🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.43 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 873.7

Radius: 8.8

Gravity: 11.28 G

Time & Orbit

Eccentricity (e): 0.014

Orbit Range: 0.85 AU - 0.87 AU

Year: 532 Days

Day: 6.9 Hours

Environment

Temp: -165 °C

Axial Tilt: 16.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 51,663,680 km

• M1: 109,506 km (0.106 R)
• M2: 444,455 km (0.052 R)
• M3: 734,825 km (0.101 R)
• M4: 1,294,770 km (0.099 R)
• M5: 1,761,365 km (0.086 R)
• M6: 2,116,660 km (0.098 R)
• M7: 2,437,099 km (0.071 R)
• M8: 3,055,985 km (0.096 R)
• M9: 3,546,218 km (0.109 R)
• M10: 3,972,422 km (0.091 R)
• M11: 4,325,622 km (0.034 R)
• M12: 4,894,842 km (0.089 R)
• M13: 5,620,990 km (0.061 R)
• M14: 6,221,027 km (0.064 R)
• M15: 7,030,502 km (0.045 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 525.9

Radius: 11.1

Gravity: 4.27 G

Time & Orbit

Eccentricity (e): 0.033

Orbit Range: 0.93 AU - 0.99 AU

Year: 627 Days

Day: 12.8 Hours

Environment

Temp: -167 °C

Axial Tilt: 6.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 51,663,680 km

• M1: 138,079 km (0.115 R)
• M2: 579,243 km (0.069 R)
• M3: 1,081,892 km (0.102 R)
• M4: 1,597,556 km (0.061 R)
• M5: 2,320,712 km (0.117 R)
• M6: 2,867,642 km (0.051 R)
• M7: 4,120,075 km (0.084 R)
• M8: 4,487,637 km (0.118 R)
• M9: 4,925,360 km (0.095 R)
• M10: 5,289,182 km (0.077 R)
• M11: 5,742,464 km (0.119 R)
• M12: 6,928,925 km (0.111 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 11.8

Radius: 10.2

Gravity: 0.11 G

Time & Orbit

Eccentricity (e): 0.211

Orbit Range: 0.83 AU - 1.27 AU

Year: 717 Days

Day: 7 Hours

Environment

Temp: -187 °C

Axial Tilt: 13.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 51,663,680 km

• M1: 139,575 km (0.077 R)
• M2: 629,657 km (0.108 R)
• M3: 1,059,153 km (0.086 R)
• M4: 1,718,132 km (0.084 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 931.2

Radius: 8.5

Gravity: 12.89 G

Time & Orbit

Eccentricity (e): 0.23

Orbit Range: 1.64 AU - 2.62 AU

Year: 2073 Days

Day: 12.7 Hours

Environment

Temp: -202 °C

Axial Tilt: 38.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 51,663,680 km

• M1: 108,010 km (0.096 R)
• M2: 442,062 km (0.119 R)
• M3: 878,439 km (0.119 R)
• M4: 1,649,017 km (0.073 R)
• M5: 2,025,705 km (0.104 R)
• M6: 2,985,525 km (0.062 R)
• M7: 3,405,895 km (0.049 R)
• M8: 3,713,917 km (0.107 R)
• M9: 4,120,225 km (0.038 R)
• M10: 4,620,629 km (0.042 R)
• M11: 5,767,896 km (0.103 R)
• M12: 7,065,807 km (0.067 R)
• M13: 7,599,572 km (0.11 R)
• M14: 10,190,607 km (0.113 R)
• M15: 10,489,803 km (0.067 R)
• M16: 11,223,879 km (0.113 R)
• M17: 12,199,706 km (0.114 R)
• M18: 13,632,106 km (0.037 R)
• M19: 14,884,988 km (0.097 R)
• M20: 15,173,413 km (0.038 R)
• M21: 15,761,781 km (0.12 R)
• M22: 16,111,840 km (0.083 R)
• M23: 17,036,056 km (0.069 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 89.7

Radius: 14.2

Gravity: 0.44 G

Time & Orbit

Eccentricity (e): 0.079

Orbit Range: 1.99 AU - 2.33 AU

Year: 2117 Days

Day: 5.9 Hours

Environment

Temp: -206 °C

Axial Tilt: 10.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 51,663,680 km

• M1: 176,525 km (0.078 R)
• M2: 710,590 km (0.115 R)
• M3: 1,320,052 km (0.051 R)
• M4: 2,886,940 km (0.114 R)
• M5: 3,350,843 km (0.117 R)
• M6: 4,464,300 km (0.107 R)
• M7: 5,359,493 km (0.092 R)
• M8: 6,167,322 km (0.096 R)
• M9: 7,032,895 km (0.118 R)
• M10: 8,172,232 km (0.044 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.46 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 997

Radius: 14.6

Gravity: 4.68 G

Time & Orbit

Eccentricity (e): 0.198

Orbit Range: 1.97 AU - 2.95 AU

Year: 2573 Days

Day: 11 Hours

Environment

Temp: -201 °C

Axial Tilt: 28.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 51,663,680 km

• M1: 181,612 km (0.085 R)
• M2: 675,584 km (0.095 R)
• M3: 1,650,813 km (0.077 R)
• M4: 2,302,760 km (0.097 R)
• M5: 3,140,957 km (0.106 R)
• M6: 3,807,415 km (0.106 R)
• M7: 5,300,402 km (0.039 R)
• M8: 6,504,067 km (0.114 R)
• M9: 7,560,976 km (0.106 R)
• M10: 9,672,849 km (0.102 R)
• M11: 10,523,612 km (0.104 R)
• M12: 11,008,309 km (0.028 R)
• M13: 12,153,630 km (0.095 R)
• M14: 13,946,710 km (0.095 R)
• M15: 14,731,202 km (0.082 R)
• M16: 16,335,040 km (0.074 R)
• M17: 17,541,996 km (0.104 R)
• M18: 18,340,400 km (0.079 R)
• M19: 20,380,765 km (0.099 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 274

Radius: 13.6

Gravity: 1.48 G

Time & Orbit

Eccentricity (e): 0.068

Orbit Range: 2.33 AU - 2.67 AU

Year: 2636 Days

Day: 8.9 Hours

Environment

Temp: -214 °C

Axial Tilt: 44.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 51,663,680 km

• M1: 169,644 km (0.05 R)
• M2: 613,351 km (0.106 R)
• M3: 1,485,507 km (0.049 R)
• M4: 3,315,538 km (0.113 R)
• M5: 7,908,940 km (0.082 R)
• M6: 8,982,006 km (0.069 R)
• M7: 10,251,493 km (0.105 R)
• M8: 10,983,027 km (0.119 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.49 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 384

Radius: 8.1

Gravity: 5.85 G

Time & Orbit

Eccentricity (e): 0.152

Orbit Range: 3.81 AU - 5.17 AU

Year: 6345 Days

Day: 14 Hours

Environment

Temp: -229 °C

Axial Tilt: 162.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 51,663,680 km

• M1: 101,128 km (0.096 R)
• M2: 641,924 km (0.066 R)
• M3: 1,126,921 km (0.073 R)
• M4: 1,799,363 km (0.093 R)
• M5: 2,527,606 km (0.041 R)
• M6: 2,858,217 km (0.102 R)
• M7: 3,316,884 km (0.057 R)
• M8: 3,958,360 km (0.048 R)
• M9: 6,799,522 km (0.068 R)
• M10: 7,200,594 km (0.099 R)
• M11: 9,779,362 km (0.118 R)
• M12: 12,866,614 km (0.084 R)
• M13: 15,441,492 km (0.076 R)
• M14: 16,789,070 km (0.1 R)
• M15: 18,662,634 km (0.088 R)
• M16: 19,316,825 km (0.055 R)
• M17: 23,795,486 km (0.117 R)
• M18: 26,642,334 km (0.065 R)

Planet 9 - Ice Giant

Semi-Major Axis: 6.27 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 782.5

Radius: 4.7

Gravity: 35.42 G

Time & Orbit

Eccentricity (e): 0.146

Orbit Range: 5.35 AU - 7.19 AU

Year: 10470 Days

Day: 20.7 Hours

Environment

Temp: -231 °C

Axial Tilt: 27.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 51,663,680 km

• M1: 59,091 km (0.116 R)
• M2: 307,573 km (0.054 R)
• M3: 471,233 km (0.068 R)
• M4: 934,388 km (0.093 R)
• M5: 1,671,457 km (0.095 R)
• M6: 1,913,058 km (0.098 R)
• M7: 3,746,828 km (0.117 R)
• M8: 4,076,093 km (0.078 R)
• M9: 5,114,302 km (0.118 R)
• M10: 6,783,815 km (0.077 R)
• M11: 10,337,063 km (0.111 R)
• M12: 12,657,326 km (0.086 R)
• M13: 15,234,449 km (0.111 R)
• M14: 20,299,234 km (0.11 R)
• M15: 21,569,171 km (0.075 R)
• M16: 29,672,438 km (0.098 R)
• M17: 35,106,282 km (0.1 R)
• M18: 38,818,553 km (0.057 R)
• M19: 42,105,368 km (0.099 R)
• M20: 42,511,825 km (0.056 R)
• M21: 43,332,669 km (0.08 R)
• M22: 47,302,996 km (0.111 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 270 - 15,436 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit