🌌 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: 0.57 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.45

Radius: 0.73

Gravity: 0.84 G

Time & Orbit

Eccentricity (e): 0.078

Orbit Range: 0.53 AU - 0.61 AU

Year: 282 Days

Day: 17.9 Hours

Environment

Temp: -124 °C

Axial Tilt: 13.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 864.6

Radius: 13.8

Gravity: 4.54 G

Time & Orbit

Eccentricity (e): 0.005

Orbit Range: 0.72 AU - 0.72 AU

Year: 401 Days

Day: 10.9 Hours

Environment

Temp: -143 °C

Axial Tilt: 9.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 29,651,404 km

• M1: 171,589 km (0.091 R)
• M2: 605,273 km (0.112 R)
• M3: 1,190,350 km (0.109 R)
• M4: 1,652,608 km (0.111 R)
• M5: 2,091,378 km (0.114 R)
• M6: 2,579,815 km (0.062 R)
• M7: 3,156,066 km (0.084 R)
• M8: 3,766,426 km (0.117 R)
• M9: 4,355,542 km (0.025 R)
• M10: 5,241,760 km (0.074 R)
• M11: 5,856,906 km (0.045 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 236.7

Radius: 13

Gravity: 1.4 G

Time & Orbit

Eccentricity (e): 0.162

Orbit Range: 2.36 AU - 3.28 AU

Year: 3107 Days

Day: 14.4 Hours

Environment

Temp: -200 °C

Axial Tilt: 0.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 29,651,404 km

• M1: 163,510 km (0.119 R)
• M2: 690,544 km (0.038 R)
• M3: 1,153,549 km (0.07 R)
• M4: 1,657,395 km (0.091 R)
• M5: 2,116,211 km (0.112 R)
• M6: 2,900,703 km (0.099 R)
• M7: 3,800,235 km (0.077 R)
• M8: 6,525,459 km (0.063 R)
• M9: 6,996,543 km (0.068 R)
• M10: 7,688,882 km (0.079 R)
• M11: 8,548,621 km (0.108 R)
• M12: 10,672,312 km (0.073 R)
• M13: 11,780,533 km (0.099 R)
• M14: 13,838,401 km (0.112 R)
• M15: 15,065,104 km (0.037 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 683

Radius: 11.1

Gravity: 5.54 G

Time & Orbit

Eccentricity (e): 0.067

Orbit Range: 2.67 AU - 3.05 AU

Year: 3173 Days

Day: 12.3 Hours

Environment

Temp: -197 °C

Axial Tilt: 5.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 29,651,404 km

• M1: 138,079 km (0.063 R)
• M2: 492,327 km (0.034 R)
• M3: 985,401 km (0.11 R)
• M4: 1,431,203 km (0.11 R)
• M5: 2,049,790 km (0.071 R)
• M6: 2,632,623 km (0.101 R)
• M7: 3,396,769 km (0.068 R)
• M8: 3,781,385 km (0.1 R)
• M9: 4,896,039 km (0.035 R)
• M10: 5,621,140 km (0.119 R)
• M11: 6,445,125 km (0.101 R)
• M12: 7,379,214 km (0.11 R)
• M13: 8,264,235 km (0.089 R)
• M14: 9,590,271 km (0.075 R)
• M15: 15,483,529 km (0.075 R)
• M16: 16,009,515 km (0.115 R)
• M17: 17,433,388 km (0.07 R)
• M18: 19,481,084 km (0.05 R)
• M19: 19,909,083 km (0.065 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 699.7

Radius: 13.1

Gravity: 4.08 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 4.98 AU - 5.34 AU

Year: 7689 Days

Day: 5.6 Hours

Environment

Temp: -209 °C

Axial Tilt: 19.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 29,651,404 km

• M1: 234,420 km (0.076 R)
• M2: 1,116,898 km (0.074 R)
• M3: 1,626,278 km (0.087 R)
• M4: 2,706,973 km (0.079 R)
• M5: 3,623,859 km (0.105 R)
• M6: 4,194,126 km (0.069 R)
• M7: 4,766,637 km (0.084 R)
• M8: 5,453,142 km (0.058 R)
• M9: 5,869,772 km (0.052 R)
• M10: 7,249,662 km (0.043 R)
• M11: 7,715,061 km (0.094 R)
• M12: 9,232,582 km (0.108 R)
• M13: 11,870,142 km (0.066 R)
• M14: 12,354,091 km (0.052 R)
• M15: 13,826,882 km (0.12 R)
• M16: 15,413,817 km (0.068 R)
• M17: 16,515,007 km (0.057 R)
• M18: 17,255,217 km (0.098 R)
• M19: 17,877,095 km (0.11 R)
• M20: 19,386,388 km (0.069 R)
• M21: 21,370,953 km (0.105 R)
• M22: 22,088,425 km (0.119 R)
• M23: 22,657,645 km (0.096 R)
• M24: 23,995,199 km (0.098 R)
• M25: 27,103,993 km (0.087 R)
• M26: 30,073,510 km (0.12 R)
• M27: 32,726,329 km (0.115 R)
• M28: 33,786,829 km (0.056 R)
• M29: 34,651,804 km (0.07 R)
• M30: 36,538,682 km (0.032 R)
• M31: 40,034,036 km (0.102 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.16 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 161.2

Radius: 7.3

Gravity: 3.02 G

Time & Orbit

Eccentricity (e): 0.082

Orbit Range: 5.65 AU - 6.67 AU

Year: 10030 Days

Day: 15.1 Hours

Environment

Temp: -212 °C

Axial Tilt: 21 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 29,651,404 km

• M1: 91,255 km (0.025 R)
• M2: 418,575 km (0.065 R)
• M3: 921,224 km (0.088 R)
• M4: 1,624,782 km (0.035 R)
• M5: 2,360,056 km (0.116 R)
• M6: 4,199,511 km (0.118 R)
• M7: 4,516,659 km (0.06 R)
• M8: 4,902,472 km (0.062 R)
• M9: 5,282,151 km (0.081 R)
• M10: 6,380,648 km (0.079 R)
• M11: 6,966,773 km (0.037 R)
• M12: 7,623,956 km (0.089 R)
• M13: 9,633,804 km (0.11 R)
• M14: 9,928,960 km (0.11 R)
• M15: 10,317,167 km (0.06 R)
• M16: 12,511,917 km (0.064 R)
• M17: 13,429,102 km (0.082 R)
• M18: 13,850,818 km (0.06 R)
• M19: 14,999,879 km (0.119 R)
• M20: 16,152,232 km (0.076 R)
• M21: 16,932,085 km (0.091 R)
• M22: 21,784,442 km (0.088 R)
• M23: 26,081,042 km (0.035 R)
• M24: 27,153,510 km (0.113 R)
• M25: 28,427,186 km (0.035 R)
• M26: 28,947,637 km (0.102 R)
• M27: 29,298,145 km (0.096 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 445 - 19,522 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit