🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.55 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.96

Radius: 1.9

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.059

Orbit Range: 0.52 AU - 0.58 AU

Year: 263 Days

Day: 25.9 Hours

Environment

Temp: -128 °C

Axial Tilt: 0.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 82,791,433 km

• M1: 169,345 km (0.052 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.58 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.68

Radius: 1.85

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 0.46 AU - 0.7 AU

Year: 285 Days

Day: 16.7 Hours

Environment

Temp: -135 °C

Axial Tilt: 44.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 82,791,433 km

• M1: 685,158 km (0.105 R)

Asteroid Belt

Center: 0.85 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 3 - Gas Giant

Semi-Major Axis: 1.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 586.8

Radius: 10.2

Gravity: 5.64 G

Time & Orbit

Eccentricity (e): 0.246

Orbit Range: 0.84 AU - 1.38 AU

Year: 755 Days

Day: 14.3 Hours

Environment

Temp: -173 °C

Axial Tilt: 13.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 82,791,433 km

• M1: 127,158 km (0.094 R)
• M2: 491,130 km (0.088 R)
• M3: 1,547,889 km (0.115 R)
• M4: 1,882,240 km (0.093 R)
• M5: 2,610,932 km (0.109 R)
• M6: 3,450,624 km (0.055 R)
• M7: 3,781,834 km (0.092 R)
• M8: 5,008,836 km (0.115 R)
• M9: 6,545,655 km (0.038 R)
• M10: 8,108,653 km (0.032 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 965.3

Radius: 8.8

Gravity: 12.47 G

Time & Orbit

Eccentricity (e): 0.228

Orbit Range: 1.42 AU - 2.26 AU

Year: 1612 Days

Day: 11.6 Hours

Environment

Temp: -190 °C

Axial Tilt: 38.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 82,791,433 km

• M1: 110,104 km (0.087 R)
• M2: 403,615 km (0.048 R)
• M3: 693,087 km (0.07 R)
• M4: 1,025,493 km (0.039 R)
• M5: 1,446,611 km (0.085 R)
• M6: 1,814,024 km (0.119 R)
• M7: 2,344,498 km (0.031 R)
• M8: 3,438,657 km (0.083 R)
• M9: 3,767,922 km (0.103 R)
• M10: 4,550,767 km (0.115 R)
• M11: 5,369,516 km (0.073 R)
• M12: 6,308,393 km (0.103 R)
• M13: 6,592,180 km (0.09 R)
• M14: 8,602,476 km (0.078 R)
• M15: 9,081,189 km (0.092 R)
• M16: 10,162,183 km (0.079 R)
• M17: 10,916,755 km (0.088 R)
• M18: 11,902,007 km (0.08 R)
• M19: 12,416,474 km (0.031 R)
• M20: 14,623,491 km (0.091 R)
• M21: 15,305,807 km (0.101 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 445.5

Radius: 9.6

Gravity: 4.83 G

Time & Orbit

Eccentricity (e): 0.007

Orbit Range: 2.26 AU - 2.3 AU

Year: 2223 Days

Day: 9.4 Hours

Environment

Temp: -190 °C

Axial Tilt: 39.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 82,791,433 km

• M1: 119,379 km (0.091 R)
• M2: 495,767 km (0.114 R)
• M3: 866,770 km (0.117 R)
• M4: 1,255,725 km (0.101 R)
• M5: 1,669,213 km (0.08 R)
• M6: 2,172,610 km (0.101 R)
• M7: 3,224,732 km (0.079 R)
• M8: 3,619,221 km (0.111 R)
• M9: 4,486,141 km (0.102 R)
• M10: 4,936,730 km (0.119 R)
• M11: 5,553,821 km (0.111 R)
• M12: 6,447,219 km (0.087 R)
• M13: 7,545,866 km (0.106 R)
• M14: 8,425,502 km (0.104 R)
• M15: 9,470,592 km (0.085 R)
• M16: 10,041,607 km (0.069 R)
• M17: 10,458,387 km (0.12 R)
• M18: 12,879,180 km (0.119 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 174

Radius: 9.6

Gravity: 1.89 G

Time & Orbit

Eccentricity (e): 0.17

Orbit Range: 2.6 AU - 3.66 AU

Year: 3575 Days

Day: 12.7 Hours

Environment

Temp: -204 °C

Axial Tilt: 34.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 82,791,433 km

• M1: 120,725 km (0.114 R)
• M2: 459,714 km (0.094 R)
• M3: 4,305,576 km (0.081 R)
• M4: 5,235,028 km (0.109 R)
• M5: 8,639,277 km (0.093 R)
• M6: 10,249,249 km (0.082 R)
• M7: 11,217,447 km (0.097 R)
• M8: 11,704,687 km (0.032 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 842.7

Radius: 14.9

Gravity: 3.8 G

Time & Orbit

Eccentricity (e): 0.157

Orbit Range: 4.65 AU - 6.39 AU

Year: 8374 Days

Day: 6.1 Hours

Environment

Temp: -219 °C

Axial Tilt: 29 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 82,791,433 km

• M1: 185,352 km (0.073 R)
• M2: 797,955 km (0.089 R)
• M3: 1,340,098 km (0.118 R)
• M4: 2,235,591 km (0.105 R)
• M5: 3,294,444 km (0.066 R)
• M6: 4,813,611 km (0.11 R)
• M7: 8,294,903 km (0.118 R)
• M8: 8,824,629 km (0.11 R)
• M9: 10,248,651 km (0.107 R)
• M10: 13,731,140 km (0.103 R)
• M11: 14,791,789 km (0.099 R)
• M12: 15,639,410 km (0.081 R)
• M13: 16,866,113 km (0.063 R)
• M14: 19,743,029 km (0.115 R)
• M15: 20,530,363 km (0.103 R)
• M16: 22,252,384 km (0.114 R)
• M17: 23,803,415 km (0.089 R)
• M18: 39,147,818 km (0.111 R)
• M19: 42,825,981 km (0.112 R)
• M20: 45,221,492 km (0.039 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.11 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 791.9

Radius: 6.2

Gravity: 20.6 G

Time & Orbit

Eccentricity (e): 0.061

Orbit Range: 8.55 AU - 9.67 AU

Year: 17754 Days

Day: 23.6 Hours

Environment

Temp: -234 °C

Axial Tilt: 34 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 82,791,433 km

• M1: 77,043 km (0.05 R)
• M2: 574,605 km (0.063 R)
• M3: 779,106 km (0.113 R)
• M4: 973,583 km (0.113 R)
• M5: 1,214,585 km (0.08 R)
• M6: 1,711,998 km (0.111 R)
• M7: 2,629,931 km (0.1 R)
• M8: 3,318,230 km (0.113 R)
• M9: 4,792,817 km (0.12 R)
• M10: 5,267,640 km (0.087 R)
• M11: 5,497,273 km (0.103 R)
• M12: 6,058,863 km (0.101 R)
• M13: 6,268,450 km (0.07 R)
• M14: 11,108,988 km (0.09 R)
• M15: 11,487,172 km (0.113 R)
• M16: 13,866,825 km (0.093 R)
• M17: 16,232,566 km (0.037 R)
• M18: 17,979,869 km (0.092 R)
• M19: 19,032,739 km (0.054 R)
• M20: 21,941,819 km (0.078 R)
• M21: 29,935,282 km (0.119 R)
• M22: 30,790,683 km (0.086 R)
• M23: 33,847,117 km (0.093 R)
• M24: 34,641,631 km (0.078 R)
• M25: 41,601,971 km (0.103 R)
• M26: 41,904,308 km (0.078 R)
• M27: 49,438,955 km (0.066 R)
• M28: 53,434,714 km (0.089 R)
• M29: 57,266,364 km (0.032 R)
• M30: 60,305,744 km (0.104 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.88 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 877.9

Radius: 3.5

Gravity: 71.67 G

Time & Orbit

Eccentricity (e): 0.114

Orbit Range: 8.75 AU - 11.01 AU

Year: 20052 Days

Day: 18.9 Hours

Environment

Temp: -225 °C

Axial Tilt: 7.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 82,791,433 km

• M1: 52,658 km (0.05 R)
• M2: 166,054 km (0.105 R)
• M3: 401,820 km (0.06 R)
• M4: 1,103,733 km (0.041 R)
• M5: 1,548,787 km (0.097 R)
• M6: 1,802,206 km (0.073 R)
• M7: 2,580,862 km (0.044 R)
• M8: 2,704,430 km (0.071 R)
• M9: 3,154,421 km (0.096 R)
• M10: 3,840,177 km (0.067 R)
• M11: 14,810,189 km (0.118 R)
• M12: 17,298,750 km (0.067 R)
• M13: 21,939,425 km (0.091 R)
• M14: 24,487,975 km (0.074 R)
• M15: 31,969,963 km (0.058 R)
• M16: 32,233,853 km (0.089 R)
• M17: 37,089,501 km (0.097 R)
• M18: 44,838,521 km (0.114 R)
• M19: 53,043,815 km (0.099 R)
• M20: 54,909,898 km (0.059 R)
• M21: 61,785,267 km (0.107 R)
• M22: 80,821,297 km (0.112 R)

Kuiper Belt

Range: 30 - 48 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 181 - 16,163 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit