🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 67.3

Radius: 9.9

Gravity: 0.69 G

Time & Orbit

Eccentricity (e): 0.033

Orbit Range: 0.52 AU - 0.56 AU

Year: 274 Days

Day: 12.8 Hours

Environment

Temp: -138 °C

Axial Tilt: 0.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 63,989,426 km

• M1: 135,087 km (0.088 R)
• M2: 481,855 km (0.099 R)
• M3: 804,089 km (0.112 R)
• M4: 1,257,370 km (0.072 R)
• M5: 1,787,096 km (0.096 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 623.2

Radius: 12.4

Gravity: 4.05 G

Time & Orbit

Eccentricity (e): 0.222

Orbit Range: 0.53 AU - 0.83 AU

Year: 387 Days

Day: 5.8 Hours

Environment

Temp: -151 °C

Axial Tilt: 23.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 63,989,426 km

• M1: 154,235 km (0.064 R)
• M2: 599,738 km (0.12 R)
• M3: 1,022,202 km (0.065 R)
• M4: 2,104,393 km (0.085 R)
• M5: 2,957,999 km (0.097 R)
• M6: 3,368,196 km (0.039 R)
• M7: 3,991,870 km (0.036 R)
• M8: 4,399,374 km (0.057 R)
• M9: 4,834,854 km (0.076 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 104.2

Radius: 14.8

Gravity: 0.48 G

Time & Orbit

Eccentricity (e): 0.133

Orbit Range: 0.73 AU - 0.95 AU

Year: 531 Days

Day: 13.7 Hours

Environment

Temp: -160 °C

Axial Tilt: 15.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 63,989,426 km

• M1: 184,005 km (0.087 R)
• M2: 647,460 km (0.119 R)
• M3: 1,603,390 km (0.11 R)
• M4: 2,292,139 km (0.101 R)
• M5: 2,865,697 km (0.039 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 469.4

Radius: 10.6

Gravity: 4.18 G

Time & Orbit

Eccentricity (e): 0.164

Orbit Range: 0.77 AU - 1.07 AU

Year: 609 Days

Day: 6.1 Hours

Environment

Temp: -178 °C

Axial Tilt: 39.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 63,989,426 km

• M1: 132,095 km (0.112 R)
• M2: 532,868 km (0.12 R)
• M3: 885,919 km (0.045 R)
• M4: 1,434,943 km (0.114 R)
• M5: 2,183,231 km (0.037 R)
• M6: 2,584,752 km (0.076 R)
• M7: 3,890,592 km (0.034 R)
• M8: 4,470,433 km (0.07 R)
• M9: 5,439,079 km (0.116 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 928.8

Radius: 11.1

Gravity: 7.54 G

Time & Orbit

Eccentricity (e): 0.069

Orbit Range: 1.13 AU - 1.29 AU

Year: 919 Days

Day: 9.7 Hours

Environment

Temp: -191 °C

Axial Tilt: 16.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 63,989,426 km

• M1: 138,079 km (0.089 R)
• M2: 524,789 km (0.106 R)
• M3: 1,021,903 km (0.069 R)
• M4: 1,455,138 km (0.12 R)
• M5: 1,931,608 km (0.111 R)
• M6: 2,328,192 km (0.079 R)
• M7: 2,691,864 km (0.098 R)
• M8: 3,217,850 km (0.058 R)
• M9: 3,795,747 km (0.102 R)
• M10: 4,269,523 km (0.052 R)
• M11: 4,654,887 km (0.104 R)
• M12: 5,025,441 km (0.095 R)
• M13: 5,455,834 km (0.086 R)
• M14: 6,873,723 km (0.086 R)
• M15: 8,280,541 km (0.107 R)
• M16: 9,661,479 km (0.11 R)
• M17: 10,706,271 km (0.089 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 615.4

Radius: 15

Gravity: 2.74 G

Time & Orbit

Eccentricity (e): 0.016

Orbit Range: 2.53 AU - 2.61 AU

Year: 2844 Days

Day: 13.5 Hours

Environment

Temp: -218 °C

Axial Tilt: 35.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 63,989,426 km

• M1: 186,848 km (0.117 R)
• M2: 674,836 km (0.113 R)
• M3: 2,028,547 km (0.083 R)
• M4: 2,604,499 km (0.053 R)
• M5: 3,103,258 km (0.066 R)
• M6: 3,610,694 km (0.027 R)
• M7: 4,840,837 km (0.106 R)
• M8: 5,503,556 km (0.092 R)
• M9: 6,444,527 km (0.108 R)
• M10: 7,129,835 km (0.062 R)
• M11: 7,675,268 km (0.047 R)
• M12: 8,782,293 km (0.099 R)
• M13: 10,030,537 km (0.113 R)
• M14: 11,272,499 km (0.064 R)
• M15: 11,763,928 km (0.077 R)
• M16: 15,415,911 km (0.09 R)
• M17: 18,950,609 km (0.093 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.42 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 824.2

Radius: 6

Gravity: 22.89 G

Time & Orbit

Eccentricity (e): 0.2

Orbit Range: 5.14 AU - 7.7 AU

Year: 11228 Days

Day: 21.1 Hours

Environment

Temp: -223 °C

Axial Tilt: 15.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 63,989,426 km

• M1: 74,949 km (0.032 R)
• M2: 330,761 km (0.115 R)
• M3: 893,398 km (0.086 R)
• M4: 1,650,513 km (0.075 R)
• M5: 3,701,351 km (0.108 R)
• M6: 5,119,987 km (0.065 R)
• M7: 5,969,105 km (0.102 R)
• M8: 6,466,518 km (0.087 R)
• M9: 8,544,133 km (0.106 R)
• M10: 10,530,793 km (0.059 R)
• M11: 13,056,304 km (0.102 R)
• M12: 13,761,957 km (0.11 R)
• M13: 18,458,881 km (0.045 R)
• M14: 32,557,433 km (0.032 R)
• M15: 35,919,346 km (0.072 R)
• M16: 41,385,054 km (0.114 R)
• M17: 43,746,457 km (0.099 R)

Asteroid Belt

Center: 7.58 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 8 - Ice Giant

Semi-Major Axis: 8.74 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 948.2

Radius: 7.9

Gravity: 15.19 G

Time & Orbit

Eccentricity (e): 0.222

Orbit Range: 6.8 AU - 10.68 AU

Year: 17835 Days

Day: 16.6 Hours

Environment

Temp: -238 °C

Axial Tilt: 10.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 63,989,426 km

• M1: 102,923 km (0.081 R)
• M2: 483,800 km (0.105 R)
• M3: 1,295,069 km (0.112 R)
• M4: 1,992,195 km (0.113 R)
• M5: 2,238,134 km (0.105 R)
• M6: 2,669,424 km (0.091 R)
• M7: 3,048,206 km (0.063 R)
• M8: 3,491,315 km (0.118 R)
• M9: 4,970,838 km (0.057 R)
• M10: 6,424,331 km (0.094 R)
• M11: 7,587,305 km (0.118 R)
• M12: 8,721,705 km (0.114 R)
• M13: 10,024,553 km (0.056 R)
• M14: 10,445,671 km (0.047 R)
• M15: 10,941,289 km (0.06 R)
• M16: 11,713,962 km (0.086 R)
• M17: 15,171,468 km (0.105 R)
• M18: 17,131,649 km (0.114 R)
• M19: 17,560,396 km (0.107 R)
• M20: 18,084,139 km (0.077 R)
• M21: 21,153,438 km (0.083 R)
• M22: 22,047,136 km (0.117 R)
• M23: 23,487,015 km (0.066 R)
• M24: 26,553,173 km (0.109 R)
• M25: 27,243,268 km (0.094 R)
• M26: 29,385,360 km (0.096 R)
• M27: 36,200,142 km (0.085 R)
• M28: 36,906,243 km (0.083 R)
• M29: 40,272,644 km (0.103 R)
• M30: 50,706,348 km (0.113 R)
• M31: 58,644,759 km (0.118 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.77 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 507.1

Radius: 4.6

Gravity: 23.97 G

Time & Orbit

Eccentricity (e): 0.192

Orbit Range: 7.09 AU - 10.45 AU

Year: 17927 Days

Day: 17.6 Hours

Environment

Temp: -238 °C

Axial Tilt: 2.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 63,989,426 km

• M1: 57,146 km (0.111 R)
• M2: 371,302 km (0.08 R)
• M3: 649,255 km (0.095 R)
• M4: 930,050 km (0.107 R)
• M5: 1,490,892 km (0.114 R)
• M6: 1,907,074 km (0.099 R)
• M7: 2,231,701 km (0.084 R)
• M8: 3,269,312 km (0.04 R)
• M9: 4,210,582 km (0.106 R)
• M10: 4,560,940 km (0.071 R)
• M11: 6,526,806 km (0.098 R)
• M12: 7,671,229 km (0.074 R)
• M13: 9,203,111 km (0.096 R)
• M14: 9,521,456 km (0.055 R)
• M15: 11,772,754 km (0.06 R)
• M16: 12,466,739 km (0.059 R)
• M17: 14,284,951 km (0.118 R)
• M18: 18,689,262 km (0.04 R)
• M19: 20,968,386 km (0.096 R)
• M20: 21,334,601 km (0.101 R)
• M21: 28,011,304 km (0.086 R)
• M22: 36,745,127 km (0.07 R)
• M23: 45,127,394 km (0.113 R)
• M24: 51,481,564 km (0.043 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 307 - 13,523 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit