052 R)
• M5: 1,745,658 km (0.093 R)
• M6: 2,106,488 km (0.068 R)
• M7: 2,720,587 km (0.051 R)
• M8: 3,160,554 km (0.068 R)
• M9: 3,758,796 km (0.099 R)
• M10: 4,145,058 km (0.116 R)
• M11: 4,708,743 km (0.108 R)
• M12: 5,539,310 km (0.057 R)
• M13: 5,887,723 km (0.119 R)
• M14: 6,357,162 km (0.116 R)
• M15: 6,767,359 km (0.085 R)
• M16: 7,824,717 km (0.109 R)
• M17: 8,264,385 km (0.092 R)
• M18: 10,007,649 km (0.101 R)
• M19: 11,298,529 km (0.056 R)
• M20: 13,085,924 km (0.118 R)
• M21: 15,441,941 km (0.062 R)
• M22: 18,394,704 km (0.084 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 472.6

Radius: 8.7

Gravity: 6.24 G

Time & Orbit

Eccentricity (e): 0.099

Orbit Range: 2.05 AU - 2.51 AU

Year: 2223 Days

Day: 10.9 Hours

Environment

Temp: -204 °C

Axial Tilt: 28.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 27,811,700 km

• M1: 108,159 km (0.104 R)
• M2: 436,227 km (0.038 R)
• M3: 1,002,755 km (0.067 R)
• M4: 1,459,178 km (0.111 R)
• M5: 1,762,263 km (0.104 R)
• M6: 2,253,393 km (0.109 R)
• M7: 2,906,687 km (0.027 R)
• M8: 3,294,145 km (0.099 R)
• M9: 4,004,286 km (0.118 R)
• M10: 5,267,042 km (0.107 R)
• M11: 5,585,685 km (0.105 R)
• M12: 6,671,616 km (0.095 R)
• M13: 6,990,858 km (0.089 R)
• M14: 7,460,595 km (0.065 R)
• M15: 7,921,806 km (0.1 R)
• M16: 8,869,508 km (0.078 R)
• M17: 9,420,328 km (0.098 R)
• M18: 9,959,329 km (0.077 R)
• M19: 10,447,766 km (0.111 R)
• M20: 11,510,210 km (0.084 R)
• M21: 12,126,553 km (0.12 R)
• M22: 14,369,324 km (0.111 R)
• M23: 14,993,297 km (0.067 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 742.2

Radius: 8.3

Gravity: 10.77 G

Time & Orbit

Eccentricity (e): 0.19

Orbit Range: 2.84 AU - 4.18 AU

Year: 4246 Days

Day: 5.3 Hours

Environment

Temp: -216 °C

Axial Tilt: 37.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 27,811,700 km

• M1: 103,223 km (0.113 R)
• M2: 390,301 km (0.112 R)
• M3: 660,774 km (0.069 R)
• M4: 928,704 km (0.085 R)
• M5: 1,552,826 km (0.097 R)
• M6: 1,889,870 km (0.118 R)
• M7: 2,156,154 km (0.083 R)
• M8: 2,871,232 km (0.11 R)
• M9: 3,244,778 km (0.055 R)
• M10: 3,999,200 km (0.115 R)
• M11: 4,393,989 km (0.077 R)
• M12: 4,688,098 km (0.119 R)
• M13: 5,481,565 km (0.116 R)
• M14: 5,851,970 km (0.03 R)
• M15: 7,961,150 km (0.107 R)
• M16: 8,362,521 km (0.101 R)
• M17: 8,700,911 km (0.117 R)
• M18: 10,662,289 km (0.084 R)
• M19: 12,266,577 km (0.07 R)
• M20: 13,920,830 km (0.113 R)
• M21: 14,450,107 km (0.115 R)
• M22: 16,234,660 km (0.075 R)
• M23: 17,482,606 km (0.09 R)
• M24: 18,985,765 km (0.097 R)
• M25: 19,768,760 km (0.098 R)
• M26: 20,235,506 km (0.092 R)
• M27: 26,664,175 km (0.078 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: 271 - 14,075 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit