🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.58 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.68

Radius: 1.23

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.019

Orbit Range: 0.57 AU - 0.59 AU

Year: 290 Days

Day: 27.4 Hours

Environment

Temp: -119 °C

Axial Tilt: 31.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 35,840,352 km

• M1: 43,683 km (0.032 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 508.2

Radius: 8.8

Gravity: 6.56 G

Time & Orbit

Eccentricity (e): 0.083

Orbit Range: 0.95 AU - 1.13 AU

Year: 696 Days

Day: 5.5 Hours

Environment

Temp: -160 °C

Axial Tilt: 11.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 35,840,352 km

• M1: 109,655 km (0.114 R)
• M2: 455,376 km (0.097 R)
• M3: 742,305 km (0.084 R)
• M4: 1,018,761 km (0.088 R)
• M5: 1,406,669 km (0.096 R)
• M6: 1,934,749 km (0.09 R)
• M7: 2,393,117 km (0.096 R)
• M8: 2,741,531 km (0.09 R)
• M9: 3,797,841 km (0.067 R)
• M10: 4,629,007 km (0.107 R)
• M11: 4,920,424 km (0.069 R)
• M12: 5,416,041 km (0.11 R)
• M13: 5,869,622 km (0.096 R)
• M14: 7,019,880 km (0.082 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 851.4

Radius: 14.6

Gravity: 3.99 G

Time & Orbit

Eccentricity (e): 0.034

Orbit Range: 1.05 AU - 1.13 AU

Year: 747 Days

Day: 10.2 Hours

Environment

Temp: -154 °C

Axial Tilt: 12 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 35,840,352 km

• M1: 181,612 km (0.115 R)
• M2: 688,599 km (0.106 R)
• M3: 1,261,260 km (0.076 R)
• M4: 1,875,209 km (0.112 R)
• M5: 2,378,457 km (0.056 R)
• M6: 2,863,004 km (0.059 R)
• M7: 4,580,238 km (0.049 R)
• M8: 5,997,977 km (0.094 R)
• M9: 6,819,718 km (0.12 R)
• M10: 7,338,673 km (0.091 R)
• M11: 8,104,913 km (0.034 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 601.3

Radius: 9.6

Gravity: 6.52 G

Time & Orbit

Eccentricity (e): 0.13

Orbit Range: 1.33 AU - 1.73 AU

Year: 1241 Days

Day: 6.2 Hours

Environment

Temp: -189 °C

Axial Tilt: 11.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 35,840,352 km

• M1: 119,529 km (0.065 R)
• M2: 482,902 km (0.106 R)
• M3: 1,056,161 km (0.096 R)
• M4: 1,440,927 km (0.109 R)
• M5: 1,764,208 km (0.065 R)
• M6: 2,136,258 km (0.086 R)
• M7: 2,524,314 km (0.12 R)
• M8: 3,138,115 km (0.047 R)
• M9: 3,704,642 km (0.041 R)
• M10: 4,268,027 km (0.103 R)
• M11: 4,755,268 km (0.112 R)
• M12: 5,219,171 km (0.112 R)
• M13: 5,586,732 km (0.082 R)
• M14: 6,373,916 km (0.077 R)
• M15: 7,109,489 km (0.033 R)
• M16: 8,168,044 km (0.107 R)
• M17: 9,417,336 km (0.105 R)
• M18: 10,789,597 km (0.062 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 626.8

Radius: 13.6

Gravity: 3.39 G

Time & Orbit

Eccentricity (e): 0.13

Orbit Range: 1.63 AU - 2.11 AU

Year: 1678 Days

Day: 5.4 Hours

Environment

Temp: -197 °C

Axial Tilt: 39.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 35,840,352 km

• M1: 169,794 km (0.106 R)
• M2: 623,075 km (0.062 R)
• M3: 1,376,749 km (0.082 R)
• M4: 2,274,935 km (0.038 R)
• M5: 3,205,134 km (0.094 R)
• M6: 4,451,135 km (0.11 R)
• M7: 5,744,857 km (0.118 R)
• M8: 8,697,471 km (0.114 R)
• M9: 10,028,443 km (0.119 R)
• M10: 11,166,284 km (0.045 R)
• M11: 11,748,070 km (0.11 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 43.2

Radius: 8.1

Gravity: 0.66 G

Time & Orbit

Eccentricity (e): 0.091

Orbit Range: 2.51 AU - 3.01 AU

Year: 3008 Days

Day: 12.2 Hours

Environment

Temp: -207 °C

Axial Tilt: 37.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 35,840,352 km

• M1: 115,789 km (0.11 R)
• M2: 557,850 km (0.034 R)
• M3: 1,102,686 km (0.053 R)
• M4: 1,603,240 km (0.065 R)
• M5: 1,975,141 km (0.082 R)
• M6: 2,414,659 km (0.098 R)
• M7: 2,857,319 km (0.073 R)
• M8: 3,353,236 km (0.119 R)
• M9: 4,040,938 km (0.119 R)
• M10: 4,321,882 km (0.056 R)
• M11: 5,299,056 km (0.071 R)
• M12: 5,713,292 km (0.094 R)
• M13: 6,649,177 km (0.09 R)
• M14: 7,473,311 km (0.063 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 876.9

Radius: 12.7

Gravity: 5.44 G

Time & Orbit

Eccentricity (e): 0.123

Orbit Range: 2.73 AU - 3.49 AU

Year: 3598 Days

Day: 8 Hours

Environment

Temp: -200 °C

Axial Tilt: 33 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 35,840,352 km

• M1: 159,771 km (0.088 R)
• M2: 732,431 km (0.091 R)
• M3: 1,260,811 km (0.112 R)
• M4: 2,096,764 km (0.044 R)
• M5: 2,574,579 km (0.058 R)
• M6: 3,429,232 km (0.084 R)
• M7: 4,098,383 km (0.093 R)
• M8: 5,081,391 km (0.052 R)
• M9: 5,754,432 km (0.071 R)
• M10: 6,425,229 km (0.079 R)
• M11: 7,579,675 km (0.071 R)
• M12: 9,211,489 km (0.069 R)
• M13: 10,549,193 km (0.088 R)
• M14: 12,672,884 km (0.113 R)
• M15: 14,746,311 km (0.071 R)
• M16: 16,745,686 km (0.051 R)
• M17: 20,205,885 km (0.083 R)

Planet 8 - Gas Giant

Semi-Major Axis: 3.49 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 504.3

Radius: 13.6

Gravity: 2.73 G

Time & Orbit

Eccentricity (e): 0.172

Orbit Range: 2.89 AU - 4.09 AU

Year: 4277 Days

Day: 10.8 Hours

Environment

Temp: -197 °C

Axial Tilt: 6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 35,840,352 km

• M1: 170,242 km (0.113 R)
• M2: 649,404 km (0.097 R)
• M3: 1,754,334 km (0.046 R)
• M4: 3,200,946 km (0.115 R)
• M5: 4,140,869 km (0.092 R)
• M6: 6,012,638 km (0.067 R)
• M7: 6,777,681 km (0.089 R)
• M8: 8,755,515 km (0.101 R)
• M9: 9,818,258 km (0.105 R)
• M10: 12,662,113 km (0.075 R)
• M11: 13,622,831 km (0.052 R)
• M12: 17,370,706 km (0.082 R)
• M13: 18,496,131 km (0.086 R)
• M14: 21,824,684 km (0.104 R)
• M15: 22,994,390 km (0.092 R)

Planet 9 - Gas Giant

Semi-Major Axis: 5.37 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 429.7

Radius: 14.8

Gravity: 1.96 G

Time & Orbit

Eccentricity (e): 0.224

Orbit Range: 4.17 AU - 6.57 AU

Year: 8163 Days

Day: 6.3 Hours

Environment

Temp: -214 °C

Axial Tilt: 7.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 35,840,352 km

• M1: 184,005 km (0.112 R)
• M2: 810,820 km (0.108 R)
• M3: 1,465,461 km (0.074 R)
• M4: 2,049,341 km (0.106 R)
• M5: 2,714,154 km (0.069 R)
• M6: 3,957,312 km (0.115 R)
• M7: 4,456,521 km (0.1 R)
• M8: 5,284,844 km (0.08 R)
• M9: 5,798,713 km (0.108 R)
• M10: 9,841,146 km (0.082 R)
• M11: 11,999,694 km (0.094 R)
• M12: 12,945,901 km (0.046 R)
• M13: 15,046,703 km (0.086 R)
• M14: 15,651,677 km (0.049 R)
• M15: 16,653,385 km (0.098 R)
• M16: 17,763,999 km (0.061 R)
• M17: 19,203,579 km (0.101 R)
• M18: 21,017,154 km (0.1 R)
• M19: 24,732,118 km (0.06 R)
• M20: 25,490,430 km (0.069 R)
• M21: 26,004,598 km (0.119 R)
• M22: 28,587,854 km (0.116 R)
• M23: 29,705,200 km (0.101 R)
• M24: 31,435,599 km (0.072 R)
• M25: 32,425,638 km (0.114 R)
• M26: 33,949,292 km (0.111 R)
• M27: 35,096,857 km (0.096 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 505 - 19,813 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit