🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.65 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.98

Radius: 0.99

Gravity: 1 G

Time & Orbit

Eccentricity (e): 0.141

Orbit Range: 0.56 AU - 0.74 AU

Year: 338 Days

Day: 41.3 Hours

Environment

Temp: -142 °C

Axial Tilt: 14.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 58,477,796 km

• M1: 26,180 km (0.091 R)
• M2: 282,291 km (0.07 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 279.6

Radius: 11

Gravity: 2.31 G

Time & Orbit

Eccentricity (e): 0.096

Orbit Range: 0.83 AU - 1.01 AU

Year: 570 Days

Day: 9.1 Hours

Environment

Temp: -148 °C

Axial Tilt: 87.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 58,477,796 km

• M1: 136,882 km (0.108 R)
• M2: 659,128 km (0.085 R)
• M3: 1,086,529 km (0.109 R)
• M4: 1,873,115 km (0.09 R)
• M5: 2,326,247 km (0.107 R)
• M6: 4,860,584 km (0.095 R)
• M7: 5,249,389 km (0.057 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 321.5

Radius: 8

Gravity: 5.02 G

Time & Orbit

Eccentricity (e): 0.094

Orbit Range: 0.97 AU - 1.17 AU

Year: 715 Days

Day: 13.2 Hours

Environment

Temp: -157 °C

Axial Tilt: 42.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 58,477,796 km

• M1: 99,632 km (0.107 R)
• M2: 414,237 km (0.083 R)
• M3: 702,212 km (0.061 R)
• M4: 1,077,404 km (0.075 R)
• M5: 1,470,397 km (0.108 R)
• M6: 2,138,352 km (0.065 R)
• M7: 2,774,442 km (0.093 R)
• M8: 3,119,564 km (0.079 R)
• M9: 3,493,260 km (0.095 R)
• M10: 4,201,157 km (0.034 R)
• M11: 4,536,705 km (0.079 R)
• M12: 5,228,595 km (0.061 R)
• M13: 5,863,339 km (0.056 R)
• M14: 6,245,861 km (0.034 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 474.9

Radius: 9.7

Gravity: 5.05 G

Time & Orbit

Eccentricity (e): 0.096

Orbit Range: 2.28 AU - 2.76 AU

Year: 2583 Days

Day: 7.9 Hours

Environment

Temp: -187 °C

Axial Tilt: 7.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 58,477,796 km

• M1: 120,875 km (0.079 R)
• M2: 427,850 km (0.026 R)
• M3: 1,073,066 km (0.1 R)
• M4: 1,432,250 km (0.109 R)
• M5: 2,130,722 km (0.042 R)
• M6: 2,454,303 km (0.099 R)
• M7: 3,010,059 km (0.088 R)
• M8: 4,899,929 km (0.113 R)
• M9: 7,680,055 km (0.091 R)
• M10: 8,480,554 km (0.115 R)
• M11: 9,854,610 km (0.073 R)
• M12: 10,539,320 km (0.057 R)
• M13: 10,912,267 km (0.113 R)
• M14: 13,555,362 km (0.039 R)
• M15: 16,054,095 km (0.106 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 474.4

Radius: 14.8

Gravity: 2.17 G

Time & Orbit

Eccentricity (e): 0.154

Orbit Range: 2.32 AU - 3.16 AU

Year: 2928 Days

Day: 9.7 Hours

Environment

Temp: -208 °C

Axial Tilt: 15 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 58,477,796 km

• M1: 184,753 km (0.029 R)
• M2: 719,865 km (0.075 R)
• M3: 1,729,351 km (0.06 R)
• M4: 2,349,285 km (0.065 R)
• M5: 3,067,654 km (0.075 R)
• M6: 4,792,368 km (0.107 R)
• M7: 5,980,923 km (0.117 R)
• M8: 6,590,235 km (0.083 R)
• M9: 7,718,203 km (0.037 R)
• M10: 9,244,700 km (0.101 R)
• M11: 9,772,032 km (0.099 R)
• M12: 10,619,803 km (0.11 R)
• M13: 12,803,184 km (0.079 R)
• M14: 14,000,715 km (0.032 R)
• M15: 14,556,471 km (0.113 R)
• M16: 15,662,747 km (0.036 R)
• M17: 16,876,285 km (0.037 R)
• M18: 17,347,219 km (0.093 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 917.9

Radius: 10.3

Gravity: 8.65 G

Time & Orbit

Eccentricity (e): 0.02

Orbit Range: 4.14 AU - 4.3 AU

Year: 5597 Days

Day: 8.4 Hours

Environment

Temp: -207 °C

Axial Tilt: 19.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 58,477,796 km

• M1: 128,056 km (0.096 R)
• M2: 557,551 km (0.085 R)
• M3: 947,254 km (0.056 R)
• M4: 1,401,732 km (0.081 R)
• M5: 1,741,618 km (0.038 R)
• M6: 2,249,503 km (0.06 R)
• M7: 3,133,178 km (0.112 R)
• M8: 3,631,937 km (0.059 R)
• M9: 5,303,095 km (0.101 R)
• M10: 5,759,518 km (0.067 R)
• M11: 6,143,386 km (0.105 R)
• M12: 6,751,202 km (0.057 R)
• M13: 7,178,454 km (0.101 R)
• M14: 8,528,425 km (0.087 R)
• M15: 9,724,759 km (0.03 R)
• M16: 10,740,529 km (0.115 R)
• M17: 12,030,661 km (0.096 R)
• M18: 12,500,398 km (0.092 R)
• M19: 13,145,763 km (0.096 R)
• M20: 15,035,484 km (0.026 R)
• M21: 16,265,178 km (0.108 R)
• M22: 20,356,231 km (0.056 R)
• M23: 25,510,476 km (0.108 R)
• M24: 26,112,757 km (0.105 R)
• M25: 27,976,597 km (0.094 R)
• M26: 29,927,503 km (0.102 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.35 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 117.5

Radius: 7.4

Gravity: 2.15 G

Time & Orbit

Eccentricity (e): 0.047

Orbit Range: 6.05 AU - 6.65 AU

Year: 10332 Days

Day: 16.8 Hours

Environment

Temp: -218 °C

Axial Tilt: 3.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 58,477,796 km

• M1: 92,900 km (0.114 R)
• M2: 380,876 km (0.095 R)
• M3: 1,023,249 km (0.057 R)
• M4: 2,159,744 km (0.111 R)
• M5: 3,422,201 km (0.048 R)
• M6: 4,222,699 km (0.062 R)
• M7: 5,062,990 km (0.082 R)
• M8: 6,039,715 km (0.109 R)
• M9: 6,525,758 km (0.078 R)
• M10: 7,337,327 km (0.034 R)
• M11: 8,397,676 km (0.114 R)
• M12: 9,198,474 km (0.073 R)
• M13: 9,800,904 km (0.098 R)
• M14: 10,259,272 km (0.049 R)
• M15: 13,014,566 km (0.106 R)
• M16: 13,722,014 km (0.119 R)
• M17: 14,033,028 km (0.111 R)
• M18: 15,379,559 km (0.111 R)
• M19: 17,406,311 km (0.089 R)
• M20: 19,022,716 km (0.119 R)
• M21: 22,767,150 km (0.115 R)
• M22: 23,276,381 km (0.111 R)
• M23: 25,467,392 km (0.059 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.03 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 405.2

Radius: 4

Gravity: 25.33 G

Time & Orbit

Eccentricity (e): 0.143

Orbit Range: 7.74 AU - 10.32 AU

Year: 17521 Days

Day: 21.4 Hours

Environment

Temp: -237 °C

Axial Tilt: 37.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 58,477,796 km

• M1: 50,265 km (0.1 R)
• M2: 231,578 km (0.118 R)
• M3: 373,695 km (0.084 R)
• M4: 706,401 km (0.112 R)
• M5: 1,053,169 km (0.074 R)
• M6: 1,374,056 km (0.062 R)
• M7: 1,756,877 km (0.056 R)
• M8: 2,346,143 km (0.038 R)
• M9: 2,533,440 km (0.117 R)
• M10: 3,306,711 km (0.036 R)
• M11: 3,650,637 km (0.067 R)
• M12: 4,566,774 km (0.12 R)
• M13: 6,798,326 km (0.079 R)
• M14: 7,664,348 km (0.086 R)
• M15: 10,146,625 km (0.074 R)
• M16: 10,700,287 km (0.118 R)
• M17: 10,870,230 km (0.114 R)
• M18: 12,670,192 km (0.107 R)
• M19: 16,695,272 km (0.076 R)
• M20: 19,749,013 km (0.119 R)
• M21: 20,176,564 km (0.113 R)
• M22: 21,227,938 km (0.085 R)
• M23: 23,726,222 km (0.117 R)
• M24: 27,141,990 km (0.096 R)
• M25: 28,638,867 km (0.11 R)
• M26: 36,058,622 km (0.089 R)
• M27: 39,057,910 km (0.084 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 365 - 15,527 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit