🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.63 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.86

Radius: 1.52

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.243

Orbit Range: 0.48 AU - 0.78 AU

Year: 328 Days

Day: 29.9 Hours

Environment

Temp: -123 °C

Axial Tilt: 0.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 84,568,819 km

• M1: 201,957 km (0.118 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 355.3

Radius: 13.6

Gravity: 1.92 G

Time & Orbit

Eccentricity (e): 0.143

Orbit Range: 0.66 AU - 0.88 AU

Year: 443 Days

Day: 9.4 Hours

Environment

Temp: -139 °C

Axial Tilt: 6.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 84,568,819 km

• M1: 169,195 km (0.115 R)
• M2: 658,530 km (0.08 R)
• M3: 1,129,913 km (0.091 R)
• M4: 1,587,832 km (0.035 R)
• M5: 2,024,807 km (0.109 R)
• M6: 2,534,338 km (0.085 R)
• M7: 2,967,423 km (0.112 R)
• M8: 3,539,635 km (0.106 R)
• M9: 4,122,020 km (0.107 R)
• M10: 4,644,415 km (0.104 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 307.1

Radius: 13

Gravity: 1.82 G

Time & Orbit

Eccentricity (e): 0.033

Orbit Range: 1.1 AU - 1.18 AU

Year: 798 Days

Day: 10.9 Hours

Environment

Temp: -172 °C

Axial Tilt: 27.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 84,568,819 km

• M1: 161,715 km (0.108 R)
• M2: 646,712 km (0.104 R)
• M3: 1,106,276 km (0.073 R)
• M4: 1,525,599 km (0.064 R)
• M5: 1,943,725 km (0.089 R)
• M6: 2,723,878 km (0.116 R)
• M7: 3,276,941 km (0.099 R)
• M8: 3,783,181 km (0.113 R)
• M9: 4,385,611 km (0.108 R)
• M10: 5,417,687 km (0.039 R)
• M11: 6,723,228 km (0.11 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 979

Radius: 9.9

Gravity: 9.99 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 3.5 AU - 3.72 AU

Year: 4500 Days

Day: 9.2 Hours

Environment

Temp: -202 °C

Axial Tilt: 10.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 84,568,819 km

• M1: 123,269 km (0.119 R)
• M2: 787,034 km (0.038 R)
• M3: 2,252,196 km (0.065 R)
• M4: 4,487,188 km (0.091 R)
• M5: 5,492,785 km (0.043 R)
• M6: 6,253,041 km (0.046 R)
• M7: 10,096,959 km (0.042 R)
• M8: 11,142,049 km (0.08 R)
• M9: 14,317,264 km (0.116 R)
• M10: 16,111,242 km (0.047 R)
• M11: 16,536,100 km (0.085 R)
• M12: 17,535,713 km (0.087 R)
• M13: 17,920,778 km (0.116 R)
• M14: 20,633,586 km (0.06 R)
• M15: 21,207,293 km (0.096 R)
• M16: 27,114,165 km (0.076 R)
• M17: 28,063,663 km (0.066 R)
• M18: 30,488,046 km (0.087 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 711

Radius: 13.5

Gravity: 3.9 G

Time & Orbit

Eccentricity (e): 0.228

Orbit Range: 2.85 AU - 4.53 AU

Year: 4650 Days

Day: 14.4 Hours

Environment

Temp: -211 °C

Axial Tilt: 35.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 84,568,819 km

• M1: 167,998 km (0.072 R)
• M2: 1,189,901 km (0.103 R)
• M3: 2,252,794 km (0.077 R)
• M4: 4,146,853 km (0.117 R)
• M5: 4,881,977 km (0.094 R)
• M6: 6,146,229 km (0.06 R)
• M7: 7,409,583 km (0.111 R)
• M8: 8,418,620 km (0.025 R)
• M9: 8,917,379 km (0.059 R)
• M10: 9,723,263 km (0.07 R)
• M11: 12,781,044 km (0.036 R)
• M12: 13,492,830 km (0.118 R)
• M13: 15,616,073 km (0.082 R)
• M14: 16,548,516 km (0.066 R)
• M15: 23,163,734 km (0.063 R)
• M16: 23,992,955 km (0.087 R)
• M17: 27,093,521 km (0.029 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 512.9

Radius: 10.7

Gravity: 4.48 G

Time & Orbit

Eccentricity (e): 0.165

Orbit Range: 3.14 AU - 4.38 AU

Year: 4783 Days

Day: 9.2 Hours

Environment

Temp: -215 °C

Axial Tilt: 35.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 84,568,819 km

• M1: 136,134 km (0.076 R)
• M2: 541,993 km (0.114 R)
• M3: 1,399,937 km (0.08 R)
• M4: 2,053,680 km (0.106 R)
• M5: 2,562,761 km (0.12 R)
• M6: 4,303,781 km (0.067 R)
• M7: 5,168,457 km (0.094 R)
• M8: 5,572,969 km (0.103 R)
• M9: 6,506,909 km (0.04 R)
• M10: 7,141,802 km (0.089 R)
• M11: 8,099,378 km (0.113 R)
• M12: 9,573,067 km (0.077 R)
• M13: 10,143,334 km (0.026 R)
• M14: 10,693,106 km (0.082 R)
• M15: 11,173,764 km (0.049 R)
• M16: 11,577,529 km (0.08 R)
• M17: 13,341,437 km (0.109 R)
• M18: 15,168,775 km (0.085 R)
• M19: 15,608,743 km (0.12 R)
• M20: 16,170,782 km (0.119 R)
• M21: 18,554,923 km (0.103 R)
• M22: 19,377,711 km (0.11 R)
• M23: 20,158,762 km (0.104 R)
• M24: 20,623,862 km (0.094 R)
• M25: 21,369,308 km (0.047 R)
• M26: 24,758,298 km (0.074 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 53.8

Radius: 10.6

Gravity: 0.48 G

Time & Orbit

Eccentricity (e): 0.234

Orbit Range: 3.08 AU - 4.96 AU

Year: 5287 Days

Day: 13.6 Hours

Environment

Temp: -215 °C

Axial Tilt: 29.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 84,568,819 km

• M1: 150,944 km (0.05 R)
• M2: 605,123 km (0.114 R)
• M3: 1,109,418 km (0.072 R)
• M4: 1,476,830 km (0.113 R)
• M5: 1,833,322 km (0.109 R)
• M6: 2,416,155 km (0.089 R)
• M7: 3,223,385 km (0.099 R)
• M8: 3,567,161 km (0.083 R)
• M9: 5,217,525 km (0.045 R)
• M10: 6,035,376 km (0.101 R)
• M11: 6,709,465 km (0.084 R)
• M12: 8,974,526 km (0.117 R)
• M13: 9,724,011 km (0.104 R)
• M14: 11,030,449 km (0.091 R)
• M15: 12,412,435 km (0.113 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 694.6

Radius: 12.9

Gravity: 4.17 G

Time & Orbit

Eccentricity (e): 0.132

Orbit Range: 4.45 AU - 5.81 AU

Year: 7622 Days

Day: 12.8 Hours

Environment

Temp: -211 °C

Axial Tilt: 27.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 84,568,819 km

• M1: 160,519 km (0.1 R)
• M2: 580,739 km (0.109 R)
• M3: 1,733,391 km (0.054 R)
• M4: 2,237,386 km (0.041 R)
• M5: 3,735,010 km (0.101 R)
• M6: 4,236,612 km (0.117 R)
• M7: 4,754,669 km (0.084 R)
• M8: 5,253,728 km (0.117 R)
• M9: 6,018,173 km (0.071 R)
• M10: 7,002,377 km (0.115 R)
• M11: 7,572,195 km (0.091 R)
• M12: 9,200,119 km (0.111 R)
• M13: 11,614,479 km (0.11 R)
• M14: 12,305,771 km (0.106 R)
• M15: 15,349,041 km (0.119 R)
• M16: 16,444,247 km (0.078 R)
• M17: 16,977,414 km (0.113 R)
• M18: 20,043,123 km (0.089 R)
• M19: 20,960,756 km (0.108 R)
• M20: 21,826,180 km (0.112 R)
• M21: 22,961,927 km (0.071 R)
• M22: 25,705,701 km (0.104 R)
• M23: 27,434,454 km (0.098 R)
• M24: 29,629,354 km (0.118 R)
• M25: 31,631,123 km (0.056 R)
• M26: 32,145,291 km (0.062 R)
• M27: 34,691,597 km (0.063 R)
• M28: 36,014,042 km (0.119 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.05 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 861.2

Radius: 3

Gravity: 95.69 G

Time & Orbit

Eccentricity (e): 0.118

Orbit Range: 8.86 AU - 11.24 AU

Year: 20901 Days

Day: 18.1 Hours

Environment

Temp: -239 °C

Axial Tilt: 39.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 84,568,819 km

• M1: 44,580 km (0.045 R)
• M2: 498,161 km (0.042 R)
• M3: 854,204 km (0.101 R)
• M4: 974,780 km (0.08 R)
• M5: 1,973,645 km (0.108 R)
• M6: 2,342,553 km (0.101 R)
• M7: 2,654,315 km (0.096 R)
• M8: 3,630,591 km (0.095 R)
• M9: 4,080,581 km (0.12 R)
• M10: 5,051,621 km (0.061 R)
• M11: 5,286,639 km (0.079 R)
• M12: 6,526,357 km (0.066 R)
• M13: 7,336,728 km (0.063 R)
• M14: 8,813,559 km (0.088 R)
• M15: 10,043,403 km (0.109 R)
• M16: 12,622,171 km (0.103 R)
• M17: 13,646,019 km (0.102 R)
• M18: 18,942,681 km (0.107 R)
• M19: 21,174,232 km (0.092 R)
• M20: 22,196,734 km (0.11 R)
• M21: 23,900,653 km (0.07 R)
• M22: 25,234,318 km (0.056 R)
• M23: 31,326,393 km (0.12 R)
• M24: 34,430,548 km (0.063 R)
• M25: 42,191,237 km (0.077 R)
• M26: 48,546,304 km (0.088 R)
• M27: 63,318,795 km (0.118 R)
• M28: 63,528,082 km (0.106 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 478 - 15,820 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit