🌌 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: 0.56 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.29

Radius: 0.61

Gravity: 0.78 G

Time & Orbit

Eccentricity (e): 0.091

Orbit Range: 0.51 AU - 0.61 AU

Year: 275 Days

Day: 24.3 Hours

Environment

Temp: -131 °C

Axial Tilt: 41.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 784.8

Radius: 11.6

Gravity: 5.83 G

Time & Orbit

Eccentricity (e): 0.173

Orbit Range: 0.65 AU - 0.91 AU

Year: 452 Days

Day: 12.8 Hours

Environment

Temp: -146 °C

Axial Tilt: 15 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 37,307,183 km

• M1: 144,661 km (0.073 R)
• M2: 638,783 km (0.11 R)
• M3: 1,008,738 km (0.096 R)
• M4: 1,562,849 km (0.114 R)
• M5: 3,304,617 km (0.087 R)
• M6: 3,804,124 km (0.11 R)
• M7: 5,260,460 km (0.039 R)
• M8: 5,837,907 km (0.092 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 285.8

Radius: 14.5

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.226

Orbit Range: 0.61 AU - 0.97 AU

Year: 461 Days

Day: 9 Hours

Environment

Temp: -142 °C

Axial Tilt: 35.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 37,307,183 km

• M1: 183,108 km (0.115 R)
• M2: 654,191 km (0.079 R)
• M3: 1,169,257 km (0.081 R)
• M4: 1,886,579 km (0.095 R)
• M5: 2,360,654 km (0.104 R)
• M6: 2,896,065 km (0.072 R)
• M7: 3,783,330 km (0.081 R)
• M8: 4,342,377 km (0.098 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 991.8

Radius: 12.8

Gravity: 6.05 G

Time & Orbit

Eccentricity (e): 0.143

Orbit Range: 1.58 AU - 2.1 AU

Year: 1637 Days

Day: 8.2 Hours

Environment

Temp: -194 °C

Axial Tilt: 6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 37,307,183 km

• M1: 159,172 km (0.101 R)
• M2: 559,346 km (0.088 R)
• M3: 986,448 km (0.107 R)
• M4: 1,575,266 km (0.108 R)
• M5: 2,316,074 km (0.037 R)
• M6: 2,789,402 km (0.098 R)
• M7: 3,262,281 km (0.105 R)
• M8: 3,952,226 km (0.082 R)
• M9: 5,212,139 km (0.093 R)
• M10: 5,910,911 km (0.109 R)
• M11: 7,495,751 km (0.075 R)
• M12: 9,248,589 km (0.102 R)
• M13: 11,373,926 km (0.109 R)
• M14: 12,229,327 km (0.091 R)
• M15: 13,635,098 km (0.092 R)
• M16: 14,735,540 km (0.12 R)
• M17: 15,191,963 km (0.041 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 74.7

Radius: 10

Gravity: 0.75 G

Time & Orbit

Eccentricity (e): 0.097

Orbit Range: 1.98 AU - 2.4 AU

Year: 2126 Days

Day: 13.9 Hours

Environment

Temp: -194 °C

Axial Tilt: 39.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 37,307,183 km

• M1: 124,316 km (0.103 R)
• M2: 483,800 km (0.083 R)
• M3: 1,075,309 km (0.095 R)
• M4: 1,920,986 km (0.049 R)
• M5: 2,300,067 km (0.056 R)
• M6: 2,729,114 km (0.072 R)
• M7: 3,353,236 km (0.113 R)
• M8: 4,299,293 km (0.062 R)
• M9: 4,851,758 km (0.11 R)
• M10: 6,059,013 km (0.108 R)
• M11: 6,817,923 km (0.095 R)
• M12: 7,231,561 km (0.082 R)
• M13: 8,157,572 km (0.06 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.31 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 173.5

Radius: 10.3

Gravity: 1.64 G

Time & Orbit

Eccentricity (e): 0.223

Orbit Range: 1.79 AU - 2.83 AU

Year: 2303 Days

Day: 8.2 Hours

Environment

Temp: -192 °C

Axial Tilt: 10.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 37,307,183 km

• M1: 128,355 km (0.077 R)
• M2: 480,209 km (0.082 R)
• M3: 827,725 km (0.114 R)
• M4: 2,337,766 km (0.084 R)
• M5: 3,861,719 km (0.08 R)
• M6: 4,938,675 km (0.115 R)
• M7: 5,578,355 km (0.104 R)
• M8: 6,115,860 km (0.119 R)
• M9: 6,593,825 km (0.096 R)
• M10: 7,047,556 km (0.116 R)
• M11: 11,395,169 km (0.118 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 443.2

Radius: 14.7

Gravity: 2.05 G

Time & Orbit

Eccentricity (e): 0.016

Orbit Range: 3.99 AU - 4.11 AU

Year: 5347 Days

Day: 5.3 Hours

Environment

Temp: -210 °C

Axial Tilt: 42.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 37,307,183 km

• M1: 182,809 km (0.072 R)
• M2: 710,889 km (0.094 R)
• M3: 1,448,556 km (0.114 R)
• M4: 2,207,017 km (0.109 R)
• M5: 2,910,427 km (0.091 R)
• M6: 4,574,254 km (0.114 R)
• M7: 5,503,257 km (0.034 R)
• M8: 7,194,610 km (0.117 R)
• M9: 8,788,127 km (0.11 R)
• M10: 9,648,015 km (0.12 R)
• M11: 10,563,405 km (0.044 R)
• M12: 12,664,357 km (0.074 R)
• M13: 16,089,849 km (0.091 R)
• M14: 16,901,567 km (0.115 R)
• M15: 19,761,879 km (0.113 R)
• M16: 22,357,103 km (0.109 R)
• M17: 23,884,946 km (0.057 R)
• M18: 26,986,409 km (0.075 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 555.9

Radius: 10.7

Gravity: 4.86 G

Time & Orbit

Eccentricity (e): 0.002

Orbit Range: 5.12 AU - 5.14 AU

Year: 7622 Days

Day: 13.9 Hours

Environment

Temp: -222 °C

Axial Tilt: 27.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 37,307,183 km

• M1: 133,142 km (0.105 R)
• M2: 864,825 km (0.095 R)
• M3: 1,351,168 km (0.092 R)
• M4: 1,925,923 km (0.065 R)
• M5: 2,355,269 km (0.096 R)
• M6: 2,906,986 km (0.086 R)
• M7: 3,543,226 km (0.072 R)
• M8: 4,347,913 km (0.084 R)
• M9: 5,181,173 km (0.099 R)
• M10: 7,461,493 km (0.101 R)
• M11: 7,806,765 km (0.102 R)
• M12: 8,570,911 km (0.063 R)
• M13: 8,992,627 km (0.053 R)
• M14: 9,696,485 km (0.109 R)
• M15: 11,313,638 km (0.079 R)
• M16: 13,214,429 km (0.093 R)
• M17: 13,835,559 km (0.102 R)
• M18: 16,451,577 km (0.079 R)
• M19: 21,006,982 km (0.109 R)
• M20: 22,324,041 km (0.109 R)
• M21: 24,696,813 km (0.048 R)
• M22: 28,704,241 km (0.087 R)
• M23: 29,937,975 km (0.116 R)
• M24: 31,206,864 km (0.097 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 224 - 16,215 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit