🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.28

Radius: 1.39

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.204

Orbit Range: 0.48 AU - 0.72 AU

Year: 305 Days

Day: 44.3 Hours

Environment

Temp: -128 °C

Axial Tilt: 3.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 884.9

Radius: 8.7

Gravity: 11.69 G

Time & Orbit

Eccentricity (e): 0.189

Orbit Range: 0.62 AU - 0.92 AU

Year: 443 Days

Day: 10.9 Hours

Environment

Temp: -142 °C

Axial Tilt: 12.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 82,359,002 km

• M1: 108,159 km (0.101 R)
• M2: 423,512 km (0.103 R)
• M3: 713,881 km (0.109 R)
• M4: 996,771 km (0.08 R)
• M5: 1,343,389 km (0.104 R)
• M6: 1,723,667 km (0.08 R)
• M7: 2,077,017 km (0.079 R)
• M8: 2,568,745 km (0.095 R)
• M9: 2,875,570 km (0.078 R)
• M10: 3,147,838 km (0.109 R)
• M11: 3,500,141 km (0.101 R)
• M12: 4,565,278 km (0.052 R)
• M13: 4,842,782 km (0.052 R)
• M14: 5,431,899 km (0.033 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 303.1

Radius: 12.1

Gravity: 2.07 G

Time & Orbit

Eccentricity (e): 0.135

Orbit Range: 1.1 AU - 1.44 AU

Year: 939 Days

Day: 15 Hours

Environment

Temp: -163 °C

Axial Tilt: 33.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 82,359,002 km

• M1: 150,495 km (0.115 R)
• M2: 634,445 km (0.119 R)
• M3: 1,052,870 km (0.119 R)
• M4: 2,384,590 km (0.115 R)
• M5: 2,774,891 km (0.104 R)
• M6: 3,851,996 km (0.09 R)
• M7: 5,723,016 km (0.052 R)
• M8: 6,920,397 km (0.077 R)
• M9: 7,325,658 km (0.103 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 862.7

Radius: 12.7

Gravity: 5.35 G

Time & Orbit

Eccentricity (e): 0.131

Orbit Range: 1.75 AU - 2.27 AU

Year: 1869 Days

Day: 10.6 Hours

Environment

Temp: -182 °C

Axial Tilt: 18.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 82,359,002 km

• M1: 157,975 km (0.063 R)
• M2: 554,260 km (0.092 R)
• M3: 1,271,731 km (0.065 R)
• M4: 1,716,486 km (0.104 R)
• M5: 2,474,798 km (0.061 R)
• M6: 3,618,772 km (0.053 R)
• M7: 4,450,686 km (0.107 R)
• M8: 5,933,201 km (0.095 R)
• M9: 6,337,714 km (0.081 R)
• M10: 6,979,339 km (0.111 R)
• M11: 7,430,825 km (0.099 R)
• M12: 7,871,840 km (0.064 R)
• M13: 9,133,997 km (0.092 R)
• M14: 9,572,169 km (0.106 R)
• M15: 11,661,304 km (0.116 R)
• M16: 12,380,121 km (0.113 R)
• M17: 13,556,709 km (0.085 R)
• M18: 15,130,628 km (0.098 R)
• M19: 15,649,583 km (0.082 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 385.6

Radius: 11.8

Gravity: 2.77 G

Time & Orbit

Eccentricity (e): 0.244

Orbit Range: 1.58 AU - 2.6 AU

Year: 1982 Days

Day: 8.7 Hours

Environment

Temp: -185 °C

Axial Tilt: 11.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 82,359,002 km

• M1: 146,756 km (0.117 R)
• M2: 574,755 km (0.086 R)
• M3: 1,272,629 km (0.065 R)
• M4: 2,039,617 km (0.047 R)
• M5: 3,442,696 km (0.074 R)
• M6: 4,221,353 km (0.096 R)
• M7: 4,929,848 km (0.035 R)
• M8: 5,517,469 km (0.102 R)
• M9: 6,127,978 km (0.071 R)
• M10: 6,584,251 km (0.073 R)
• M11: 6,985,921 km (0.12 R)
• M12: 7,728,525 km (0.114 R)
• M13: 10,989,609 km (0.09 R)
• M14: 11,520,532 km (0.104 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 227.9

Radius: 10

Gravity: 2.28 G

Time & Orbit

Eccentricity (e): 0.134

Orbit Range: 2.86 AU - 3.74 AU

Year: 3933 Days

Day: 6.1 Hours

Environment

Temp: -198 °C

Axial Tilt: 33.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 82,359,002 km

• M1: 124,465 km (0.109 R)
• M2: 446,400 km (0.106 R)
• M3: 857,645 km (0.079 R)
• M4: 1,174,493 km (0.096 R)
• M5: 1,492,987 km (0.095 R)
• M6: 2,350,631 km (0.116 R)
• M7: 3,021,877 km (0.062 R)
• M8: 3,420,256 km (0.086 R)
• M9: 4,425,853 km (0.094 R)
• M10: 5,544,995 km (0.104 R)
• M11: 6,434,055 km (0.103 R)
• M12: 7,011,353 km (0.093 R)
• M13: 8,050,310 km (0.114 R)
• M14: 8,622,971 km (0.041 R)
• M15: 9,256,817 km (0.089 R)
• M16: 10,394,210 km (0.082 R)
• M17: 11,035,087 km (0.115 R)
• M18: 12,147,945 km (0.044 R)
• M19: 12,479,155 km (0.025 R)
• M20: 12,987,339 km (0.1 R)
• M21: 14,364,537 km (0.091 R)
• M22: 14,828,739 km (0.07 R)
• M23: 17,563,837 km (0.066 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 121.8

Radius: 11.7

Gravity: 0.89 G

Time & Orbit

Eccentricity (e): 0.121

Orbit Range: 5.11 AU - 6.51 AU

Year: 9187 Days

Day: 11.3 Hours

Environment

Temp: -220 °C

Axial Tilt: 46.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 82,359,002 km

• M1: 147,653 km (0.086 R)
• M2: 660,774 km (0.12 R)
• M3: 1,039,256 km (0.095 R)
• M4: 1,590,824 km (0.105 R)
• M5: 2,894,270 km (0.112 R)
• M6: 3,625,056 km (0.116 R)
• M7: 6,181,534 km (0.078 R)
• M8: 7,393,875 km (0.115 R)
• M9: 9,210,292 km (0.037 R)
• M10: 11,707,978 km (0.096 R)
• M11: 13,555,362 km (0.12 R)
• M12: 16,198,607 km (0.085 R)
• M13: 16,651,290 km (0.046 R)
• M14: 17,879,938 km (0.099 R)
• M15: 20,715,116 km (0.064 R)
• M16: 23,332,182 km (0.095 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.97 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 360.6

Radius: 5.7

Gravity: 11.1 G

Time & Orbit

Eccentricity (e): 0.075

Orbit Range: 6.45 AU - 7.49 AU

Year: 12071 Days

Day: 16.6 Hours

Environment

Temp: -216 °C

Axial Tilt: 20.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 82,359,002 km

• M1: 71,209 km (0.116 R)
• M2: 301,739 km (0.075 R)
• M3: 512,373 km (0.116 R)
• M4: 886,068 km (0.045 R)
• M5: 1,574,667 km (0.084 R)
• M6: 2,570,839 km (0.119 R)
• M7: 3,627,300 km (0.098 R)
• M8: 6,482,674 km (0.083 R)
• M9: 7,240,687 km (0.117 R)
• M10: 9,113,801 km (0.096 R)
• M11: 11,447,379 km (0.113 R)
• M12: 12,665,405 km (0.109 R)
• M13: 13,845,433 km (0.066 R)
• M14: 14,840,707 km (0.109 R)
• M15: 15,618,018 km (0.119 R)
• M16: 24,313,394 km (0.112 R)
• M17: 24,669,437 km (0.054 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.96 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 613.3

Radius: 7.4

Gravity: 11.2 G

Time & Orbit

Eccentricity (e): 0.214

Orbit Range: 8.61 AU - 13.31 AU

Year: 23803 Days

Day: 19.6 Hours

Environment

Temp: -231 °C

Axial Tilt: 13.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 82,359,002 km

• M1: 105,766 km (0.107 R)
• M2: 375,341 km (0.077 R)
• M3: 740,360 km (0.074 R)
• M4: 980,016 km (0.115 R)
• M5: 1,747,602 km (0.042 R)
• M6: 2,057,270 km (0.096 R)
• M7: 2,313,232 km (0.111 R)
• M8: 2,995,099 km (0.104 R)
• M9: 3,296,987 km (0.114 R)
• M10: 4,259,051 km (0.105 R)
• M11: 4,823,335 km (0.117 R)
• M12: 7,244,127 km (0.094 R)
• M13: 7,790,309 km (0.107 R)
• M14: 8,257,204 km (0.114 R)
• M15: 9,304,240 km (0.118 R)
• M16: 13,118,237 km (0.116 R)
• M17: 13,482,807 km (0.12 R)
• M18: 14,462,225 km (0.053 R)
• M19: 15,813,542 km (0.108 R)
• M20: 18,673,405 km (0.098 R)
• M21: 19,698,599 km (0.106 R)
• M22: 19,984,480 km (0.101 R)
• M23: 20,467,382 km (0.102 R)
• M24: 21,255,913 km (0.109 R)
• M25: 24,613,936 km (0.112 R)
• M26: 27,353,223 km (0.107 R)
• M27: 28,674,022 km (0.111 R)
• M28: 32,624,304 km (0.085 R)
• M29: 47,472,042 km (0.111 R)
• M30: 48,851,933 km (0.089 R)
• M31: 55,204,457 km (0.06 R)
• M32: 58,676,174 km (0.099 R)
• M33: 63,527,633 km (0.115 R)
• M34: 73,790,197 km (0.048 R)
• M35: 74,942,849 km (0.076 R)
• M36: 77,284,205 km (0.109 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: 370 - 11,723 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit