🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.58 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.54

Radius: 1.19

Gravity: 1.09 G

Time & Orbit

Eccentricity (e): 0.098

Orbit Range: 0.52 AU - 0.64 AU

Year: 285 Days

Day: 23.7 Hours

Environment

Temp: -118 °C

Axial Tilt: 15.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 55,442,540 km

• M1: 143,016 km (0.044 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 314.1

Radius: 10.3

Gravity: 2.96 G

Time & Orbit

Eccentricity (e): 0.194

Orbit Range: 0.65 AU - 0.97 AU

Year: 471 Days

Day: 7 Hours

Environment

Temp: -143 °C

Axial Tilt: 17 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 55,442,540 km

• M1: 128,056 km (0.075 R)
• M2: 488,138 km (0.059 R)
• M3: 883,226 km (0.119 R)
• M4: 1,262,307 km (0.054 R)
• M5: 1,675,646 km (0.095 R)
• M6: 1,998,179 km (0.095 R)
• M7: 2,371,126 km (0.12 R)
• M8: 2,781,024 km (0.078 R)
• M9: 3,379,266 km (0.033 R)
• M10: 3,780,488 km (0.106 R)
• M11: 4,187,843 km (0.065 R)
• M12: 4,790,573 km (0.075 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 845.5

Radius: 10.1

Gravity: 8.29 G

Time & Orbit

Eccentricity (e): 0.099

Orbit Range: 0.75 AU - 0.91 AU

Year: 488 Days

Day: 6.9 Hours

Environment

Temp: -148 °C

Axial Tilt: 37.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 55,442,540 km

• M1: 125,961 km (0.045 R)
• M2: 453,431 km (0.099 R)
• M3: 816,804 km (0.071 R)
• M4: 1,211,144 km (0.082 R)
• M5: 1,779,766 km (0.103 R)
• M6: 2,199,388 km (0.114 R)
• M7: 3,981,099 km (0.068 R)
• M8: 4,295,852 km (0.113 R)
• M9: 4,927,305 km (0.092 R)
• M10: 5,393,302 km (0.094 R)
• M11: 5,852,269 km (0.116 R)
• M12: 6,317,817 km (0.099 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 373.5

Radius: 10.3

Gravity: 3.52 G

Time & Orbit

Eccentricity (e): 0.216

Orbit Range: 0.78 AU - 1.2 AU

Year: 636 Days

Day: 14.5 Hours

Environment

Temp: -158 °C

Axial Tilt: 3.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 55,442,540 km

• M1: 128,056 km (0.092 R)
• M2: 516,262 km (0.071 R)
• M3: 1,017,415 km (0.112 R)
• M4: 1,454,690 km (0.069 R)
• M5: 1,869,225 km (0.074 R)
• M6: 2,233,347 km (0.1 R)
• M7: 2,864,051 km (0.06 R)
• M8: 3,497,748 km (0.116 R)
• M9: 4,335,496 km (0.094 R)
• M10: 4,886,914 km (0.117 R)
• M11: 5,518,067 km (0.071 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 382.3

Radius: 14.4

Gravity: 1.84 G

Time & Orbit

Eccentricity (e): 0.111

Orbit Range: 1.48 AU - 1.84 AU

Year: 1381 Days

Day: 11.1 Hours

Environment

Temp: -188 °C

Axial Tilt: 24.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 55,442,540 km

• M1: 181,313 km (0.08 R)
• M2: 779,854 km (0.112 R)
• M3: 1,227,899 km (0.097 R)
• M4: 1,713,344 km (0.1 R)
• M5: 2,373,370 km (0.11 R)
• M6: 3,310,302 km (0.113 R)
• M7: 3,826,265 km (0.092 R)
• M8: 4,430,341 km (0.074 R)
• M9: 5,465,857 km (0.099 R)
• M10: 6,702,733 km (0.104 R)
• M11: 9,320,396 km (0.115 R)
• M12: 9,874,507 km (0.067 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 585.4

Radius: 8.9

Gravity: 7.39 G

Time & Orbit

Eccentricity (e): 0.165

Orbit Range: 1.85 AU - 2.57 AU

Year: 2121 Days

Day: 7.1 Hours

Environment

Temp: -185 °C

Axial Tilt: 6.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 55,442,540 km

• M1: 120,576 km (0.105 R)
• M2: 444,904 km (0.086 R)
• M3: 860,337 km (0.103 R)
• M4: 1,757,775 km (0.077 R)
• M5: 2,095,268 km (0.092 R)
• M6: 2,827,998 km (0.115 R)
• M7: 4,244,391 km (0.105 R)
• M8: 4,793,565 km (0.115 R)
• M9: 6,158,346 km (0.119 R)
• M10: 6,595,621 km (0.046 R)
• M11: 7,503,829 km (0.1 R)
• M12: 8,153,982 km (0.116 R)
• M13: 9,331,766 km (0.082 R)
• M14: 10,013,633 km (0.099 R)
• M15: 11,248,563 km (0.092 R)
• M16: 12,704,749 km (0.102 R)
• M17: 15,701,942 km (0.105 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 525.6

Radius: 9

Gravity: 6.49 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 3.99 AU - 4.17 AU

Year: 5321 Days

Day: 5.9 Hours

Environment

Temp: -209 °C

Axial Tilt: 25.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 55,442,540 km

• M1: 111,899 km (0.12 R)
• M2: 628,161 km (0.054 R)
• M3: 1,009,038 km (0.06 R)
• M4: 1,519,166 km (0.086 R)
• M5: 2,238,583 km (0.095 R)
• M6: 2,590,437 km (0.04 R)
• M7: 2,924,040 km (0.11 R)
• M8: 3,488,922 km (0.073 R)
• M9: 3,964,493 km (0.113 R)
• M10: 4,336,992 km (0.114 R)
• M11: 5,568,781 km (0.117 R)
• M12: 6,219,382 km (0.105 R)
• M13: 7,019,132 km (0.026 R)
• M14: 8,706,297 km (0.063 R)
• M15: 9,831,123 km (0.096 R)
• M16: 11,980,695 km (0.087 R)
• M17: 12,861,827 km (0.109 R)
• M18: 13,891,060 km (0.078 R)
• M19: 14,643,388 km (0.093 R)
• M20: 15,422,792 km (0.077 R)
• M21: 17,003,444 km (0.119 R)
• M22: 18,368,973 km (0.107 R)
• M23: 19,341,060 km (0.093 R)
• M24: 20,143,054 km (0.107 R)
• M25: 20,621,019 km (0.105 R)
• M26: 22,463,018 km (0.054 R)
• M27: 24,489,171 km (0.079 R)
• M28: 24,799,437 km (0.039 R)
• M29: 27,127,479 km (0.095 R)
• M30: 27,543,062 km (0.091 R)
• M31: 28,815,392 km (0.102 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.58 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 214.7

Radius: 3.4

Gravity: 18.57 G

Time & Orbit

Eccentricity (e): 0.182

Orbit Range: 8.65 AU - 12.51 AU

Year: 22220 Days

Day: 22.7 Hours

Environment

Temp: -241 °C

Axial Tilt: 13.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 55,442,540 km

• M1: 43,383 km (0.09 R)
• M2: 175,628 km (0.087 R)
• M3: 282,142 km (0.099 R)
• M4: 505,790 km (0.075 R)
• M5: 1,365,679 km (0.092 R)
• M6: 1,840,652 km (0.078 R)
• M7: 1,997,281 km (0.116 R)
• M8: 3,154,720 km (0.07 R)
• M9: 8,243,441 km (0.098 R)
• M10: 9,209,245 km (0.082 R)
• M11: 12,249,672 km (0.04 R)
• M12: 20,634,334 km (0.044 R)
• M13: 25,137,828 km (0.08 R)
• M14: 28,407,289 km (0.061 R)
• M15: 30,254,225 km (0.045 R)
• M16: 41,515,653 km (0.078 R)
• M17: 42,066,173 km (0.113 R)
• M18: 46,943,662 km (0.027 R)
• M19: 50,448,441 km (0.114 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: 176 - 12,810 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit