🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner (Rocky/Metallic)

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: 4.34

Radius: 1.8

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.027

Orbit Range: 0.56 AU - 0.6 AU

Year: 285 Days

Day: 41.8 Hours

Environment

Temp: -135 °C

Axial Tilt: 48.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 19,276,967 km

• M1: 402,269 km (0.095 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 227.4

Radius: 10.9

Gravity: 1.91 G

Time & Orbit

Eccentricity (e): 0.148

Orbit Range: 0.66 AU - 0.9 AU

Year: 445 Days

Day: 10.8 Hours

Environment

Temp: -147 °C

Axial Tilt: 16.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 19,276,967 km

• M1: 135,536 km (0.043 R)
• M2: 546,032 km (0.052 R)
• M3: 921,972 km (0.085 R)
• M4: 1,289,234 km (0.053 R)
• M5: 1,671,607 km (0.071 R)
• M6: 2,055,774 km (0.056 R)
• M7: 2,524,763 km (0.095 R)
• M8: 2,863,902 km (0.077 R)
• M9: 3,976,162 km (0.052 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 793.7

Radius: 13.6

Gravity: 4.29 G

Time & Orbit

Eccentricity (e): 0.187

Orbit Range: 0.66 AU - 0.96 AU

Year: 471 Days

Day: 13 Hours

Environment

Temp: -148 °C

Axial Tilt: 24.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 19,276,967 km

• M1: 169,195 km (0.11 R)
• M2: 807,829 km (0.054 R)
• M3: 1,292,077 km (0.091 R)
• M4: 1,845,290 km (0.084 R)
• M5: 2,278,824 km (0.081 R)
• M6: 2,781,174 km (0.04 R)
• M7: 3,504,629 km (0.074 R)
• M8: 4,068,314 km (0.039 R)
• M9: 5,479,920 km (0.109 R)
• M10: 6,095,515 km (0.084 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 732.7

Radius: 9

Gravity: 9.05 G

Time & Orbit

Eccentricity (e): 0.086

Orbit Range: 0.84 AU - 1 AU

Year: 570 Days

Day: 9.6 Hours

Environment

Temp: -154 °C

Axial Tilt: 0.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 19,276,967 km

• M1: 111,899 km (0.091 R)
• M2: 395,238 km (0.06 R)
• M3: 696,079 km (0.118 R)
• M4: 983,905 km (0.089 R)
• M5: 1,300,903 km (0.075 R)
• M6: 1,815,071 km (0.042 R)
• M7: 2,319,665 km (0.11 R)
• M8: 2,757,238 km (0.035 R)
• M9: 3,114,777 km (0.079 R)
• M10: 3,952,226 km (0.086 R)
• M11: 6,009,945 km (0.09 R)
• M12: 6,614,171 km (0.074 R)
• M13: 7,130,583 km (0.074 R)

Planet 5 - Gas Giant

Semi-Major Axis: 0.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 398.4

Radius: 10.6

Gravity: 3.55 G

Time & Orbit

Eccentricity (e): 0.062

Orbit Range: 0.88 AU - 1 AU

Year: 588 Days

Day: 10.6 Hours

Environment

Temp: -164 °C

Axial Tilt: 20.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 19,276,967 km

• M1: 131,796 km (0.081 R)
• M2: 461,958 km (0.065 R)
• M3: 858,692 km (0.095 R)
• M4: 1,354,160 km (0.06 R)
• M5: 1,888,972 km (0.104 R)
• M6: 2,793,142 km (0.11 R)
• M7: 3,140,807 km (0.035 R)
• M8: 4,098,682 km (0.088 R)
• M9: 4,742,701 km (0.077 R)
• M10: 5,273,026 km (0.067 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 781.2

Radius: 12.7

Gravity: 4.84 G

Time & Orbit

Eccentricity (e): 0.21

Orbit Range: 1 AU - 1.52 AU

Year: 913 Days

Day: 5.5 Hours

Environment

Temp: -163 °C

Axial Tilt: 12.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 19,276,967 km

• M1: 159,771 km (0.111 R)
• M2: 572,062 km (0.039 R)
• M3: 992,283 km (0.097 R)
• M4: 1,803,253 km (0.094 R)
• M5: 2,295,879 km (0.09 R)
• M6: 2,766,513 km (0.099 R)
• M7: 3,191,820 km (0.066 R)
• M8: 3,616,678 km (0.094 R)
• M9: 5,124,625 km (0.048 R)
• M10: 5,610,070 km (0.108 R)
• M11: 6,406,678 km (0.113 R)
• M12: 6,809,695 km (0.094 R)
• M13: 7,421,999 km (0.113 R)
• M14: 7,917,617 km (0.113 R)
• M15: 8,330,058 km (0.091 R)
• M16: 9,741,514 km (0.032 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.24 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 239.3

Radius: 14.8

Gravity: 1.09 G

Time & Orbit

Eccentricity (e): 0.118

Orbit Range: 1.98 AU - 2.5 AU

Year: 2165 Days

Day: 5.6 Hours

Environment

Temp: -185 °C

Axial Tilt: 45.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 19,276,967 km

• M1: 184,155 km (0.087 R)
• M2: 917,185 km (0.103 R)
• M3: 1,501,364 km (0.115 R)
• M4: 2,747,365 km (0.05 R)
• M5: 4,639,329 km (0.11 R)
• M6: 7,493,357 km (0.094 R)
• M7: 8,464,397 km (0.106 R)
• M8: 10,460,930 km (0.086 R)
• M9: 11,534,893 km (0.111 R)

Planet 8 - Gas Giant

Semi-Major Axis: 2.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 878.4

Radius: 12.2

Gravity: 5.9 G

Time & Orbit

Eccentricity (e): 0.053

Orbit Range: 2.18 AU - 2.42 AU

Year: 2252 Days

Day: 7.4 Hours

Environment

Temp: -185 °C

Axial Tilt: 29.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 19,276,967 km

• M1: 155,582 km (0.115 R)
• M2: 549,473 km (0.062 R)
• M3: 1,074,113 km (0.084 R)
• M4: 1,528,591 km (0.082 R)
• M5: 2,280,021 km (0.093 R)
• M6: 2,718,642 km (0.106 R)
• M7: 3,546,517 km (0.085 R)
• M8: 3,980,650 km (0.09 R)
• M9: 4,366,014 km (0.119 R)
• M10: 5,776,123 km (0.088 R)
• M11: 6,434,504 km (0.099 R)
• M12: 7,901,760 km (0.112 R)
• M13: 9,054,262 km (0.091 R)
• M14: 9,509,787 km (0.099 R)
• M15: 10,054,473 km (0.073 R)
• M16: 10,969,114 km (0.079 R)
• M17: 11,773,053 km (0.103 R)
• M18: 12,615,888 km (0.05 R)
• M19: 13,318,848 km (0.098 R)
• M20: 13,955,088 km (0.082 R)
• M21: 15,885,199 km (0.039 R)
• M22: 16,966,942 km (0.117 R)
• M23: 18,207,407 km (0.057 R)
• M24: 18,652,760 km (0.053 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: 200 - 12,770 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit