🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.42 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.83 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.95

Radius: 0.98

Gravity: 0.99 G

Time & Orbit

Eccentricity (e): 0.196

Orbit Range: 0.67 AU - 0.99 AU

Year: 345 Days

Day: 26.6 Hours

Environment

Temp: -65 °C

Axial Tilt: 22.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 62,673,859 km

• M1: 23,786 km (0.118 R)
• M2: 52,509 km (0.083 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.75 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.66

Radius: 0.85

Gravity: 0.91 G

Time & Orbit

Eccentricity (e): 0.214

Orbit Range: 1.38 AU - 2.12 AU

Year: 1057 Days

Day: 30 Hours

Environment

Temp: -119 °C

Axial Tilt: 19.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 1.85 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.04

Radius: 1.02

Gravity: 1 G

Time & Orbit

Eccentricity (e): 0.247

Orbit Range: 1.39 AU - 2.31 AU

Year: 1149 Days

Day: 21 Hours

Environment

Temp: -116 °C

Axial Tilt: 19.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 62,673,859 km

• M1: 23,936 km (0.087 R)

Planet 4 - Gas Giant

Semi-Major Axis: 4.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 424.7

Radius: 9.9

Gravity: 4.33 G

Time & Orbit

Eccentricity (e): 0.138

Orbit Range: 3.9 AU - 5.14 AU

Year: 4387 Days

Day: 6.1 Hours

Environment

Temp: -165 °C

Axial Tilt: 36.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 62,673,859 km

• M1: 123,119 km (0.069 R)
• M2: 435,629 km (0.063 R)
• M3: 877,990 km (0.1 R)
• M4: 1,293,124 km (0.116 R)
• M5: 1,989,652 km (0.082 R)
• M6: 3,110,738 km (0.114 R)
• M7: 4,007,727 km (0.078 R)
• M8: 4,562,885 km (0.118 R)
• M9: 5,219,470 km (0.068 R)
• M10: 6,335,171 km (0.104 R)
• M11: 7,027,061 km (0.098 R)
• M12: 9,106,471 km (0.075 R)
• M13: 10,428,617 km (0.092 R)
• M14: 11,919,061 km (0.076 R)
• M15: 12,278,694 km (0.089 R)
• M16: 15,476,049 km (0.077 R)
• M17: 15,904,498 km (0.067 R)
• M18: 16,785,031 km (0.089 R)
• M19: 17,581,939 km (0.086 R)
• M20: 18,166,417 km (0.107 R)
• M21: 19,934,963 km (0.031 R)
• M22: 21,682,117 km (0.081 R)

Planet 5 - Gas Giant

Semi-Major Axis: 6.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 654.9

Radius: 12.5

Gravity: 4.19 G

Time & Orbit

Eccentricity (e): 0.014

Orbit Range: 6.7 AU - 6.9 AU

Year: 8096 Days

Day: 6.4 Hours

Environment

Temp: -184 °C

Axial Tilt: 18.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 62,673,859 km

• M1: 157,527 km (0.117 R)
• M2: 584,628 km (0.119 R)
• M3: 1,111,363 km (0.12 R)
• M4: 1,847,982 km (0.037 R)
• M5: 2,242,023 km (0.116 R)
• M6: 3,118,368 km (0.089 R)
• M7: 4,081,180 km (0.034 R)
• M8: 4,479,708 km (0.052 R)
• M9: 4,875,095 km (0.102 R)
• M10: 6,377,656 km (0.108 R)
• M11: 7,178,903 km (0.117 R)
• M12: 7,643,404 km (0.101 R)
• M13: 8,378,079 km (0.107 R)
• M14: 13,060,642 km (0.104 R)
• M15: 13,462,612 km (0.086 R)
• M16: 16,248,274 km (0.08 R)
• M17: 19,546,757 km (0.068 R)
• M18: 22,113,408 km (0.1 R)
• M19: 24,722,245 km (0.092 R)
• M20: 30,745,504 km (0.069 R)
• M21: 31,767,257 km (0.088 R)
• M22: 32,917,366 km (0.092 R)
• M23: 36,194,906 km (0.078 R)
• M24: 37,912,588 km (0.11 R)
• M25: 41,017,642 km (0.091 R)

Planet 6 - Gas Giant

Semi-Major Axis: 7.49 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 631.5

Radius: 13.1

Gravity: 3.68 G

Time & Orbit

Eccentricity (e): 0.188

Orbit Range: 6.08 AU - 8.9 AU

Year: 9359 Days

Day: 6.7 Hours

Environment

Temp: -197 °C

Axial Tilt: 23 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 62,673,859 km

• M1: 163,361 km (0.057 R)
• M2: 747,541 km (0.103 R)
• M3: 1,339,799 km (0.117 R)
• M4: 2,343,301 km (0.068 R)
• M5: 2,841,761 km (0.069 R)
• M6: 3,341,418 km (0.11 R)
• M7: 3,925,448 km (0.117 R)
• M8: 4,519,950 km (0.093 R)
• M9: 6,783,815 km (0.116 R)
• M10: 7,806,765 km (0.105 R)
• M11: 8,573,454 km (0.118 R)
• M12: 9,204,009 km (0.114 R)
• M13: 12,040,983 km (0.082 R)
• M14: 13,901,083 km (0.097 R)
• M15: 14,772,491 km (0.064 R)
• M16: 15,286,509 km (0.025 R)
• M17: 15,812,495 km (0.104 R)
• M18: 16,418,666 km (0.094 R)
• M19: 18,625,982 km (0.072 R)
• M20: 21,511,725 km (0.063 R)
• M21: 31,620,203 km (0.035 R)
• M22: 33,235,860 km (0.077 R)
• M23: 36,631,283 km (0.096 R)
• M24: 40,751,507 km (0.097 R)

Planet 7 - Ice Giant

Semi-Major Axis: 14.27 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 252.8

Radius: 7.9

Gravity: 4.05 G

Time & Orbit

Eccentricity (e): 0.121

Orbit Range: 12.54 AU - 16 AU

Year: 24611 Days

Day: 17.7 Hours

Environment

Temp: -209 °C

Axial Tilt: 29.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 62,673,859 km

• M1: 118,781 km (0.109 R)
• M2: 481,705 km (0.119 R)
• M3: 755,469 km (0.056 R)
• M4: 1,052,720 km (0.053 R)
• M5: 1,457,233 km (0.058 R)
• M6: 2,091,528 km (0.084 R)
• M7: 3,116,124 km (0.102 R)
• M8: 4,379,478 km (0.096 R)
• M9: 5,915,249 km (0.107 R)
• M10: 9,520,109 km (0.109 R)
• M11: 10,795,730 km (0.047 R)
• M12: 31,067,738 km (0.089 R)
• M13: 32,985,283 km (0.117 R)
• M14: 40,738,791 km (0.118 R)
• M15: 41,446,688 km (0.104 R)
• M16: 41,732,271 km (0.111 R)
• M17: 48,350,032 km (0.069 R)
• M18: 52,072,476 km (0.096 R)
• M19: 55,634,401 km (0.108 R)
• M20: 55,981,767 km (0.109 R)
• M21: 62,112,438 km (0.111 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 180 - 13,248 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit