🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.66 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.68

Radius: 1.68

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.027

Orbit Range: 0.64 AU - 0.68 AU

Year: 346 Days

Day: 12.5 Hours

Environment

Temp: -142 °C

Axial Tilt: 16.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 869

Radius: 11.4

Gravity: 6.69 G

Time & Orbit

Eccentricity (e): 0.143

Orbit Range: 0.66 AU - 0.88 AU

Year: 436 Days

Day: 13.1 Hours

Environment

Temp: -149 °C

Axial Tilt: 10 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 78,618,625 km

• M1: 148,850 km (0.101 R)
• M2: 645,216 km (0.107 R)
• M3: 1,234,332 km (0.052 R)
• M4: 1,821,354 km (0.094 R)
• M5: 2,317,271 km (0.107 R)
• M6: 2,742,129 km (0.115 R)
• M7: 3,172,223 km (0.045 R)
• M8: 3,596,482 km (0.097 R)
• M9: 4,354,794 km (0.07 R)
• M10: 4,726,246 km (0.07 R)
• M11: 5,348,423 km (0.086 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 780.6

Radius: 12.5

Gravity: 5 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 0.64 AU - 0.96 AU

Year: 462 Days

Day: 5.3 Hours

Environment

Temp: -152 °C

Axial Tilt: 47.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 78,618,625 km

• M1: 155,582 km (0.097 R)
• M2: 585,825 km (0.068 R)
• M3: 1,202,168 km (0.085 R)
• M4: 1,751,043 km (0.108 R)
• M5: 3,662,305 km (0.057 R)
• M6: 4,384,265 km (0.081 R)
• M7: 5,102,185 km (0.112 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 895.5

Radius: 9.5

Gravity: 9.92 G

Time & Orbit

Eccentricity (e): 0.043

Orbit Range: 0.92 AU - 1 AU

Year: 607 Days

Day: 12.5 Hours

Environment

Temp: -150 °C

Axial Tilt: 43.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 78,618,625 km

• M1: 118,182 km (0.11 R)
• M2: 490,382 km (0.094 R)
• M3: 1,109,717 km (0.082 R)
• M4: 1,588,131 km (0.077 R)
• M5: 1,965,267 km (0.12 R)
• M6: 2,269,400 km (0.107 R)
• M7: 2,762,474 km (0.083 R)
• M8: 3,890,442 km (0.035 R)
• M9: 4,615,244 km (0.104 R)
• M10: 4,932,691 km (0.034 R)
• M11: 5,264,947 km (0.028 R)
• M12: 6,352,225 km (0.084 R)
• M13: 6,724,873 km (0.113 R)
• M14: 8,073,947 km (0.072 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 713

Radius: 11.9

Gravity: 5.03 G

Time & Orbit

Eccentricity (e): 0.126

Orbit Range: 2.11 AU - 2.71 AU

Year: 2416 Days

Day: 8.9 Hours

Environment

Temp: -189 °C

Axial Tilt: 7.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 78,618,625 km

• M1: 147,952 km (0.032 R)
• M2: 623,075 km (0.102 R)
• M3: 1,282,652 km (0.098 R)
• M4: 2,584,303 km (0.058 R)
• M5: 2,962,786 km (0.088 R)
• M6: 3,591,845 km (0.059 R)
• M7: 4,165,702 km (0.07 R)
• M8: 6,262,466 km (0.098 R)
• M9: 7,940,206 km (0.117 R)
• M10: 8,749,082 km (0.09 R)
• M11: 11,791,304 km (0.105 R)
• M12: 12,458,062 km (0.088 R)
• M13: 15,526,763 km (0.09 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.33 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 931.6

Radius: 5.9

Gravity: 26.76 G

Time & Orbit

Eccentricity (e): 0.089

Orbit Range: 5.77 AU - 6.89 AU

Year: 10283 Days

Day: 19.8 Hours

Environment

Temp: -229 °C

Axial Tilt: 19.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 78,618,625 km

• M1: 85,570 km (0.069 R)
• M2: 512,074 km (0.067 R)
• M3: 739,313 km (0.119 R)
• M4: 1,067,530 km (0.108 R)
• M5: 1,714,392 km (0.08 R)
• M6: 1,928,167 km (0.107 R)
• M7: 2,854,776 km (0.12 R)
• M8: 4,104,966 km (0.083 R)
• M9: 4,429,443 km (0.043 R)
• M10: 5,827,435 km (0.076 R)
• M11: 6,086,090 km (0.119 R)
• M12: 10,132,114 km (0.074 R)
• M13: 11,340,267 km (0.078 R)
• M14: 12,217,060 km (0.116 R)
• M15: 13,907,665 km (0.1 R)
• M16: 16,542,981 km (0.071 R)
• M17: 19,740,037 km (0.053 R)
• M18: 20,072,444 km (0.079 R)
• M19: 27,221,427 km (0.099 R)
• M20: 34,921,379 km (0.059 R)
• M21: 42,283,539 km (0.092 R)
• M22: 44,806,956 km (0.103 R)
• M23: 49,080,967 km (0.077 R)
• M24: 51,082,138 km (0.11 R)
• M25: 53,618,869 km (0.095 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.23 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 922

Radius: 6.9

Gravity: 19.37 G

Time & Orbit

Eccentricity (e): 0.026

Orbit Range: 8.99 AU - 9.47 AU

Year: 18106 Days

Day: 19.3 Hours

Environment

Temp: -223 °C

Axial Tilt: 28.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 78,618,625 km

• M1: 85,869 km (0.075 R)
• M2: 551,418 km (0.063 R)
• M3: 1,171,501 km (0.1 R)
• M4: 1,387,969 km (0.113 R)
• M5: 1,922,931 km (0.095 R)
• M6: 3,395,572 km (0.109 R)
• M7: 3,749,820 km (0.118 R)
• M8: 5,458,826 km (0.099 R)
• M9: 6,243,018 km (0.092 R)
• M10: 7,729,872 km (0.072 R)
• M11: 8,135,731 km (0.102 R)
• M12: 11,580,072 km (0.091 R)
• M13: 14,860,454 km (0.096 R)
• M14: 15,727,673 km (0.115 R)
• M15: 22,869,625 km (0.033 R)
• M16: 25,327,817 km (0.04 R)
• M17: 26,792,380 km (0.114 R)
• M18: 32,167,881 km (0.103 R)
• M19: 36,078,518 km (0.115 R)
• M20: 36,500,235 km (0.112 R)
• M21: 37,353,691 km (0.104 R)
• M22: 41,053,246 km (0.038 R)
• M23: 47,975,140 km (0.103 R)
• M24: 50,561,687 km (0.104 R)
• M25: 54,891,049 km (0.096 R)
• M26: 58,488,878 km (0.112 R)
• M27: 67,843,981 km (0.109 R)
• M28: 68,271,980 km (0.116 R)
• M29: 71,760,603 km (0.099 R)
• M30: 77,914,012 km (0.084 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 415 - 14,839 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit