🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.52 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.03 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.96

Radius: 1.9

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.085

Orbit Range: 0.94 AU - 1.12 AU

Year: 396 Days

Day: 36.4 Hours

Environment

Temp: 21 °C

Axial Tilt: 92 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (2)

Outer Limit: 86,730,464 km

• M1: 413,937 km (0.069 R)
• M2: 601,383 km (0.031 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.22 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.72

Radius: 0.88

Gravity: 0.93 G

Time & Orbit

Eccentricity (e): 0.191

Orbit Range: 0.99 AU - 1.45 AU

Year: 510 Days

Day: 34.7 Hours

Environment

Temp: -32 °C

Axial Tilt: 36.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 10.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 44

Radius: 14

Gravity: 0.22 G

Time & Orbit

Eccentricity (e): 0.181

Orbit Range: 8.71 AU - 12.57 AU

Year: 13145 Days

Day: 14.6 Hours

Environment

Temp: -192 °C

Axial Tilt: 44.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 86,730,464 km

• M1: 174,730 km (0.072 R)
• M2: 743,352 km (0.111 R)
• M3: 1,223,112 km (0.101 R)
• M4: 1,941,481 km (0.056 R)
• M5: 2,517,433 km (0.081 R)
• M6: 3,754,009 km (0.105 R)
• M7: 5,136,892 km (0.069 R)
• M8: 7,362,459 km (0.086 R)
• M9: 9,251,581 km (0.11 R)
• M10: 17,629,810 km (0.034 R)
• M11: 18,981,127 km (0.104 R)
• M12: 19,589,692 km (0.081 R)
• M13: 21,363,324 km (0.1 R)

Planet 4 - Ice Giant

Semi-Major Axis: 12.73 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 185.6

Radius: 4

Gravity: 11.6 G

Time & Orbit

Eccentricity (e): 0.079

Orbit Range: 11.72 AU - 13.74 AU

Year: 17202 Days

Day: 20.5 Hours

Environment

Temp: -187 °C

Axial Tilt: 7.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 86,730,464 km

• M1: 50,115 km (0.107 R)
• M2: 563,236 km (0.097 R)
• M3: 995,125 km (0.037 R)
• M4: 2,433,209 km (0.069 R)
• M5: 2,770,253 km (0.052 R)
• M6: 3,890,741 km (0.076 R)
• M7: 4,638,432 km (0.118 R)
• M8: 12,664,208 km (0.087 R)
• M9: 12,837,741 km (0.091 R)
• M10: 13,189,745 km (0.058 R)
• M11: 15,569,698 km (0.108 R)
• M12: 17,928,706 km (0.117 R)
• M13: 21,980,415 km (0.106 R)
• M14: 23,513,943 km (0.091 R)
• M15: 26,602,391 km (0.067 R)
• M16: 27,753,846 km (0.113 R)
• M17: 31,407,175 km (0.084 R)
• M18: 32,476,202 km (0.117 R)
• M19: 36,525,068 km (0.091 R)

Planet 5 - Ice Giant

Semi-Major Axis: 18.95 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 415.7

Radius: 7.5

Gravity: 7.39 G

Time & Orbit

Eccentricity (e): 0.025

Orbit Range: 18.48 AU - 19.42 AU

Year: 31244 Days

Day: 22 Hours

Environment

Temp: -201 °C

Axial Tilt: 47.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 86,730,464 km

• M1: 94,097 km (0.065 R)
• M2: 368,460 km (0.079 R)
• M3: 907,161 km (0.104 R)
• M4: 1,261,260 km (0.101 R)
• M5: 2,674,212 km (0.049 R)
• M6: 2,985,824 km (0.114 R)
• M7: 3,620,119 km (0.119 R)
• M8: 7,473,311 km (0.099 R)
• M9: 10,286,050 km (0.079 R)
• M10: 14,118,000 km (0.043 R)
• M11: 14,665,378 km (0.032 R)
• M12: 15,553,990 km (0.095 R)
• M13: 21,550,920 km (0.119 R)
• M14: 24,439,355 km (0.116 R)
• M15: 25,001,095 km (0.118 R)
• M16: 36,351,684 km (0.066 R)
• M17: 48,918,504 km (0.101 R)
• M18: 51,260,309 km (0.095 R)
• M19: 51,811,128 km (0.09 R)
• M20: 61,789,456 km (0.082 R)
• M21: 86,470,860 km (0.083 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: 407 - 17,422 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit