🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.52 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.27

Radius: 1.61

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.058

Orbit Range: 0.49 AU - 0.55 AU

Year: 246 Days

Day: 34.7 Hours

Environment

Temp: -127 °C

Axial Tilt: 13.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 877.9

Radius: 9.9

Gravity: 8.96 G

Time & Orbit

Eccentricity (e): 0.032

Orbit Range: 0.93 AU - 0.99 AU

Year: 617 Days

Day: 13.1 Hours

Environment

Temp: -155 °C

Axial Tilt: 7.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 36,892,636 km

• M1: 123,418 km (0.118 R)
• M2: 499,806 km (0.109 R)
• M3: 1,166,564 km (0.091 R)
• M4: 1,685,370 km (0.101 R)
• M5: 2,022,114 km (0.107 R)
• M6: 2,393,865 km (0.068 R)
• M7: 3,302,373 km (0.104 R)
• M8: 4,055,897 km (0.081 R)
• M9: 4,489,582 km (0.104 R)
• M10: 5,616,951 km (0.094 R)
• M11: 7,251,607 km (0.091 R)
• M12: 8,058,239 km (0.086 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 125.1

Radius: 12.5

Gravity: 0.8 G

Time & Orbit

Eccentricity (e): 0.184

Orbit Range: 0.86 AU - 1.26 AU

Year: 716 Days

Day: 5.8 Hours

Environment

Temp: -154 °C

Axial Tilt: 0.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 36,892,636 km

• M1: 162,463 km (0.084 R)
• M2: 629,209 km (0.104 R)
• M3: 1,110,465 km (0.116 R)
• M4: 1,574,667 km (0.063 R)
• M5: 2,265,660 km (0.112 R)
• M6: 2,842,360 km (0.095 R)
• M7: 3,276,493 km (0.119 R)
• M8: 3,957,013 km (0.117 R)
• M9: 4,435,278 km (0.063 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 247

Radius: 13

Gravity: 1.46 G

Time & Orbit

Eccentricity (e): 0.047

Orbit Range: 1.04 AU - 1.14 AU

Year: 747 Days

Day: 11.4 Hours

Environment

Temp: -171 °C

Axial Tilt: 33.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 36,892,636 km

• M1: 161,715 km (0.056 R)
• M2: 620,083 km (0.059 R)
• M3: 1,068,278 km (0.088 R)
• M4: 1,484,908 km (0.106 R)
• M5: 2,180,987 km (0.117 R)
• M6: 2,797,331 km (0.099 R)
• M7: 3,552,201 km (0.12 R)
• M8: 4,439,018 km (0.105 R)
• M9: 4,881,827 km (0.103 R)
• M10: 5,402,877 km (0.076 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 210

Radius: 11.3

Gravity: 1.64 G

Time & Orbit

Eccentricity (e): 0.07

Orbit Range: 2.66 AU - 3.06 AU

Year: 3173 Days

Day: 11 Hours

Environment

Temp: -207 °C

Axial Tilt: 9.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 36,892,636 km

• M1: 140,472 km (0.077 R)
• M2: 1,205,160 km (0.104 R)
• M3: 2,421,391 km (0.056 R)
• M4: 3,076,929 km (0.074 R)
• M5: 5,723,166 km (0.052 R)
• M6: 7,020,329 km (0.078 R)
• M7: 9,385,022 km (0.119 R)
• M8: 10,016,625 km (0.048 R)
• M9: 10,854,821 km (0.032 R)
• M10: 11,217,447 km (0.056 R)
• M11: 14,768,900 km (0.104 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.86 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 861.4

Radius: 6.7

Gravity: 19.19 G

Time & Orbit

Eccentricity (e): 0.204

Orbit Range: 5.46 AU - 8.26 AU

Year: 11787 Days

Day: 24.3 Hours

Environment

Temp: -220 °C

Axial Tilt: 1.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 36,892,636 km

• M1: 83,326 km (0.042 R)
• M2: 551,418 km (0.08 R)
• M3: 803,191 km (0.033 R)
• M4: 1,156,092 km (0.042 R)
• M5: 1,548,188 km (0.09 R)
• M6: 2,080,607 km (0.063 R)
• M7: 2,512,795 km (0.059 R)
• M8: 2,728,366 km (0.094 R)
• M9: 3,398,714 km (0.072 R)
• M10: 5,197,479 km (0.081 R)
• M11: 5,549,333 km (0.083 R)
• M12: 7,075,082 km (0.08 R)
• M13: 7,775,349 km (0.075 R)
• M14: 8,235,812 km (0.108 R)
• M15: 12,597,337 km (0.112 R)
• M16: 14,429,163 km (0.052 R)
• M17: 15,195,105 km (0.102 R)
• M18: 15,552,045 km (0.098 R)
• M19: 16,282,681 km (0.071 R)
• M20: 16,581,278 km (0.048 R)
• M21: 17,577,002 km (0.09 R)
• M22: 24,112,334 km (0.117 R)
• M23: 25,992,929 km (0.107 R)
• M24: 27,545,007 km (0.107 R)
• M25: 30,155,340 km (0.103 R)
• M26: 30,492,833 km (0.063 R)
• M27: 31,984,324 km (0.093 R)
• M28: 33,644,262 km (0.091 R)
• M29: 35,360,748 km (0.08 R)
• M30: 36,622,157 km (0.117 R)
• M31: 39,502,066 km (0.11 R)
• M32: 40,722,485 km (0.096 R)
• M33: 41,688,887 km (0.119 R)
• M34: 46,004,636 km (0.053 R)
• M35: 50,135,183 km (0.101 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.99 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 212.5

Radius: 5.7

Gravity: 6.54 G

Time & Orbit

Eccentricity (e): 0.165

Orbit Range: 5.84 AU - 8.14 AU

Year: 12123 Days

Day: 18.7 Hours

Environment

Temp: -232 °C

Axial Tilt: 6.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 36,892,636 km

• M1: 71,508 km (0.057 R)
• M2: 436,826 km (0.099 R)
• M3: 748,438 km (0.115 R)
• M4: 1,243,906 km (0.111 R)
• M5: 1,467,705 km (0.115 R)
• M6: 2,155,855 km (0.071 R)
• M7: 3,186,135 km (0.057 R)
• M8: 3,381,660 km (0.075 R)
• M9: 4,646,061 km (0.053 R)
• M10: 5,013,025 km (0.105 R)
• M11: 5,583,890 km (0.085 R)
• M12: 7,144,346 km (0.066 R)
• M13: 8,265,432 km (0.079 R)
• M14: 9,190,695 km (0.119 R)
• M15: 11,345,054 km (0.092 R)
• M16: 11,751,212 km (0.073 R)
• M17: 13,929,357 km (0.118 R)
• M18: 14,572,478 km (0.042 R)
• M19: 17,814,862 km (0.091 R)
• M20: 20,077,530 km (0.053 R)
• M21: 27,454,351 km (0.039 R)
• M22: 32,954,765 km (0.112 R)
• M23: 33,160,163 km (0.068 R)
• M24: 33,885,414 km (0.073 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: 530 - 19,883 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit