🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.41 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 220

Radius: 9.9

Gravity: 2.24 G

Time & Orbit

Eccentricity (e): 0.178

Orbit Range: 0.67 AU - 0.95 AU

Year: 478 Days

Day: 9.3 Hours

Environment

Temp: -147 °C

Axial Tilt: 18.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 70,740,735 km

• M1: 126,261 km (0.065 R)
• M2: 537,505 km (0.102 R)
• M3: 909,405 km (0.082 R)
• M4: 1,234,930 km (0.118 R)
• M5: 1,646,025 km (0.093 R)
• M6: 2,499,631 km (0.094 R)
• M7: 2,861,358 km (0.041 R)
• M8: 3,227,125 km (0.07 R)
• M9: 3,946,093 km (0.107 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 10.2

Radius: 8.1

Gravity: 0.16 G

Time & Orbit

Eccentricity (e): 0.007

Orbit Range: 1.25 AU - 1.27 AU

Year: 928 Days

Day: 6.7 Hours

Environment

Temp: -160 °C

Axial Tilt: 21.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 70,740,735 km

• M1: 222,901 km (0.08 R)
• M2: 492,476 km (0.103 R)
• M3: 1,137,692 km (0.069 R)
• M4: 1,396,496 km (0.048 R)
• M5: 1,668,315 km (0.099 R)
• M6: 2,267,305 km (0.103 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 638.4

Radius: 14.7

Gravity: 2.95 G

Time & Orbit

Eccentricity (e): 0.102

Orbit Range: 2.45 AU - 3.01 AU

Year: 2959 Days

Day: 7.8 Hours

Environment

Temp: -202 °C

Axial Tilt: 38.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 70,740,735 km

• M1: 182,809 km (0.082 R)
• M2: 808,726 km (0.1 R)
• M3: 2,214,946 km (0.1 R)
• M4: 2,868,539 km (0.12 R)
• M5: 3,518,841 km (0.081 R)
• M6: 4,634,093 km (0.113 R)
• M7: 5,559,805 km (0.06 R)
• M8: 7,312,045 km (0.116 R)
• M9: 12,223,492 km (0.099 R)
• M10: 16,440,208 km (0.071 R)
• M11: 18,019,512 km (0.091 R)
• M12: 19,937,207 km (0.096 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 568.5

Radius: 14.4

Gravity: 2.74 G

Time & Orbit

Eccentricity (e): 0.114

Orbit Range: 2.76 AU - 3.46 AU

Year: 3598 Days

Day: 8.9 Hours

Environment

Temp: -197 °C

Axial Tilt: 11.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 70,740,735 km

• M1: 179,069 km (0.07 R)
• M2: 696,976 km (0.119 R)
• M3: 1,449,155 km (0.111 R)
• M4: 2,225,418 km (0.097 R)
• M5: 2,822,613 km (0.117 R)
• M6: 3,699,555 km (0.056 R)
• M7: 4,278,350 km (0.109 R)
• M8: 6,416,402 km (0.114 R)
• M9: 7,162,896 km (0.079 R)
• M10: 8,830,014 km (0.104 R)
• M11: 9,489,591 km (0.09 R)
• M12: 10,025,152 km (0.081 R)
• M13: 10,580,758 km (0.12 R)
• M14: 11,157,009 km (0.081 R)
• M15: 12,735,566 km (0.118 R)
• M16: 14,259,819 km (0.088 R)
• M17: 16,991,775 km (0.048 R)
• M18: 18,956,593 km (0.117 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 434.7

Radius: 12.1

Gravity: 2.97 G

Time & Orbit

Eccentricity (e): 0.064

Orbit Range: 3.09 AU - 3.51 AU

Year: 3933 Days

Day: 6.9 Hours

Environment

Temp: -208 °C

Axial Tilt: 14.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 70,740,735 km

• M1: 150,495 km (0.082 R)
• M2: 697,276 km (0.058 R)
• M3: 1,308,533 km (0.031 R)
• M4: 1,958,087 km (0.11 R)
• M5: 2,579,067 km (0.083 R)
• M6: 2,978,643 km (0.104 R)
• M7: 3,608,301 km (0.107 R)
• M8: 4,195,771 km (0.065 R)
• M9: 5,134,797 km (0.108 R)
• M10: 7,085,703 km (0.105 R)
• M11: 8,763,443 km (0.098 R)
• M12: 10,020,215 km (0.105 R)
• M13: 11,907,243 km (0.08 R)
• M14: 12,436,221 km (0.105 R)
• M15: 15,166,232 km (0.097 R)
• M16: 16,373,337 km (0.062 R)
• M17: 18,042,550 km (0.113 R)
• M18: 19,156,905 km (0.032 R)
• M19: 21,008,927 km (0.074 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 92.6

Radius: 12.2

Gravity: 0.62 G

Time & Orbit

Eccentricity (e): 0.058

Orbit Range: 3.66 AU - 4.12 AU

Year: 5033 Days

Day: 10 Hours

Environment

Temp: -203 °C

Axial Tilt: 25.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 70,740,735 km

• M1: 392,545 km (0.113 R)
• M2: 829,670 km (0.081 R)
• M3: 1,318,406 km (0.112 R)
• M4: 3,548,162 km (0.105 R)
• M5: 4,522,942 km (0.075 R)
• M6: 6,758,981 km (0.08 R)
• M7: 8,996,966 km (0.087 R)
• M8: 12,154,229 km (0.089 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.24 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 376.5

Radius: 6.9

Gravity: 7.91 G

Time & Orbit

Eccentricity (e): 0.108

Orbit Range: 7.35 AU - 9.13 AU

Year: 15517 Days

Day: 20 Hours

Environment

Temp: -225 °C

Axial Tilt: 43.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 70,740,735 km

• M1: 85,869 km (0.064 R)
• M2: 821,292 km (0.096 R)
• M3: 1,490,294 km (0.073 R)
• M4: 1,939,836 km (0.093 R)
• M5: 2,187,420 km (0.081 R)
• M6: 2,598,814 km (0.085 R)
• M7: 3,950,581 km (0.093 R)
• M8: 4,176,174 km (0.076 R)
• M9: 5,334,361 km (0.083 R)
• M10: 6,005,906 km (0.083 R)
• M11: 7,137,464 km (0.075 R)
• M12: 8,970,786 km (0.118 R)
• M13: 9,361,984 km (0.082 R)
• M14: 11,662,800 km (0.101 R)
• M15: 12,306,818 km (0.107 R)
• M16: 12,728,984 km (0.094 R)
• M17: 13,160,573 km (0.097 R)
• M18: 17,952,642 km (0.108 R)
• M19: 24,827,113 km (0.056 R)
• M20: 27,086,789 km (0.1 R)
• M21: 29,587,317 km (0.081 R)
• M22: 32,924,098 km (0.067 R)
• M23: 41,264,777 km (0.104 R)
• M24: 45,131,583 km (0.098 R)
• M25: 45,559,732 km (0.108 R)
• M26: 46,279,148 km (0.086 R)
• M27: 49,233,108 km (0.113 R)
• M28: 51,064,485 km (0.12 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.47 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 445.8

Radius: 7.1

Gravity: 8.84 G

Time & Orbit

Eccentricity (e): 0.229

Orbit Range: 8.07 AU - 12.87 AU

Year: 22224 Days

Day: 19.2 Hours

Environment

Temp: -224 °C

Axial Tilt: 25.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 70,740,735 km

• M1: 88,263 km (0.045 R)
• M2: 500,405 km (0.036 R)
• M3: 1,114,654 km (0.091 R)
• M4: 2,296,627 km (0.103 R)
• M5: 3,696,115 km (0.099 R)
• M6: 4,475,819 km (0.072 R)
• M7: 5,666,618 km (0.118 R)
• M8: 6,656,058 km (0.079 R)
• M9: 7,565,015 km (0.086 R)
• M10: 11,213,557 km (0.09 R)
• M11: 12,232,019 km (0.104 R)
• M12: 12,629,351 km (0.112 R)
• M13: 15,656,464 km (0.104 R)
• M14: 17,008,380 km (0.03 R)
• M15: 19,761,131 km (0.043 R)
• M16: 20,033,548 km (0.086 R)
• M17: 26,240,065 km (0.096 R)
• M18: 27,123,889 km (0.111 R)
• M19: 27,686,377 km (0.091 R)
• M20: 28,951,078 km (0.057 R)
• M21: 29,775,661 km (0.075 R)
• M22: 33,487,783 km (0.117 R)
• M23: 38,759,462 km (0.12 R)
• M24: 39,472,894 km (0.074 R)
• M25: 43,324,740 km (0.105 R)
• M26: 50,232,571 km (0.081 R)
• M27: 64,172,849 km (0.106 R)
• M28: 68,227,699 km (0.076 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 160 - 14,189 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit