🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.51 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.76

Radius: 1.25

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.166

Orbit Range: 0.43 AU - 0.59 AU

Year: 235 Days

Day: 12.7 Hours

Environment

Temp: -112 °C

Axial Tilt: 16.8 °

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: 149.1

Radius: 14.9

Gravity: 0.67 G

Time & Orbit

Eccentricity (e): 0.019

Orbit Range: 0.89 AU - 0.93 AU

Year: 561 Days

Day: 13.5 Hours

Environment

Temp: -164 °C

Axial Tilt: 46.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 47,854,705 km

• M1: 185,352 km (0.056 R)
• M2: 666,159 km (0.09 R)
• M3: 1,238,820 km (0.082 R)
• M4: 1,743,114 km (0.033 R)
• M5: 2,291,540 km (0.081 R)
• M6: 2,762,474 km (0.106 R)
• M7: 3,802,329 km (0.11 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 712.1

Radius: 10.8

Gravity: 6.11 G

Time & Orbit

Eccentricity (e): 0.198

Orbit Range: 0.84 AU - 1.26 AU

Year: 695 Days

Day: 11 Hours

Environment

Temp: -153 °C

Axial Tilt: 36.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 47,854,705 km

• M1: 134,339 km (0.11 R)
• M2: 480,359 km (0.063 R)
• M3: 864,975 km (0.034 R)
• M4: 1,448,107 km (0.116 R)
• M5: 2,230,355 km (0.096 R)
• M6: 2,832,187 km (0.086 R)
• M7: 3,920,511 km (0.105 R)
• M8: 4,683,012 km (0.109 R)
• M9: 5,412,750 km (0.1 R)
• M10: 7,098,269 km (0.09 R)
• M11: 7,523,726 km (0.05 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 307.5

Radius: 11.8

Gravity: 2.21 G

Time & Orbit

Eccentricity (e): 0.155

Orbit Range: 1.07 AU - 1.47 AU

Year: 924 Days

Day: 6.3 Hours

Environment

Temp: -175 °C

Axial Tilt: 28 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 47,854,705 km

• M1: 146,905 km (0.073 R)
• M2: 743,801 km (0.04 R)
• M3: 2,093,024 km (0.082 R)
• M4: 2,926,434 km (0.111 R)
• M5: 3,299,531 km (0.098 R)
• M6: 3,786,920 km (0.116 R)
• M7: 4,306,773 km (0.1 R)
• M8: 5,331,818 km (0.056 R)
• M9: 5,799,610 km (0.111 R)
• M10: 6,236,286 km (0.048 R)
• M11: 7,218,696 km (0.104 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 299

Radius: 10

Gravity: 2.99 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 1.46 AU - 1.82 AU

Year: 1356 Days

Day: 12.5 Hours

Environment

Temp: -182 °C

Axial Tilt: 44.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 47,854,705 km

• M1: 124,465 km (0.111 R)
• M2: 496,665 km (0.103 R)
• M3: 904,170 km (0.063 R)
• M4: 1,337,106 km (0.079 R)
• M5: 1,814,772 km (0.045 R)
• M6: 2,327,892 km (0.102 R)
• M7: 2,798,527 km (0.095 R)
• M8: 3,155,767 km (0.097 R)
• M9: 4,602,528 km (0.118 R)
• M10: 5,177,283 km (0.081 R)
• M11: 6,066,044 km (0.12 R)
• M12: 7,452,816 km (0.048 R)
• M13: 9,067,576 km (0.056 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 69.7

Radius: 11.6

Gravity: 0.52 G

Time & Orbit

Eccentricity (e): 0.062

Orbit Range: 1.55 AU - 1.75 AU

Year: 1368 Days

Day: 9.5 Hours

Environment

Temp: -174 °C

Axial Tilt: 27.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 47,854,705 km

• M1: 144,811 km (0.032 R)
• M2: 608,564 km (0.041 R)
• M3: 1,047,185 km (0.119 R)
• M4: 1,628,971 km (0.105 R)
• M5: 3,544,273 km (0.074 R)
• M6: 5,258,216 km (0.028 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 701.1

Radius: 10

Gravity: 7.01 G

Time & Orbit

Eccentricity (e): 0.139

Orbit Range: 2.22 AU - 2.94 AU

Year: 2676 Days

Day: 12.7 Hours

Environment

Temp: -191 °C

Axial Tilt: 8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 47,854,705 km

• M1: 124,765 km (0.117 R)
• M2: 729,738 km (0.092 R)
• M3: 1,054,366 km (0.107 R)
• M4: 1,468,303 km (0.114 R)
• M5: 2,090,032 km (0.102 R)
• M6: 2,469,562 km (0.068 R)
• M7: 3,495,504 km (0.066 R)
• M8: 4,852,207 km (0.066 R)
• M9: 6,039,565 km (0.115 R)
• M10: 7,441,297 km (0.037 R)
• M11: 8,840,337 km (0.083 R)
• M12: 10,064,945 km (0.104 R)
• M13: 12,759,202 km (0.055 R)
• M14: 14,272,086 km (0.112 R)
• M15: 19,349,138 km (0.115 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 869.1

Radius: 13.1

Gravity: 5.06 G

Time & Orbit

Eccentricity (e): 0.028

Orbit Range: 5.57 AU - 5.89 AU

Year: 8856 Days

Day: 11.7 Hours

Environment

Temp: -228 °C

Axial Tilt: 33.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 47,854,705 km

• M1: 162,912 km (0.103 R)
• M2: 728,242 km (0.057 R)
• M3: 1,639,443 km (0.089 R)
• M4: 2,520,425 km (0.118 R)
• M5: 4,115,737 km (0.119 R)
• M6: 5,808,287 km (0.107 R)
• M7: 6,304,952 km (0.113 R)
• M8: 6,791,743 km (0.1 R)
• M9: 8,493,569 km (0.104 R)
• M10: 8,948,645 km (0.086 R)
• M11: 9,809,132 km (0.089 R)
• M12: 10,934,856 km (0.104 R)
• M13: 11,474,306 km (0.071 R)
• M14: 12,144,954 km (0.093 R)
• M15: 14,961,133 km (0.071 R)
• M16: 15,626,694 km (0.076 R)
• M17: 16,311,703 km (0.107 R)
• M18: 16,874,191 km (0.111 R)
• M19: 18,412,506 km (0.108 R)
• M20: 21,347,317 km (0.097 R)
• M21: 22,362,638 km (0.114 R)
• M22: 23,855,924 km (0.081 R)
• M23: 26,748,249 km (0.101 R)
• M24: 32,112,679 km (0.101 R)
• M25: 33,784,136 km (0.069 R)
• M26: 34,930,205 km (0.073 R)
• M27: 38,277,158 km (0.091 R)
• M28: 38,772,178 km (0.067 R)
• M29: 39,396,898 km (0.112 R)
• M30: 42,357,590 km (0.06 R)
• M31: 45,050,052 km (0.066 R)
• M32: 46,158,273 km (0.114 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 353 - 10,710 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit