🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.51 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.08

Radius: 1.03

Gravity: 1.02 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 0.45 AU - 0.57 AU

Year: 133 Days

Day: 16.7 Hours

Environment

Temp: 169 °C

Axial Tilt: 7.6 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.54 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.66

Radius: 1.48

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.218

Orbit Range: 0.42 AU - 0.66 AU

Year: 145 Days

Day: 33.4 Hours

Environment

Temp: 241 °C

Axial Tilt: 24.6 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (2)

Outer Limit: 89,869,171 km

• M1: 47,123 km (0.119 R)
• M2: 358,436 km (0.092 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.23 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.63

Radius: 1.47

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.135

Orbit Range: 1.06 AU - 1.4 AU

Year: 498 Days

Day: 15.9 Hours

Environment

Temp: 15 °C

Axial Tilt: 16.6 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (2)

Outer Limit: 89,869,171 km

• M1: 188,942 km (0.081 R)
• M2: 694,433 km (0.112 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1.32 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.12

Radius: 0.43

Gravity: 0.65 G

Time & Orbit

Eccentricity (e): 0.052

Orbit Range: 1.25 AU - 1.39 AU

Year: 554 Days

Day: 40.8 Hours

Environment

Temp: -6 °C

Axial Tilt: 37.1 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 5 - Gas Giant

Semi-Major Axis: 4.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 849.4

Radius: 12

Gravity: 5.9 G

Time & Orbit

Eccentricity (e): 0.123

Orbit Range: 4.35 AU - 5.57 AU

Year: 4035 Days

Day: 6.8 Hours

Environment

Temp: -146 °C

Axial Tilt: 1.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 89,869,171 km

• M1: 149,299 km (0.103 R)
• M2: 565,630 km (0.082 R)
• M3: 990,488 km (0.091 R)
• M4: 2,191,908 km (0.084 R)
• M5: 2,664,039 km (0.045 R)
• M6: 3,751,316 km (0.114 R)
• M7: 4,219,558 km (0.12 R)
• M8: 5,034,716 km (0.094 R)
• M9: 5,549,931 km (0.111 R)
• M10: 6,404,434 km (0.115 R)
• M11: 7,378,466 km (0.059 R)
• M12: 11,074,282 km (0.115 R)
• M13: 12,719,858 km (0.108 R)
• M14: 19,274,190 km (0.12 R)
• M15: 21,434,682 km (0.041 R)
• M16: 24,204,636 km (0.061 R)
• M17: 25,913,044 km (0.084 R)
• M18: 26,392,655 km (0.09 R)
• M19: 27,617,413 km (0.119 R)
• M20: 28,034,043 km (0.078 R)

Planet 6 - Gas Giant

Semi-Major Axis: 7.44 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 908.8

Radius: 12.1

Gravity: 6.21 G

Time & Orbit

Eccentricity (e): 0.072

Orbit Range: 6.9 AU - 7.98 AU

Year: 7412 Days

Day: 6.6 Hours

Environment

Temp: -169 °C

Axial Tilt: 46.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 89,869,171 km

• M1: 150,495 km (0.094 R)
• M2: 871,707 km (0.1 R)
• M3: 1,418,786 km (0.109 R)
• M4: 2,073,726 km (0.084 R)
• M5: 2,546,754 km (0.056 R)
• M6: 3,134,973 km (0.083 R)
• M7: 3,738,002 km (0.076 R)
• M8: 4,307,521 km (0.105 R)
• M9: 5,653,902 km (0.097 R)
• M10: 7,147,637 km (0.078 R)
• M11: 7,903,854 km (0.107 R)
• M12: 8,322,728 km (0.098 R)
• M13: 9,069,221 km (0.103 R)
• M14: 9,622,733 km (0.101 R)
• M15: 10,797,376 km (0.073 R)
• M16: 12,010,465 km (0.116 R)
• M17: 12,397,176 km (0.1 R)
• M18: 12,964,002 km (0.074 R)
• M19: 13,371,058 km (0.084 R)
• M20: 17,011,073 km (0.067 R)
• M21: 17,854,057 km (0.099 R)
• M22: 19,020,920 km (0.072 R)
• M23: 19,471,360 km (0.04 R)
• M24: 20,471,870 km (0.08 R)
• M25: 21,264,589 km (0.056 R)
• M26: 26,271,630 km (0.115 R)
• M27: 35,288,492 km (0.082 R)
• M28: 38,421,221 km (0.111 R)
• M29: 42,368,810 km (0.1 R)

Planet 7 - Gas Giant

Semi-Major Axis: 9.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 904

Radius: 10.2

Gravity: 8.69 G

Time & Orbit

Eccentricity (e): 0.207

Orbit Range: 7.26 AU - 11.04 AU

Year: 10109 Days

Day: 10.1 Hours

Environment

Temp: -168 °C

Axial Tilt: 4.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 89,869,171 km

• M1: 127,308 km (0.062 R)
• M2: 512,672 km (0.104 R)
• M3: 1,110,016 km (0.047 R)
• M4: 2,431,115 km (0.079 R)
• M5: 2,868,539 km (0.085 R)
• M6: 3,432,673 km (0.078 R)
• M7: 3,821,627 km (0.037 R)
• M8: 4,327,418 km (0.069 R)
• M9: 5,235,925 km (0.111 R)
• M10: 5,612,015 km (0.074 R)
• M11: 7,641,459 km (0.079 R)
• M12: 8,585,422 km (0.095 R)
• M13: 9,706,508 km (0.115 R)
• M14: 10,488,456 km (0.03 R)
• M15: 11,653,076 km (0.103 R)
• M16: 12,416,025 km (0.034 R)
• M17: 13,976,480 km (0.029 R)
• M18: 22,864,239 km (0.116 R)
• M19: 26,076,405 km (0.089 R)
• M20: 27,790,198 km (0.047 R)
• M21: 28,412,525 km (0.078 R)
• M22: 34,320,594 km (0.078 R)
• M23: 35,037,168 km (0.095 R)
• M24: 49,094,880 km (0.057 R)
• M25: 50,157,174 km (0.117 R)

Planet 8 - Ice Giant

Semi-Major Axis: 18.58 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 527.6

Radius: 3.7

Gravity: 38.54 G

Time & Orbit

Eccentricity (e): 0.098

Orbit Range: 16.76 AU - 20.4 AU

Year: 29252 Days

Day: 16.4 Hours

Environment

Temp: -203 °C

Axial Tilt: 26.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 89,869,171 km

• M1: 46,974 km (0.117 R)
• M2: 234,420 km (0.075 R)
• M3: 380,577 km (0.084 R)
• M4: 2,017,776 km (0.074 R)
• M5: 3,799,038 km (0.041 R)
• M6: 4,449,789 km (0.115 R)
• M7: 4,744,945 km (0.076 R)
• M8: 6,191,557 km (0.117 R)
• M9: 7,237,545 km (0.051 R)
• M10: 7,802,277 km (0.114 R)
• M11: 28,164,941 km (0.117 R)
• M12: 33,016,699 km (0.119 R)
• M13: 34,417,533 km (0.057 R)
• M14: 36,297,081 km (0.09 R)
• M15: 42,671,745 km (0.084 R)
• M16: 46,381,324 km (0.085 R)
• M17: 49,934,872 km (0.077 R)
• M18: 54,820,140 km (0.092 R)
• M19: 66,845,415 km (0.116 R)
• M20: 73,939,645 km (0.086 R)
• M21: 74,413,870 km (0.102 R)
• M22: 74,890,040 km (0.113 R)
• M23: 89,063,242 km (0.075 R)

Kuiper Belt

Range: 30 - 48 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 173 - 17,209 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit