🌌 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: 0.51 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.9

Radius: 1.89

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 0.51 AU - 0.51 AU

Year: 235 Days

Day: 24.4 Hours

Environment

Temp: -121 °C

Axial Tilt: 6.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 78,484,062 km

• M1: 197,469 km (0.086 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 857.4

Radius: 13.7

Gravity: 4.57 G

Time & Orbit

Eccentricity (e): 0.153

Orbit Range: 0.8 AU - 1.08 AU

Year: 588 Days

Day: 11.7 Hours

Environment

Temp: -158 °C

Axial Tilt: 16.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 78,484,062 km

• M1: 170,392 km (0.077 R)
• M2: 655,987 km (0.079 R)
• M3: 1,103,284 km (0.12 R)
• M4: 1,571,226 km (0.058 R)
• M5: 2,308,744 km (0.09 R)
• M6: 2,815,133 km (0.065 R)
• M7: 3,486,678 km (0.07 R)
• M8: 4,354,644 km (0.078 R)
• M9: 5,187,157 km (0.093 R)
• M10: 6,162,086 km (0.066 R)
• M11: 6,601,455 km (0.098 R)
• M12: 7,083,010 km (0.105 R)
• M13: 7,815,142 km (0.095 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 182.8

Radius: 14.1

Gravity: 0.92 G

Time & Orbit

Eccentricity (e): 0.163

Orbit Range: 0.88 AU - 1.22 AU

Year: 695 Days

Day: 12.6 Hours

Environment

Temp: -151 °C

Axial Tilt: 36.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 78,484,062 km

• M1: 176,376 km (0.095 R)
• M2: 695,331 km (0.118 R)
• M3: 1,838,109 km (0.057 R)
• M4: 2,467,168 km (0.078 R)
• M5: 3,680,556 km (0.074 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 700.5

Radius: 12.3

Gravity: 4.63 G

Time & Orbit

Eccentricity (e): 0.13

Orbit Range: 1.04 AU - 1.36 AU

Year: 849 Days

Day: 5.3 Hours

Environment

Temp: -162 °C

Axial Tilt: 88.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 78,484,062 km

• M1: 153,039 km (0.1 R)
• M2: 757,863 km (0.067 R)
• M3: 1,219,073 km (0.072 R)
• M4: 2,065,947 km (0.105 R)
• M5: 2,802,417 km (0.04 R)
• M6: 3,299,531 km (0.111 R)
• M7: 3,751,167 km (0.066 R)
• M8: 4,164,206 km (0.112 R)
• M9: 4,573,656 km (0.046 R)
• M10: 5,360,541 km (0.116 R)
• M11: 6,468,762 km (0.103 R)
• M12: 6,930,271 km (0.067 R)
• M13: 7,651,632 km (0.047 R)
• M14: 8,244,039 km (0.095 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.49 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 75.9

Radius: 13.1

Gravity: 0.44 G

Time & Orbit

Eccentricity (e): 0.183

Orbit Range: 2.85 AU - 4.13 AU

Year: 4210 Days

Day: 6.7 Hours

Environment

Temp: -208 °C

Axial Tilt: 18.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 78,484,062 km

• M1: 162,912 km (0.08 R)
• M2: 1,011,132 km (0.096 R)
• M3: 1,958,236 km (0.116 R)
• M4: 10,667,226 km (0.075 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.46 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 442

Radius: 10.4

Gravity: 4.09 G

Time & Orbit

Eccentricity (e): 0.164

Orbit Range: 3.73 AU - 5.19 AU

Year: 6082 Days

Day: 13.1 Hours

Environment

Temp: -221 °C

Axial Tilt: 38.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 78,484,062 km

• M1: 129,851 km (0.111 R)
• M2: 637,736 km (0.097 R)
• M3: 1,272,479 km (0.104 R)
• M4: 1,665,623 km (0.096 R)
• M5: 2,385,787 km (0.041 R)
• M6: 3,403,202 km (0.079 R)
• M7: 4,149,247 km (0.085 R)
• M8: 5,935,146 km (0.09 R)
• M9: 6,364,941 km (0.11 R)
• M10: 7,048,752 km (0.116 R)
• M11: 8,184,051 km (0.112 R)
• M12: 9,437,382 km (0.074 R)
• M13: 9,896,348 km (0.075 R)
• M14: 13,021,896 km (0.112 R)
• M15: 13,486,547 km (0.073 R)
• M16: 16,332,048 km (0.118 R)
• M17: 17,487,542 km (0.062 R)
• M18: 18,631,667 km (0.064 R)
• M19: 18,958,239 km (0.069 R)
• M20: 19,825,009 km (0.076 R)
• M21: 21,853,706 km (0.069 R)
• M22: 22,658,243 km (0.111 R)
• M23: 23,180,489 km (0.066 R)
• M24: 23,558,373 km (0.102 R)
• M25: 26,979,976 km (0.077 R)
• M26: 28,076,379 km (0.089 R)
• M27: 28,852,642 km (0.117 R)
• M28: 29,731,829 km (0.042 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.46 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 763.8

Radius: 12.5

Gravity: 4.89 G

Time & Orbit

Eccentricity (e): 0.153

Orbit Range: 3.78 AU - 5.14 AU

Year: 6082 Days

Day: 10.6 Hours

Environment

Temp: -217 °C

Axial Tilt: 41.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 78,484,062 km

• M1: 157,377 km (0.11 R)
• M2: 1,114,504 km (0.095 R)
• M3: 1,639,742 km (0.088 R)
• M4: 2,361,402 km (0.065 R)
• M5: 3,613,088 km (0.11 R)
• M6: 4,059,488 km (0.109 R)
• M7: 5,625,628 km (0.071 R)
• M8: 7,488,271 km (0.094 R)
• M9: 10,321,804 km (0.092 R)
• M10: 14,088,529 km (0.047 R)
• M11: 18,824,947 km (0.082 R)
• M12: 19,527,608 km (0.094 R)
• M13: 20,320,627 km (0.081 R)
• M14: 20,836,440 km (0.079 R)
• M15: 31,095,563 km (0.109 R)
• M16: 34,103,976 km (0.104 R)
• M17: 34,728,098 km (0.114 R)
• M18: 35,148,469 km (0.089 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 168.5

Radius: 11.9

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.148

Orbit Range: 4.47 AU - 6.03 AU

Year: 7767 Days

Day: 14.4 Hours

Environment

Temp: -226 °C

Axial Tilt: 39.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 78,484,062 km

• M1: 148,102 km (0.048 R)
• M2: 1,038,209 km (0.106 R)
• M3: 1,621,641 km (0.105 R)
• M4: 2,652,071 km (0.116 R)
• M5: 3,475,009 km (0.11 R)
• M6: 3,882,813 km (0.119 R)
• M7: 4,578,592 km (0.097 R)
• M8: 5,250,885 km (0.1 R)
• M9: 6,516,633 km (0.111 R)
• M10: 8,544,432 km (0.084 R)
• M11: 9,139,682 km (0.084 R)
• M12: 11,179,299 km (0.087 R)
• M13: 12,352,147 km (0.117 R)
• M14: 17,694,885 km (0.073 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.29 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 662

Radius: 6

Gravity: 18.39 G

Time & Orbit

Eccentricity (e): 0.122

Orbit Range: 9.03 AU - 11.55 AU

Year: 21313 Days

Day: 19.6 Hours

Environment

Temp: -225 °C

Axial Tilt: 13 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 78,484,062 km

• M1: 74,649 km (0.059 R)
• M2: 366,664 km (0.1 R)
• M3: 730,486 km (0.112 R)
• M4: 1,285,195 km (0.107 R)
• M5: 1,741,170 km (0.117 R)
• M6: 2,128,778 km (0.065 R)
• M7: 2,692,462 km (0.105 R)
• M8: 3,465,285 km (0.069 R)
• M9: 3,856,184 km (0.06 R)
• M10: 4,176,473 km (0.03 R)
• M11: 5,168,457 km (0.095 R)
• M12: 6,984,126 km (0.057 R)
• M13: 9,019,854 km (0.045 R)
• M14: 9,412,848 km (0.111 R)
• M15: 10,232,943 km (0.08 R)
• M16: 11,616,275 km (0.09 R)
• M17: 12,148,993 km (0.118 R)
• M18: 14,981,030 km (0.1 R)
• M19: 18,852,324 km (0.104 R)
• M20: 19,401,946 km (0.119 R)
• M21: 21,212,679 km (0.03 R)
• M22: 21,907,411 km (0.109 R)
• M23: 22,108,621 km (0.119 R)
• M24: 22,311,026 km (0.07 R)
• M25: 26,396,843 km (0.1 R)
• M26: 31,081,351 km (0.091 R)
• M27: 32,496,397 km (0.097 R)
• M28: 34,494,427 km (0.096 R)
• M29: 35,454,396 km (0.089 R)
• M30: 36,856,278 km (0.099 R)
• M31: 42,991,586 km (0.074 R)
• M32: 44,263,018 km (0.107 R)
• M33: 44,908,084 km (0.09 R)
• M34: 47,551,179 km (0.1 R)
• M35: 49,254,800 km (0.1 R)
• M36: 52,963,780 km (0.099 R)
• M37: 58,385,955 km (0.039 R)
• M38: 70,316,983 km (0.118 R)
• M39: 74,780,236 km (0.036 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: 394 - 19,536 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit